Impact of Future Land Use Change and Climate Change on Soil Erosion by Using Remote Sensing and GIS Techniques: A case of Lam Phra Phloeng Watershed, Nakhon Ratchasima, Thailand

Name: Jagarapu Harsha Sai Chandra Meher

ID: – 

Title: Impact of Future Land Use Change and Climate Change on Soil Erosion by Using Remote Sensing and GIS Techniques: A case of Lam Phra Phloeng Watershed, Nakhon Ratchasima, Thailand

Type: Thesis


Soil erosion has been an environmental concern all over the world. Soil loss ismainly due to direct impact of climatic change and indirect impact of land usechange which are the causes of soil erosion. The impacts of future climatechange, ranging from changes in precipitation characteristics and temperaturehave a serious effect on soil erosion. Different type of soil erosion models(theoretical or physically based models and empirical models) are used fordifferent type of erosions. RUSLE, an empirical based model along with thesedimentation modelling is used to estimate the soil loss in this study.Different Global climatic model (GCMs) by using Qunatile Mapping Technique, astatistical downscaling was used to study about the future impact of climaticchange in the area. CA-Markov model technique is used to estimate the future landuse change. Integration of remote sensing and Geographic information system(GIS) data for the soil erosion modelling estimates the soil erosion precisely.Information obtained from Remote Sensing (RS) is used to integrate with GIStools in specifying a particular soil erosion model and are used in frameworksupports for decision makers in preparing more accurate spatial maps in lesstime and cost. Different patterns, trends and rates are used to analyse theinformation to fulfil the goals of soil erosion studies. The study obtained theresults of a maximum erosion of 881.48 ton/ha/year and 1145.92 ton/ha/year forthe year 2000 and 2014 using RUSLE model. Impact of soil erosion is calculatedthrough Climatic change and also the land use change in the next step. Combinedimpact of Climate change and Land use change in future have a higher erosionvalues when compared with the impact of rainfall has a low erosion values. Soilerosion values are increased up to a maximum of 1545, 1688 and 1823 tons/ha/yearin 2040, 2070 and 2099. So there is a significant increase in soil erosionproblem throughout the Near, Mid and Far future along with the climate and theland use change in the watershed. Adoptive measures and conservation techniquesare proposed to implement in the study area to decrease thee impact of soilerosion risk.

Keywords: Remote Sensing, Soil Loss, Soil Erosion,RUSLE, Climate Change, GCMs, Quantile Mapping, CA-Markov, Future Prediction

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