Report 2024
Report 2024
Land use change detection is a critical area of study in environmental management and urban
planning, providing insights into how land resources are being utilized and transformed over
time. This field report focuses on the detection and analysis of land use changes in Lot
Ukhiyaghona, located within the Ramu Upazila of Cox's Bazar district.
Cox's Bazar, renowned for its extensive natural beauty and ecological significance, has been
experiencing various land use changes driven by socio-economic factors, including tourism,
agriculture, and urban expansion. The specific area of study, Lot Ukhiyaghona, is
representative of these dynamic shifts, making it a pertinent subject for detailed investigation.
Understanding land use change is essential for several reasons. It aids in resource management,
helps in planning sustainable development, and informs policy-making to balance human needs
with environmental conservation. In the context of Ramu Upazila, this analysis is particularly
relevant due to the region's vulnerability to natural disasters, such as cyclones and floods, which
are exacerbated by unsustainable land practices.
This report aims to provide a comprehensive analysis of the land use changes in Lot
Ukhiyaghona using advanced detection techniques. By employing satellite imagery and
geographic information system (GIS) tools, the study will map and quantify the changes over
a defined period. The outcomes will offer valuable insights into the patterns and drivers of land
use change, contributing to more informed and effective land management strategies in the
region.
The investigation of land use change is a vital aspect of environmental studies, particularly in
regions undergoing rapid socio-economic transformations. Lot Ukhiyaghona in Ramu Upazila,
Cox's Bazar, is a prime example of an area experiencing significant alterations in land use
patterns. This background section elucidates the foundational context and significance of
studying these changes in Lot Ukhiyaghona.
Cox's Bazar, located in southeastern Bangladesh, is globally recognized for its natural
landscapes, including the world's longest natural sea beach, diverse ecosystems, and rich
biodiversity. Ramu Upazila, situated within this district, encompasses a variety of landforms
ranging from coastal areas to agricultural fields and forested zones. Lot Ukhiyaghona, as a part
of this upazila, mirrors the broader environmental and developmental trends seen across the
region.
Socio-Economic Dynamics
The socio-economic landscape of Cox's Bazar and Ramu Upazila has been shaped by several
key factors. The area has seen a surge in tourism, given its natural attractions, which has led to
increased infrastructural development. Additionally, the region supports a substantial
agricultural economy, with shifts in crop patterns and land utilization responding to market
demands and climatic conditions. Urban expansion and population growth further compound
the pressures on land resources.
Environmental Challenges
The region is prone to natural disasters such as cyclones, floods, and tidal surges, which pose
significant risks to both the natural environment and human settlements. Unsustainable land
use practices, including deforestation, unplanned urbanization, and intensive agriculture,
exacerbate these vulnerabilities by altering natural landscapes and reducing the resilience of
ecosystems.
Advancements in remote sensing and GIS technologies have revolutionized the field of land
use change detection. These tools enable precise and comprehensive monitoring of land use
changes over time, providing critical data for environmental management and policy
formulation. Satellite imagery, in particular, allows for the assessment of large areas with high
spatial and temporal resolution, making it an invaluable resource for this study.
The primary objective of this study is to detect, map, and analyze the land use changes in Lot
Ukhiyaghona over a specified period. By understanding the extent and nature of these changes,
the study aims to identify the driving forces behind them and their implications for the local
environment and community. The findings will contribute to developing sustainable land
management practices and informing policy decisions that balance development needs with
environmental conservation.
In summary, the background of this study underscores the importance of monitoring land use
changes in Lot Ukhiyaghona within the broader context of Cox's Bazar. The insights gained
from this analysis will not only enhance our understanding of regional land use dynamics but
also support efforts to promote sustainable development and disaster resilience in the area.
Chapter 2: Methodology
Methodology
The methodology of this study is designed to systematically investigate and analyze land use
changes in Lot Ukhiyaghona, Ramu Upazila, Cox's Bazar. By employing a combination of
remote sensing, GIS, field surveys, and socio-economic data collection, the study aims to
achieve a comprehensive and multidimensional understanding of the patterns and drivers of
land use changes. This integrated approach ensures the robustness and accuracy of the findings,
providing valuable insights for sustainable land management and policy-making.
2.1.1 GPS survey (locations of each plot, altitude, landslides, hill cutting, and
soil sample)
Conducting a GPS survey involves collecting geospatial data to accurately record the locations
and features of interest, such as plot locations, altitudes, landslides, hill cutting, and soil sample
sites. Here's a detailed step-by-step guide on how to conduct a comprehensive GPS survey for
these parameters:
1. Preparation
a. Equipment
GPS Device: Ensure the GPS device is fully charged and has the necessary data storage.
Maps and Aerial Photos: Use current maps and aerial photos for preliminary
identification of areas.
Field Notebook/Tablet: For recording observations and backup notes.
Flagging Tape/Markers: To mark the exact locations in the field.
Soil Sampling Kit: For collecting soil samples.
b. Planning
Survey Plan: Outline the specific locations to be surveyed, including plots, landslides,
and hill-cutting sites.
Coordinate System: Decide on the coordinate system and datum to be used (e.g., WGS
84).
Safety Measures: Prepare for field conditions, especially in areas prone to landslides
and difficult terrain.
2. Field Data Collection
a. Plot Locations
1. Navigate to Each Plot: Use the GPS device to navigate to the predefined coordinates
of each plot.
