Spatial Distribution Characteristics of Soil Erosion and Spatial Division of Management and Control in Xi’an

LIU Gang; LI Peng; ZHANG Xu; LI Zhanbin; HE Wenhong; HUO Chunping; SHI Peng; MA Yongyong; XIE Mengyao

doi:10.13870/j.cnki.stbcxb.2020.03.015

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Spatial Distribution Characteristics of Soil Erosion and Spatial Division of Management and Control in Xi’an

更新时间：2025-03-12

- Spatial Distribution Characteristics of Soil Erosion and Spatial Division of Management and Control in Xi’an
- Vol. 34, Issue 3, Pages: 91-97(2020)
- 作者机构：
  
  1. 西安市水利水土保持工作总站,西安,710016
  2. 西安理工大学西北旱区生态水利国家重点实验室,西安,710048
  3. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.03.015
  CLC： S157.1
- Published：2020
- 稿件说明：
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LIU Gang, LI Peng, ZHANG Xu, et al. Spatial Distribution Characteristics of Soil Erosion and Spatial Division of Management and Control in Xi’an[J]. 2020, 34(3): 91-97.
DOI：

LIU Gang, LI Peng, ZHANG Xu, et al. Spatial Distribution Characteristics of Soil Erosion and Spatial Division of Management and Control in Xi’an[J]. 2020, 34(3): 91-97. DOI： 10.13870/j.cnki.stbcxb.2020.03.015.

摘要

城镇规模的快速发展是引发城市水土流失的关键因素。以西安市为研究区域，计算了各区县土壤侵蚀面积并进行了强度等级划分，分析了水土流失在空间上的分布特征并进行预测，识别出需要重点监管的区域。结果表明：西安市年均土壤侵蚀量为278.49万t，年均土壤侵蚀模数为176.74 t/（km2·a），微度侵蚀和轻度侵蚀占总侵蚀面积的99.76%，中度侵蚀以上面积仅占0.24%；未来情景下西安市各区域土壤侵蚀模数主要分布在0~200 t/（km2·a），其中建成区和发展区土壤侵蚀面积分别为65.37，302.19 km2；水土流失空间管控与重点区域主要分布在高陵区、鄠邑区、长安区和临潼区等地区。随着城市建设与发展的完善，西安市重点管控区的面积也在发生变化。

Abstract

The rapid development of urban scale is the key factor that causes urban soil erosion. Taking Xi’an as the research area

the soil erosion area of each district and county was calculated and the intensity grade was divided

the spatial distribution characteristics of soil erosion were analyzed and predicted

and the areas requiring key supervision were identified. The results showed that the annual average amount of soil erosion in Xi’an was 2.784 9 million tons

the annual average soil erosion modulus was 176.74 t/(km2·a)

the total area of micro-erosion and light erosion was 99.76%

and the area above moderate erosion was only 0.24%. Under the future scenario

the soil erosion modulus in Xi’an are mainly distributed in 0 to 200 t/(km2·a)

of which the soil erosion area of the built-up area and the development area is 65.37 and 302.19 km2 respectively;The spatial control and key areas of soil erosion are mainly distributed in Gaoling District

Huyi District

Chang’an District

and Lintong District. With the improvement of urban construction and development

the area of Xi’an key management and control area is also changing.

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Keywords

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