陕西师范大学 旅游与环境学院,陕西,西安,710062
纸质出版:2014
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李奎, 岳大鹏, 刘鹏, 等. 基于GIS与RUSLE的榆林市土壤侵蚀空间分布研究[J]. 水土保持通报, 2014,33(6):172-178.
LI Kui, YUE Da-peng, LIU Peng, et al. Spatial Distribution of Soil Erosion Analyzed Based on GIS and RUSLE in Yulin City[J]. Bulletin of Soiland Water Conservation, 2014, 33(6): 172-178.
李奎, 岳大鹏, 刘鹏, 等. 基于GIS与RUSLE的榆林市土壤侵蚀空间分布研究[J]. 水土保持通报, 2014,33(6):172-178. DOI: 10.13961/j.cnki.stbctb.2014.06.039.
LI Kui, YUE Da-peng, LIU Peng, et al. Spatial Distribution of Soil Erosion Analyzed Based on GIS and RUSLE in Yulin City[J]. Bulletin of Soiland Water Conservation, 2014, 33(6): 172-178. DOI: 10.13961/j.cnki.stbctb.2014.06.039.
利用3S技术
采用美国通用的水土流失方程(RUSLE)
对榆林市2001和2010年的土壤侵蚀状况及其空间分布特征进行了计算分析。结果表明
榆林市2001年平均土壤侵蚀模数为4411 t/(km
2
·a)
年均侵蚀总量为1.93×10
8
t;2010年的平均土壤侵蚀模数为6237 t/(km
2
·a)
年均侵蚀总量为2.72×10
8
t。2001-2010年榆林市各区县的土壤侵蚀变化状况有着明显的空间差异
府谷、神木、榆阳、横山、靖边、佳县和子洲7个区县的土壤侵蚀类型发生了由中强度向高强度侵蚀的转化
土壤状况不断恶化。而定边、米脂、吴堡、绥德和清涧5县的土壤侵蚀类型由高强度向低强度侵蚀转变
水土流失状况得到有效遏制。
Based on the technologies of 3S(RS
GPS and GIS) and universal soil loss equation(RUSLE)
soil erosion and its spatial distribution in Yulin City in 2001 and 2010 was calculated and analyzed. The results showed that mean soil erosion rate was 4411 t/(km2·a) and annual average sediment yield was 1.93×108 t in Yulin City in 2001
mean soil erosion rate was 6237 t/(km2·a) and annual average sediment yield was 2.72×108t in 2010. During the period from 2001 to 2010
there was an obvious spatial difference between various regions in the soil erosion change
the soil erosion intensity changed from medium to high in Fugu
Shenmu
Yuyang
Hengshan
Jingbian
Jiaxian and Zizhou County(District)
which indicated that soil condition deteriorated continuously. While
the soil erosion intensity changed from high to low in Dingbian
Mizhi
Wubu
Suide and Qingjian Counties
showing soil and water loss was effectively controlled.
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