2. Record Coordinates: At each plot, record the latitude, longitude, and altitude.
3. Mark Location: Use flagging tape or markers to identify the exact plot location on the
ground.
b. Altitude
Altitude Measurement: Use the GPS device to measure the altitude at each plot
location. Ensure the GPS is set to the correct datum for altitude readings.
c. Landslides
1. Identify Landslides: Navigate to known landslide areas or identify new ones during
the survey.
2. Record Coordinates and Extent: Record the GPS coordinates at various points along
the landslide perimeter to capture its extent.
3. Document Characteristics: Note the type, size, and current activity status of the
landslide.
d. Hill Cutting
1. Identify Hill Cutting Sites: Locate areas where hill cutting has occurred or is ongoing.
2. Record Coordinates: Record GPS coordinates at multiple points to outline the extent
of the hill cutting.
3. Document Impact: Note the scale and potential environmental impact of the hill
cutting.
e. Soil Samples
1. Select Sample Sites: Identify and navigate to soil sample collection sites.
2. Record Coordinates: Record the GPS coordinates at each soil sampling location.
3. Collect Samples: Use the soil sampling kit to collect samples, ensuring proper labeling
and storage for analysis.
3. Data Recording and Verification
Field Notebook/Tablet: Record all GPS coordinates, altitudes, and observations in a
field notebook or tablet.
Double-check Data: Verify the accuracy of recorded data by cross-referencing with
maps and notes.
Backup Data: Save GPS data to a secure backup to prevent loss.
4. Post-Survey Processing
a. Data Download
Transfer Data: Download the GPS data to a computer for further processing and
analysis.
GIS Software: Use GIS software (e.g., QGIS, ArcGIS) to visualize and analyze the
data.
b. Data Analysis
Mapping: Create maps showing the locations of plots, altitudes, landslides, hill cutting
areas, and soil samples.
Spatial Analysis: Perform spatial analysis to understand patterns and relationships
between different features.
c. Reporting
Document Findings: Prepare a detailed report summarizing the GPS survey findings.
Visual Aids: Include maps, charts, and graphs to illustrate the data effectively.
5. Quality Assurance
Cross-Check Data: Cross-check the GPS data with other sources like satellite imagery
or existing maps.
Field Revisit: If necessary, revisit certain locations to verify and refine the data.
By following these steps, you can ensure that your GPS survey accurately captures the
necessary data on plot locations, altitudes, landslides, hill cutting, and soil samples, which is
crucial for effective analysis and decision-making.
2.1.3 Simple checklists (yes/no): Landslide, hill cutting, land use change
Simple Checklists for Field Observations
When conducting a field survey, simple checklists can help ensure that all necessary
observations are made and recorded consistently. Below are three checklists focusing on
landslides, hill cutting, and land use changes. These checklists can be used in conjunction with
GPS data collection to provide a comprehensive assessment of the site.
Use the Checklists
1. Preparation:
o Print the checklists or load them onto a mobile device for easy access in the
field.
o Ensure you have a GPS device to record the coordinates of each observation
point.
2. Field Survey:
o At each observation point, mark the GPS coordinates.
o Use the checklists to assess and record the presence or absence of each feature.
o Take notes or photos if additional details are needed.
3. Data Compilation:
o Transfer the GPS data and checklist observations to a computer.
o Compile the information into a report or database for further analysis.
4. Analysis:
o Use GIS software to map the locations of observed features.
o Analyze the spatial distribution of landslides, hill cutting, and land use changes
to identify patterns and potential areas of concern.
By using these checklists, you can systematically document key environmental and land use
features, aiding in the comprehensive analysis and management of the surveyed area.
2.1.4 Direct observations (soil color using Munsell Color Chart, etc.)
Direct Observations for Field Surveys
Direct observations are essential for gathering qualitative data during field surveys. These
observations provide critical insights into the physical and environmental characteristics of the
study area. Below are guidelines for making direct observations, including the use of the
Munsell Color Chart for soil color determination.
1. Soil Color Using Munsell Color Chart
The Munsell Color Chart is a standardized tool used to determine and describe soil color
accurately. Here's how to use it:
Procedure:
1. Collect Soil Sample: Take a small sample of soil from the desired depth.
2. Moisture Condition: Ensure the soil is at a consistent moisture level (usually
moist) for accurate color comparison.
3. Natural Light: Perform the color comparison in natural light to avoid color
distortion.
4. Match Color: Compare the soil sample to the Munsell Color Chart to find the
closest match. The chart will provide a color notation in the format of Hue,
Value, and Chroma (e.g., 10YR 5/3).
Recording:
o Record the Munsell notation and any additional observations about the soil (e.g.,
texture, structure).
2. Vegetation
Observing vegetation can provide insights into the ecosystem and potential changes in land
use.
Key Observations:
o Type of Vegetation: Identify dominant plant species.
o Health of Vegetation: Look for signs of stress or disease.
o Coverage: Estimate the percentage of ground covered by vegetation.
o Changes in Vegetation: Note any recent changes in vegetation types or health.
3. Water Features
Water features can indicate the presence of groundwater, surface water dynamics, and potential
environmental impacts.
Key Observations:
o Type: Identify the type of water feature (e.g., river, stream, and pond).
o Water Quality: Observe water clarity, color, and any odors.
o Flow Rate: Note the speed and volume of water flow.
o Surroundings: Record the condition of the banks and surrounding vegetation.
4. Topography
Understanding the topography helps in assessing erosion risks, drainage patterns, and
suitability for different land uses.
Key Observations:
o Slope: Estimate the slope gradient (e.g., gentle, moderate, steep).
o Features: Identify and describe major topographic features (e.g., hills, valleys).
o Elevation Changes: Note any significant elevation changes within the survey
area.
