Soil and Water Loss Change in Source Region of Yellow River During 1999-2018

Yin Baoku; Cao Xiayu; Zhang Jianguo; Zhang Dong; Wang Xiaoyan

doi:10.13961/j.cnki.stbctb.2020.03.031

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Soil and Water Loss Change in Source Region of Yellow River During 1999-2018

- Soil and Water Loss Change in Source Region of Yellow River During 1999-2018
- Bulletin of Soiland Water Conservation Vol. 40, Issue 3, Pages: 216-220(2020)
- 作者机构：
  
  黄河流域水土保持生态环境监测中心,陕西,西安,710021
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.03.031
  CLC： S157.1
- Published：2020
- 稿件说明：
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Yin Baoku, Cao Xiayu, Zhang Jianguo, et al. Soil and Water Loss Change in Source Region of Yellow River During 1999-2018[J]. Bulletin of Soiland Water Conservation, 2020, 40(3): 216-220.
DOI：

Yin Baoku, Cao Xiayu, Zhang Jianguo, et al. Soil and Water Loss Change in Source Region of Yellow River During 1999-2018[J]. Bulletin of Soiland Water Conservation, 2020, 40(3): 216-220. DOI： 10.13961/j.cnki.stbctb.2020.03.031.

摘要

[目的

]

研究1999—2018年黄河源区土壤侵蚀强度等级变化及空间分布情况，为该区生态环境建设和水土流失治理提供数据支撑。[方法

]

利用1999，2011，2018年水土流失动态监测成果，开展黄河源区水土流失动态变化分析。[结果

]

黄河源区水土流失面积表现为先增加后减少，与1999年相比，2011年水土流失面积增加1.89×10

，增幅126%，2018年水土流失面积增加1.01×10

，增幅67.33%。从空间数据来看，与1999年相比，77.97%的区域土壤侵蚀强度等级未发生变化，19.33%的区域土壤侵蚀强度等级降低，2.7%的区域土壤侵蚀强度等级增加。[结论

]

水土流失面积增加主要与区域暖干化和人类活动引起的草场退化有关。应实施一批重大生态保护修复和建设工作，提升草场质量，改善区域生态环境。

Abstract

[Objective] The dynamic changes of soil erosion intensity and its spatial distribution in the source region of the Yellow River during 1999-2018 were studied to provide data for ecological environment construction and soil and water loss management in the region.[Methods] The dynamics of soil erosion in the region were analyzed based on the monitoring data in 1999

2011

and 2018.[Results] Compared with 1999

the areas of soil erosion increased to 1.89×104 and 1.01×104 km2 with an increase of 126% and 67.33% in 2011 and 2018

respectively

indicating that the area of soil erosion had increased in 2011 and then decreased until 2018. From 1999 to 2018

the area without any change in soil erosion intensity grade accounted for 77.97%

and the areas with decrease and increase in soil erosion intensity grade were 19.33% and 2.70%

respectively.[Conclusion] The increasing area of soil and water loss can be attributed to climate warming and drought

and grassland degradation was caused by unreasonable human activities. A number of major ecological protection

restoration and construction work should be carried out to improve the quality of degraded grassland and regional ecological environment.

关键词

Keywords

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