OGFICE
Osaka Gas Foundation of International Cultural Exchange
Research Grant FY 2006/2007
FINAL REPORT
THE ANALYSIS OF THE LANDCOVER CHANGE EFFECT
TO SOIL EROSION USING SPATIAL MODELING AND ANALYSIS
(AS A KEY FOR LAND USE PLANNING
IN TELAGA WARNA CATCHMENT AREA)
Dr. Lilik Budi Prasetyo, M.Sc.
Yudi Setiawan, SP
Wim Ikbal, S.Hut, M.Sc
Environmental Spatial Analysis Laboratory Environmental Research Center Bogor Agricultural University (IPB)
Submitted To
Environmental Research Center
Bogor Agricultural University
For
Osaka Gas Foundation of International Cultural Exchange
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GENERAL INFORMATION
1. Title : The Analysis of the Landcover Change Effect to Soil
Erosion Using Spatial Modeling and Analysis (As A Key for Land Use Planning in Telaga Warna Catchment Area)
2. Principal Investigator
a. Name : Dr. Ir. Lilik Budi Prasetyo, MSc
b. Sex : Male
c. University : Bogor Agriculture University
d. Job Position : Head of Environmental Spatial Analysis Laboratory
Environmental Research Center, Bogor Agricultural Univ.
3. Members : 1. Yudi Setiawan, SP
2. Wim Ikbal, S.Hut, M.Sc
4. Locations : Telaga Warna, Bogor, Indonesia
Bogor, 10 December 2007
Head of Environmental Research
Center (PPLH IPB)
Prof. Dr. Dedi Soedharma, DEA
NIP.
xxxxxxxxxxxxx
Principal Investigator
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TABLE OF CONTENTS
I. INTRODUCTION ... 1
I.1. Background ... 1
I.2. Objectives ... 2
II. LITERATURE REVIEW ... 3
II.1. Factors and causes of land degradation ... 3
II.2. Potential Soil Loss Estimation Based on the Universal Soil Loss Equation .... 4
II.3. Remote Sensing Technique to Land Degradation Detection ... 5
III. MATERIALS AND METHOD ... 6
III.1. Time and Location of Study... 6
III.2. Equipment ... 6
III.3. Data ... 7
III.4. Methodology ... 8
III.5. Data Preprocessing ... 9
A. Geometric Correction ... 9
B. Atmospheric Correction ... 9
C. Relative Radiometric Normalization ... 9
D. DEM Generation ... 10
III.6. Data Processing ... 11
A. Watershed Delineation ... 11
B. Slope Classes and Length Generation ... 12
C. Classification Accuracy Analysis ... 13
D. Land Cover Change Analysis ... 15
III.7. Soil Erosion Analysis ... 15
IV. RESULTS AND DISCUSSION ... 18
IV.1. Topographic Normalization of LANDSAT Image ... 18
IV.2. Landscape and Soil Classification ... 18
IV.3. Land Cover Changes ... 20
IV.4. Accuracy Assessment of Image Classification ... 26
IV.5. Trend of Soil Erosion ... 27
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LIST OF TABLES
Table 3.1 Equipment used ... 7
Table 3.2 Satellite data ... 7
Table 3.3 Digital vector data ... 7
Table 3.4 Slope range and N/N exponent constant (Arsyad, 1989) ... 16
Table 4.1 a. Land cover changes form 1991 until 2006 ... 21
b. Trend of cover change from 1991 until 2006 ... 21
Table 4.2 Classification accuracy assessment report ... 26
Table 4.3 Calculation of soil erosion from 1991 until 2006 ... 28
Table 4.4 Relation of land cover change and very heavy class ... 30
LIST OF FIGURES
Figure 3.1 Time and location of study ... 6Figure 3.2 Overall image processing and analysis procedure ... 8
Figure 3.3 The process flow of atmospheric correction ... 10
Figure 3.4 Delineation process ... 11
Figure 3.5 Delineating catchments area ... 12
Figure 3.6 Possible accuracy categories of classification ... 13
Figure 3.7 Error matrix ... 13
Figure 4.1 Results of topographic normalization Landsat image ... 18
Figure 4.2 Landscape and soil classification ... 19
Figure 4.3 Description for soil type in study area ... 20
Figure 4.4 The rates of land cover conversion from 1991 until 2006 ... 22
Figure 4.5 Land conversion processes from 1991 until 2006 ... 23
Figure 4.6 Distributions of land cover from 1991 until 2006 ... 24
Figure 4.7 Trend of forest and built up cover change in three catchments area .... 25
Figure 4.8 Distribution of soil erosion rate from 1991 until 2006 ... 29