5. Land Use and Human Activity
Documenting land use and human activity provides context for environmental impacts and land
management practices.
Key Observations:
o Current Land Use: Identify how the land is currently being used (e.g.,
agriculture, residential, industrial).
o Infrastructure: Record the presence of buildings, roads, and other
infrastructure.
o Human Activity: Note the types and intensities of human activities observed.
Steps for Conducting Direct Observations
1. Preparation:
o Gather necessary tools (e.g., Munsell Color Chart, notebook, camera, GPS
device).
o Review the survey area and plan observation points.
2. Field Observations:
o Visit each observation point and record GPS coordinates.
o Use the Munsell Color Chart to determine soil color.
o Make detailed notes on vegetation, water features, topography, and land use.
o Take photos to supplement written observations.
3. Data Compilation:
o Organize the collected data into a structured format (e.g., tables, maps).
o Cross-reference observations with GPS data for spatial analysis.
4. Analysis and Reporting:
o Analyze the data to identify patterns and correlations.
o Prepare a report summarizing the findings and implications of the observations.
By following these guidelines and using the example observation sheet, you can systematically
document and analyze direct observations during your field survey.
2.1.5 Photography
Photography for Field Surveys
Photography is a vital tool in field surveys, providing visual documentation of the site and
supporting qualitative observations. It captures details that might be overlooked in written notes
and can be used for further analysis and presentation. Below is a guide on how to effectively
use photography during your field survey.
Objectives of Photography in Field Surveys
Documentation: Capture visual evidence of the current state of the survey area.
Support: Provide visual support for written observations and data.
Analysis: Allow for detailed analysis and comparison of features over time.
Communication: Enhance reports and presentations with clear, illustrative images.
Guidelines for Effective Field Photography
1. Equipment:
o Camera: Use a high-resolution digital camera or a smartphone with a good
camera.
o Accessories: Carry spare batteries, memory cards, and a tripod if necessary.
o GPS Integration: If available, use a camera with GPS tagging to automatically
record the location of each photo.
2. Preparation:
o Plan Shots: Determine key features and areas to photograph based on the
survey objectives.
o Check Weather: Ensure good lighting conditions; avoid harsh sunlight or poor
visibility conditions.
o Organize Equipment: Ensure your camera and accessories are ready for use.
3. Techniques:
o Wide Shots: Capture wide-angle shots to provide context and show the overall
landscape.
o Detail Shots: Take close-up photos of specific features such as soil texture,
vegetation, and water quality.
o Sequential Shots: Document changes along a gradient or over an area by
taking a series of photos.
o Reference Points: Include a scale (e.g., ruler, pen) in close-up shots to provide
a sense of size and proportion.
4. Best Practices:
o Steady Camera: Use a tripod or steady your hand to avoid blurry images.
o Multiple Angles: Photograph features from different angles to capture all
relevant details.
o Natural Light: Utilize natural lighting and avoid using flash unless necessary.
o Consistent Approach: Take photos consistently for each observation point to
ensure comparability.
5. Photo Logging:
o Labeling: Immediately label photos with relevant information (e.g., location,
date, description).
o GPS Coordinates: Record GPS coordinates for each photo if the camera does
not have GPS tagging.
o Organizing: Create a systematic way to organize photos (e.g., folders by date
or observation point).
Examples of Key Photographs to Take
1. Landscape Views:
o Overall view of the survey area
o Specific plot boundaries
o Surrounding environment
2. Soil Characteristics:
o Soil color and texture
o Soil profile (if pits or cores are taken)
3. Vegetation:
o General vegetation cover
o Specific plant species
o Signs of stress or disease in plants
4. Water Features:
o Rivers, streams, ponds
o Water quality indicators (e.g., clarity, color)
5. Topographical Features:
o Hills, valleys, slopes
o Evidence of erosion or landforms
6. Human Activities:
o Construction sites
o Agricultural practices
o Infrastructure (e.g., roads, buildings)
Integrating Photography with Other Data
1. Field Notes:
o Cross-reference photos with field notes to provide a comprehensive record of
observations.
o Include photo IDs or descriptions in your notes.
2. GIS Integration:
o Import geotagged photos into GIS software to create a visual map of
observations.
o Use GIS to analyze spatial relationships between photographed features.
3. Reports and Presentations:
o Use photos to illustrate key points in reports and presentations.
o Ensure photos are labeled and captioned for clarity.
Example Photo Log
By following these guidelines and maintaining a detailed photo log, you can effectively use
photography to enhance your field survey, providing valuable visual data to support your
findings.
2.2 Data Processing and data analysis
After collecting field data, the next crucial steps are data processing and data analysis. These
steps involve organizing, cleaning, and analyzing the data to extract meaningful insights. Here's
a detailed guide on how to handle these tasks:
1. Data Processing
1.1 Data Organization:
Compile Data: Gather all field data, including GPS coordinates, checklists, direct
observations, photographs, and any other recorded information.
Create a Database: Use software such as Excel, Google Sheets, or a dedicated database
management system to organize the data. Create tables for different data types (e.g.,
GPS points, soil observations, vegetation records).
File Naming and Structure: Ensure a consistent file naming convention and directory
structure for storing photos and documents. For example, use a format like YYYY-
MM-DD_Location_Description.jpg for photos.
1.2 Data Cleaning:
Check for Errors: Identify and correct any inaccuracies or inconsistencies in the data.
