Spatio-Temporal Analysis of Erosion Risk Assessment Using GIS-Based AHP Method: A Case Study of Doğancı Dam Watershed in Bursa (Türkiye)

被引:1
|
作者
Yuksel, Esin Erdogan [1 ]
Karan, Omer Faruk [1 ]
Akay, Abdullah Emin [1 ]
机构
[1] Bursa Tech Univ, Fac Forestry, Dept Forest Engn, TR-16310 Bursa, Turkiye
来源
FORESTS | 2024年 / 15卷 / 07期
关键词
soil erosion; GIS; AHP; land use change; watersheds; SOIL-EROSION; LAND-USE; RUNOFF GENERATION; AREAS; RUSLE; DEGRADATION; ERODIBILITY; DISTRICT; PROVINCE; MODEL;
D O I
10.3390/f15071135
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
Soil erosion, one of the most serious phenomena in watershed management, can be estimated based on various criteria. Land use change is one of the most important factors affecting the susceptibility of soil erosion. In this study, the effect of land use change on soil erosion risk in two plan periods (2005 and 2017) was investigated using Analytical Hierarchy Process (AHP) and Geographic Information Systems (GIS) for the forest planning units in the Do & gbreve;anc & imath; Dam Watershed, located in Bursa, T & uuml;rkiye. Eight criteria were evaluated including erosion-related slope, bedrock type, land use/land cover, precipitation, relative relief, aspect, drainage frequency, and density. According to the results, the most effective factor in soil erosion was slope (0.29), while bedrock type and land use/land cover ranked second with 0.19. It was found that full closure forests were characterized by high erosion resistance (0.3), while bare land was characterized as the most sensitive area to erosion (0.39). In terms of spatio-temporal changes in a 12-year period, the areas in the medium and high erosion risk decreased, while low and very low-risk areas increased. The ROC method showed a satisfactory accuracy of 72.8% and 80.2% for the 2005 and 2017 erosion risk maps, respectively.
引用
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页数:20
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