Spatial Distribution of Soil Erosion Analyzed Based on GIS and RUSLE in Yulin City

LI Kui; YUE Da-peng; LIU Peng; YI Lang

doi:10.13961/j.cnki.stbctb.2014.06.039

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Spatial Distribution of Soil Erosion Analyzed Based on GIS and RUSLE in Yulin City

- Spatial Distribution of Soil Erosion Analyzed Based on GIS and RUSLE in Yulin City
- Bulletin of Soiland Water Conservation Vol. 33, Issue 6, Pages: 172-178(2014)
- 作者机构：
  
  陕西师范大学旅游与环境学院,陕西,西安,710062
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.06.039
  CLC：
- Published：2014
- 稿件说明：
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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：

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.

摘要

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

·a)

年均侵蚀总量为1.93×10

t;2010年的平均土壤侵蚀模数为6237 t/(km

·a)

年均侵蚀总量为2.72×10

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。

Abstract

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.

关键词

Keywords

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