Common issues include incorrect GPS coordinates, duplicate entries, and incomplete
records.
Standardize Formats: Ensure all data is in a consistent format. For example, all dates
should follow the same format (e.g., YYYY-MM-DD), and GPS coordinates should be
in the same system (e.g., decimal degrees).
1.3 Data Integration:
Combine Data Sources: Merge data from different sources (e.g., GPS, checklists,
photos) into a comprehensive dataset.
Link Photos and Observations: Create links between photographs and their
corresponding observation records using unique identifiers.
1.4 GIS Data Preparation:
Import Data into GIS: Load GPS coordinates and other spatial data into GIS software
(e.g., ArcGIS, QGIS).
Georeferenced Photos: If not already geotagged, manually georeferenced photos using
recorded coordinates.
Create Layers: Organize data into thematic layers (e.g., soil types, vegetation, water
features).
2. Data Analysis
2.1 Descriptive Statistics:
Calculate Basic Metrics: Compute averages, medians, ranges, and standard deviations
for numerical data (e.g., altitude, soil pH).
Frequency Analysis: Determine the frequency of categorical data (e.g., soil colors,
vegetation types).
2.2 Spatial Analysis:
Mapping: Create maps to visualize the spatial distribution of key features (e.g.,
landslides, hill cutting areas, soil types).
Buffer Analysis: Perform buffer analysis to study the impact zones around features like
water bodies or hill cuts.
Overlay Analysis: Use overlay techniques to analyze the relationships between
different data layers (e.g., soil types vs. vegetation cover).
2.3 Temporal Analysis:
Time Series Analysis: If data has been collected over time, analyze changes and trends.
For example, compare vegetation cover over different seasons or years.
Change Detection: Identify and quantify changes in land use, vegetation, or other
features between different time periods.
2.4 Correlation and Regression Analysis:
Correlation Analysis: Examine the relationships between different variables (e.g., soil
type and vegetation health).
Regression Analysis: Use regression models to predict outcomes based on one or more
predictor variables (e.g., predicting landslide susceptibility based on slope and soil
type).
2.5 Qualitative Analysis:
Thematic Analysis: Identify and analyze patterns or themes in qualitative data (e.g.,
field notes, interview transcripts).
Content Analysis: Systematically categorize and interpret the content of textual data.
Tools and Software
Spreadsheet Software: Excel, Google Sheets for data organization and basic analysis.
Database Software: Access, MySQL for managing large datasets.
GIS Software: ArcGIS, QGIS for spatial data analysis and mapping.
Statistical Software: SPSS, R, Python for advanced statistical analysis.
Qualitative Analysis Software: NVivo, ATLAS.ti for analyzing textual data.
3. Reporting and Visualization
3.1 Data Visualization:
Charts and Graphs: Use bar charts, line graphs, scatter plots, and histograms to
visualize numerical data.
Maps: Create detailed maps showing spatial distributions and relationships.
Infographics: Develop infographics to present complex data in an easy-to-understand
format.
3.2 Reporting:
Summary Reports: Prepare concise reports summarizing key findings, supported by
visual aids.
Detailed Reports: Compile comprehensive reports with detailed analysis,
methodologies, and interpretations.
Presentations: Develop presentations to communicate findings to stakeholders, using
slideshows with embedded maps, charts, and photos.
Example Workflow
1. Data Collection:
o Gather GPS coordinates, soil samples, vegetation data, and photographs.
2. Data Organization:
o Enter data into a structured database (e.g., Excel, GIS software).
3. Descriptive Statistics:
o Calculate basic metrics and frequency distributions for soil characteristics and
vegetation types.
4. Spatial Analysis:
o Create maps showing soil types, vegetation cover, and land use changes.
o Perform buffer and overlay analysis to study relationships between features.
5. Temporal Analysis:
o Analyze changes in vegetation cover over different seasons using time series
analysis.
6. Statistical Analysis:
o Conduct correlation analysis to explore relationships between soil pH and
vegetation health.
o Use regression analysis to model landslide susceptibility.
7. Qualitative Analysis:
o Analyze field notes to identify recurring themes related to land use practices
and environmental conditions.
8. Visualization:
o Create charts, graphs, and maps to visualize data and analysis results.
9. Reporting:
o Compile a comprehensive report with findings, including visualizations and
interpretations.
o Prepare a presentation to communicate key findings to stakeholders.
By following these steps, you can systematically analyze your field survey data, uncover
meaningful insights, and effectively communicate your findings.
Topography
The study area is marked by diverse topographical features, ranging from flat plains to rugged
hills. The elevation varies significantly, with the lowest points situated at [specify elevation]
meters above sea level and the highest peaks reaching up to [specify elevation] meters. This
variation in altitude influences the local climate, vegetation types, and agricultural practices.
Key topographical landmarks include:
Plains: Predominantly used for agriculture and settlements, offering fertile soil and
easier access.
Hills and Mountains: Characterized by steeper slopes, which are prone to erosion and
landslides. These areas are often covered with natural vegetation or forested.
Geology
The geological composition of the study area includes a mix of sedimentary, igneous, and
metamorphic rocks. This geological diversity has implications for soil fertility, mineral
resources, and groundwater availability. Key geological formations include:
Sedimentary Rocks: Such as limestone and sandstone, which are prevalent in the lower
regions and contribute to fertile soils.
Igneous Rocks: Including granite and basalt, found in the higher elevations and
contributing to rugged terrain.
Metamorphic Rocks: Such as schist and gneiss, adding to the geological complexity
and influencing soil properties.
Hydrology
The hydrological features of the study area are dominated by several major rivers, streams, and
lakes, which are essential for irrigation, drinking water, and supporting local biodiversity. Key
hydrological features include:
Rivers and Streams: Major rivers flow through the area, providing water resources
and shaping the landscape through erosion and sediment deposition.
Lakes and Ponds: Natural and man-made lakes serve as reservoirs for irrigation and
water supply.
Groundwater: The area's aquifers are crucial for supplying water to both rural and
urban populations, with varying depths and recharge rates depending on geological
conditions.
Soil Types
The soil profile in the study area is diverse, influenced by topography, climate, and underlying
geology. Key soil types include:
Alluvial Soils: Found in river valleys and plains, these soils are highly fertile and
suitable for agriculture.
Loamy Soils: Present in gently sloping areas, providing good drainage and fertility.
Clayey Soils: Common in lower elevations, prone to waterlogging but rich in nutrients.
Sandy Soils: Found in higher elevations and along riverbanks, characterized by good
drainage but low fertility.
Understanding these physical features is essential for assessing the environmental conditions
and human activities in the study area. This knowledge forms the foundation for further
analysis in the subsequent chapters, focusing on the interactions between physical environment,
land use, and socio-economic factors.
3.2- Location of the study area
The geographical location of the study area is a crucial aspect that influences its environmental
conditions, accessibility, and socio-economic dynamics. This section provides a detailed
description of the study area's location, including its coordinates, administrative boundaries,
and connectivity.
Geographic Context
Lot Ukhiyaghona is situated in the Ramu Upazila of the Cox's Bazar District, located in the
southeastern part of Bangladesh. This region is characterized by a diverse topography, ranging
from coastal plains to hilly terrains. Cox's Bazar is renowned for its long natural sandy beach
and is a significant hub for tourism in Bangladesh.
Key Features
1. Topography:
o The area encompasses a mix of coastal lowlands and hilly regions, with
elevations varying from sea level along the coast to several hundred meters in
the hills.
o The terrain in Ukhiyaghona is influenced by the proximity to the Bay of Bengal,
which contributes to its unique landscape and climatic conditions.
2. Climate:
o The region experiences a tropical monsoon climate, with heavy rainfall during
the monsoon season (June to September) and a dry season from November to
February.
o Average annual rainfall is high, contributing to lush vegetation and a vibrant
ecosystem.
3. Vegetation and Land Use:
o The area features a combination of agricultural lands, forests, and human
settlements.
o Agricultural practices include rice paddies, vegetable farming, and horticulture.
o Forested areas are rich in biodiversity, housing a variety of flora and fauna
typical of the region's tropical ecosystem.
4. Hydrology:
o Ramu Upazila is crisscrossed by several rivers and streams, which play a crucial
role in the area's hydrology and are vital for agriculture.
o The Matamuhuri River is a significant waterway influencing the local landscape
and agriculture.
5. Socio-Economic Aspects:
o The local economy is predominantly based on agriculture, fishing, and tourism.
o Communities in Lot Ukhiyaghona are often involved in subsistence farming,
with some engagement in commercial agriculture and small-scale business
activities.
3.3- Climate
Lot Ukhiyaghona, located within the Ramu Upazila of Cox's Bazar District in southeastern
Bangladesh, experiences a tropical monsoon climate. This region is known for its hot, humid
summers and significant rainfall, particularly influenced by the Bay of Bengal.
Key Climate Characteristics
1. Temperature
o Average Annual Temperature: Approximately 26°C to 28°C (79°F to 82°F).
o Seasonal Variations:
Summer (March to May): Temperatures can soar, with average highs
often exceeding 30°C (86°F). April is typically the hottest month.
Monsoon (June to September): Slightly cooler temperatures due to
cloud cover and rain, averaging between 25°C and 28°C (77°F to 82°F).
Winter (November to February): Mild temperatures, with average
lows ranging from 15°C to 20°C (59°F to 68°F). January is usually the
coolest month.
2. Precipitation
o Annual Rainfall: The area receives heavy rainfall, with an average annual total
of about 3,000 to 3,500 mm (118 to 138 inches).
o Monsoon Season: The majority of the rain falls during the monsoon season
(June to September), accounting for over 70% of the annual total. July and
August are typically the wettest months.
o Dry Season: From November to February, rainfall is minimal, leading to a
distinct dry period with cooler temperatures.
3. Humidity
o Relative Humidity: Remains high throughout the year, often exceeding 70%.
During the monsoon, it can reach over 90%, contributing to the overall
discomfort during the hot and rainy seasons.
4. Wind Patterns
o Monsoon Winds: The southwest monsoon winds bring moist air from the Bay
of Bengal, causing heavy rainfall and influencing the regional climate.
o Cyclones: Being close to the Bay of Bengal, the area is occasionally affected
by tropical cyclones, particularly during the pre-monsoon (April to May) and
post-monsoon (October to November) periods. These can bring intense rainfall
and strong winds.
5. Seasonal Overview
o Pre-Monsoon (March to May): This period is characterized by increasing
temperatures and the onset of pre-monsoon showers. It’s also the season when
the region is most vulnerable to cyclones.
o Monsoon (June to September): Dominated by heavy rainfall and frequent
thunderstorms. The continuous rain can lead to flooding and landslides in the
hilly areas.
o Post-Monsoon (October to November): Marked by gradually reducing rainfall
and a transition to cooler temperatures. Cyclones can still pose a threat during
this time.
o Winter (December to February): The climate is cooler and drier. This is the
most comfortable period for activities and tourism in the region.
January 25 15 8 72
February 26 17 12 70
March 29 21 32 74
April 31 24 78 78
May 32 25 187 81
June 31 26 635 88
July 30 26 928 91
August 30 26 823 90
September 30 26 535 89
October 30 24 298 85
November 28 20 85 78
December 26 16 13 74
The climate of Lot Ukhiyaghona in Ramu Upazila, Cox's Bazar District, is dominated by its
tropical monsoon characteristics. Understanding these climatic patterns is essential for
effective planning and management of agriculture, infrastructure, and disaster preparedness in
the region. The challenges posed by heavy rainfall, high humidity, and occasional cyclones
require adaptive strategies to ensure sustainable development and resilience for the local
communities.
3.4 Geology
The geological composition of the study area underpins its physical landscape, natural resource
distribution, and land use suitability. This section presents an overview of the geological
characteristics, including rock formations, soil types, and mineral resources.
3.4.1 Rock Formations
The study area exhibits a diverse range of rock formations, reflecting its geological history and
tectonic activity. Major rock types include:
Sedimentary Rocks: Formed by the accumulation and compression of sediment over
millions of years. Examples include limestone, sandstone, and shale.
Igneous Rocks: Formed from the cooling and solidification of molten magma.
Common igneous rocks include granite, basalt, and obsidian.
Metamorphic Rocks: Resulting from the transformation of existing rock types due to
high pressure, temperature, or chemical processes. Examples include marble, slate, and
schist.
These rock formations influence soil properties, topography, and groundwater conditions in the
study area.
3.4.2 Soil Types
The geological diversity of the study area gives rise to a variety of soil types, each with its own
characteristics and suitability for different land uses. Major soil types include:
Alluvial Soils: Deposited by rivers and streams, these soils are fertile and well-draining,
making them suitable for agriculture.
Latosols (Red Soils): Developed from weathered igneous rocks, latosols are rich in
iron and aluminum oxides, giving them a reddish color. They are suitable for agriculture
but may be prone to leaching.
Podzols: Found in forested areas, podzols are acidic soils with a leached surface layer
and an accumulation of organic matter below. They are generally low in fertility.
Regosols: Shallow soils with little development, often found in rocky or steep terrain.
They may be suitable for grazing but less so for agriculture.
Understanding the distribution and characteristics of these soil types is essential for land use
planning, agricultural management, and environmental conservation efforts.
3.4.3 Geological Hazards
The geological characteristics of the study area may pose hazards to human settlements,
infrastructure, and natural ecosystems. Common geological hazards include:
Landslides: Slope instability due to geological factors, precipitation, or human
activities.
Rock falls: Dislodged rocks or boulders rolling down steep slopes, posing risks to roads
and structures.
Seismic Activity: Occurrence of earthquakes due to tectonic movements, potentially
leading to damage and loss of life.
Mitigating geological hazards requires understanding the underlying geological processes and
implementing appropriate risk management measures.
The geological characteristics of the study area influence its physical landscape, natural
resource distribution, and vulnerability to geological hazards. By comprehensively
understanding the geology of the area, stakeholders can make informed decisions regarding
land use planning, resource management, and hazard mitigation strategies
3.5 Area
Lot Ukhiyaghona, a region within the Ramu Upazila of Cox's Bazar District in southeastern
Bangladesh, is notable for its diverse landscape, which includes a mix of coastal plains and
hilly terrain. This area, like much of Cox's Bazar, is defined by its complex topography,
significant biodiversity, and socio-economic activities centered on agriculture, tourism, and
local industries.
Key Characteristics of Lot Ukhiyaghona
1. Geographic Location and Boundaries
Location: Lot Ukhiyaghona is situated in the southern part of the Ramu Upazila, within
the Cox's Bazar District.
Coordinates: Approximate central coordinates are Latitude 21.4341° N and Longitude
92.1314° E.
Boundaries: The specific boundaries of Lot Ukhiyaghona within Ramu Upazila are
delineated based on administrative and land ownership records, often characterized by
natural features such as rivers and hills.
2. Size and Extent
Total Area: Lot Ukhiyaghona covers an area of approximately X square kilometers
(or Y acres). This area estimate should be derived from accurate mapping and
administrative records for precise planning and analysis.
Topographical Features: The area includes varied terrain, from flat agricultural lands
to rolling hills and forested areas, influencing land use and settlement patterns.
3. Land Use and Cover
Agriculture: Predominant land use includes paddy fields, vegetable gardens, and
orchards. The fertile soils and abundant rainfall support diverse agricultural activities.
Residential Areas: Scattered villages and settlements are found throughout the area,
with housing structures ranging from traditional bamboo and thatch homes to modern
brick buildings.
Forests and Natural Vegetation: Significant portions of the area are covered by
natural forests and plantations, contributing to the region's biodiversity.
Water Bodies: The region includes small rivers, streams, and ponds, crucial for local
water supply and irrigation.
Infrastructure: Roads, schools, and community centers serve the local population,
connecting Lot Ukhiyaghona with broader regional infrastructure.
4. Natural and Environmental Features
Hills and Elevation: The hilly parts of Lot Ukhiyaghona rise to elevations that provide
scenic views and influence local microclimates and drainage patterns.
Soil Types: Soils range from sandy loam in the plains to more clayey and rocky soils
in the hilly areas, affecting agricultural productivity and land stability.
Biodiversity: The mix of forests and agricultural lands supports a variety of flora and
fauna, including species adapted to both wetland and upland conditions.
5. Socio-Economic Aspects
Population: Lot Ukhiyaghona is home to a diverse community engaged in farming,
fishing, and small-scale commerce. The population density varies, with denser
settlements in the flatlands and more scattered habitation in the hills.
Economy: Agriculture is the primary economic activity, supplemented by fishing,
small businesses, and tourism-related enterprises due to the proximity to Cox's Bazar.
Cultural Heritage: The area is rich in cultural traditions, with various ethnic groups
contributing to the region's cultural mosaic.
3.6 Shape
Understanding the shape and spatial characteristics of Lot Ukhiyaghona is crucial for various
planning and management purposes, such as land use planning, infrastructure development,
and environmental conservation. This section details the physical shape, boundaries, and
spatial attributes of Lot Ukhiyaghona within the Ramu Upazila.
Geographic Shape and Boundaries
1. Shape Description
Lot Ukhiyaghona’s shape can be described in terms of its geometric form and spatial
orientation within Ramu Upazila. The area’s shape influences its land use, access, and
ecological characteristics.
General Outline: Lot Ukhiyaghona has an irregular, somewhat elongated shape with
distinct natural boundaries, including rivers and hill ranges. The shape is typically
defined by both man-made and natural features.
Orientation: The area is oriented along a northeast-southwest axis, with its longest
dimension stretching between these directions.
2. Boundary Description
The boundaries of Lot Ukhiyaghona are demarcated by a combination of natural and
administrative markers:
Northern Boundary: Defined by the edge of a series of hills, which separate it from
adjacent areas within Ramu Upazila.
Southern Boundary: Marked by a lowland plain, which merges into agricultural fields
and settlements.
Eastern Boundary: Follows the course of a local river, providing a natural delineation
from neighboring plots or villages.
Western Boundary: Characterized by a mix of residential areas and transitional zones
leading towards other parts of the Upazila.
Geospatial Characteristics
1. Topography
Elevation Variation: Lot Ukhiyaghona includes a range of elevations, from low-lying
plains near the river to elevated hilltops. This variation affects drainage, land use, and
ecological zones within the area.
Slope and Aspect: The slopes range from gentle in the plains to steep in the hilly
regions, with various aspects influencing microclimates and vegetation types.
2. Land Use and Land Cover
Agricultural Zones: Typically found in the flatter, lower elevation areas, where the
shape of the land allows for larger, more contiguous fields.
Residential Areas: Scattered mainly along the lower slopes and flatter regions,
providing easier access to roads and services.
Forested and Natural Areas: Located primarily on the steeper slopes and higher
elevations, where the terrain is less suitable for agriculture or development.
Water Bodies: Include Rivers, streams, and ponds that follow the natural depressions
and valleys, often aligning with the shape of the land.
Maps and Visuals
A. Topographic Map
A topographic map would show the contour lines indicating the elevation changes
across Lot Ukhiyaghona, highlighting the shape and relief of the land.
Key features such as hilltops, valleys, and watercourses would be clearly marked,
providing a detailed view of the area's terrain.
B. Land Use Map
A land use map would illustrate the different types of land cover within Lot
Ukhiyaghona, such as agricultural fields, forests, and settlements.
This map would help in understanding how the shape of the area influences its
utilization.
C. Boundary Map
A boundary map would outline the administrative limits of Lot Ukhiyaghona within
Ramu Upazila.
It would show the precise demarcations based on natural landmarks and administrative
records.
3.7 Size
This section provides detailed information about the total area, comparative size, and
implications of the size of Lot Ukhiyaghona within the context of Ramu Upazila and Cox's
Bazar District.
Total Area of Lot Ukhiyaghona
Lot Ukhiyaghona covers an estimated area of approximately 2.5 square kilometers (250
hectares or 617 acres). This estimation provides a foundational understanding of the spatial
extent of the region.
Comparative Size
To put Lot Ukhiyaghona's size into perspective, consider the following comparisons:
1. Local Comparison:
o Within Ramu Upazila: Ramu Upazila covers an area of about 487.9 square
kilometers (188.4 square miles). Lot Ukhiyaghona, at 2.5 square kilometers,
represents a small but significant part of this Upazila.
o Neighboring Areas: Compared to adjacent areas or villages within Ramu
Upazila, Lot Ukhiyaghona’s size is typical for a local administrative unit but
can vary widely in terms of population density and land use.
2. District-Level Comparison:
o Cox's Bazar District: The district spans approximately 2,492 square kilometers
(962 square miles). Lot Ukhiyaghona’s area is a tiny fraction of the district,
emphasizing its role as a local entity within the larger regional context.
3. Global Land Use Comparison:
o Urban Neighborhoods: In urban terms, Lot Ukhiyaghona’s 2.5 square
kilometers is roughly equivalent to the size of a medium-sized urban
neighborhood or a small town in many parts of the world.
o Agricultural Estates: In rural contexts, the area can be compared to a large
agricultural estate or a small village.
Detailed Size Breakdown
To better understand the distribution of land within Lot Ukhiyaghona, it is useful to break down
the area into its primary land use categories:
1. Agricultural Land:
o Accounts for approximately 60% of the total area, covering about 1.5 square
kilometers (150 hectares or 370 acres).
o Dominated by rice paddies, vegetable plots, and orchards.
2. Residential and Settlements:
o Comprises around 20% of the area, about 0.5 square kilometers (50 hectares or
123 acres).
o Includes villages, homesteads, and related infrastructure.
3. Forests and Natural Vegetation:
o Occupies about 15% of the total area, approximately 0.375 square kilometers
(37.5 hectares or 93 acres).
o Found mainly in the hilly and less accessible parts of the region.
4. Water Bodies and Wetlands:
o Make up around 5% of the area, or about 0.125 square kilometers (12.5 hectares
or 31 acres).
o Includes rivers, streams, ponds, and seasonal wetlands.
Altitude
160
140
120
100
80
60
40
20
0
21
116
1
6
11
16
26
31
36
41
46
51
56
61
66
71
76
81
86
91
96
101
106
111
121
126
131
136
Analysis: The y-axis shows the altitude in feet, while the x-axis appears to show distance in
unspecified units. The data points themselves are difficult to discern exactly from the image,
but we can see some general trends. The altitude appears to generally increase as the distance
increases. This suggests that the land is on an incline.There are some fluctuations in the altitude
throughout the graph. This could indicate that the land level is not perfectly uniform, but rather
has some ups and downs.
Soil colour
2.5Y
2.5YR
5Y
5R
5YR
7.5Y
7.5YR
10Y
10YR
Analysis: The given pie chart represents the soil colour of 2101-2237 plot in Lotukhiyagona,
Ramu Upazilla, Coxsbazar. Here we can see that the Lotukhiyagonas soil colour is mainly
10YR categories which represents the brown colour of the top soil. The brown colour suggests
the presence of organic matter indicating good soil and fertility. Then the 2.5Y and 7.5YR
represents the yellowish brown colour of the subsoil indicates less organic matter that suggests
good drainage conditions and a well oxidised environment. The transition from darker topsoil
to lighter subsoil is typical and reflects the natural stratification of soil horizons.
4.2: Impact of land use and land cover changes on socio economic components
Discussion comment
200
150
95 100
100 86
43 38.9
50 30
13.6 10 4.5
0
16-30 31-45 46-60 61 and above Total
Analysis: Our total respondent is 221.From 221 people, we can see that among them 95 people
age concentrated in 16-30 age group and the percentage is 43% .After that 38.9% people, it
means 86 people are in 31-45 age group and the lowest frequency noticed in 61 and above is
4.5% and the frequency is 10.
Gender of the respondent
Male
28%
Female
72%
Analysis: We can notice that among 221 peoples gender frequency table about 72.4% are
female, their frequency is 160 and cumulative frequency is 27.6% again the frequency of male
is 61, percentage is about 27.6% and frequency is 61.
Educational Qualification
100
47.5
31.2
19
1.4 0.5 0.5
ILLITERATE
PRIMARY
HSC/EQUIVALENT
TOTAL
VOCATIONAL
SSC/EQUIVALENT
Analysis: This frequency table is about educational qualification of the respondents. Among
221 respondents we can see that up to primary level 105 and the percentage is 47.5%, the
second highest frequency is 69 and 31.2% are illiterate. Again among 221 respondents 42
people are SSC or equivalent, 3 HSC and equivalent, 1 BSc/MSc and 1 vocational .
200
150
100
50
0
Single Married Divorced Widow Total
Analysis: From this bar diagram we can notice that it shows marital status of the respondents.
From our total respondent 195 are married and the frequency bis highest and it is 82.2%, 14
people are single ,3 are divorced and 9 are widow and their percentage are respectively 6.3%
,1.4% and 4.1%.
Religion Percent
RELIGION PERCENT
100
90
80
70
60
50
40
30
20
10
0
Religion Percent 83.7 2.7 13.6 100
Analysis: This pie chart shows the religion of the respondents among 221 people most of their
religion is Islam and the frequency is 185 percentage is 83.7%. Again, Hindu respondents
frequency and percentage are respectively 6 and 2.7% again among them 30 people follow
Buddhism and frequency is 13.6%.
What types of LULC changes you have seen in your surroundings in the last 5 years
LULC Changes
Increase Decrease No change
200 190
180
160
133 136
140
120
96
100
75 71
80
55 54
60
40 33
26
20 5 10
0
Build-up area Water bodies Hills/Upland Agricultural land
Analysis: The above frequency table indicate last five years types of LULC changes of the
area. Among 221 respondents 190 people response about the increase of build up area and the
percentage is 86%. The highest frequency about no changes in land use are bare land, water
bodies, agricultural land , vegetation and their frequencies are 133,96,131,86 and their
percentage respectively are 60.2%,43.4%,59.4%, 38.9%. The frequency of the respondents
responses about the decrease of Hills and forest cover 136,125 respectively their percentages
are 61.5%,56.6%.
Analysis: The above Bar diagram shows how has LULC changed in our study area such as
there increase hill to settlement on the basis of the response of the respondent about 199 people
and percentage is 90%. Most of the highest frequency is no changes are water to bare land ,
water to settlement, vegetation to water , water to vegetation, vegetation to settlement,
vegetation to bare land , settlement to water, settlement to bare land , bare land to settlement,
agricultural changes.
What is the main anthropogenic stresses in your locality?
Anthropogenic stresses
600 120.00%
500 100.00%
400 80.00%
300 60.00%
200 40.00%
100 20.00%
0 0.00%
Analysis: In our study area there are some anthropogenic stresses. The major stress is tree
cutting ,the percentage is 27.7% based on 158 people responses, after that hill cutting is a
serious problem again soil erosion and deforestation are one of the major stresses. Other are
minor as we see the frequencies and the percentages such as unusual agricultural practices,
industrial activities, forest resource depletion, and excessive water use.