Temporal and Spatial Variations of Soil Conservation Service Function in Yangtze River Economic Belt

WU Dan; ZOU Changxin; LIN Naifeng; CAO Wei

doi:10.13961/j.cnki.stbctb.2018.05.023

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Temporal and Spatial Variations of Soil Conservation Service Function in Yangtze River Economic Belt

- Temporal and Spatial Variations of Soil Conservation Service Function in Yangtze River Economic Belt
- Bulletin of Soiland Water Conservation Vol. 38, Issue 5, Pages: 144-148(2018)
- 作者机构：
  
  1. 环境保护部南京环境科学研究所,江苏,南京,210042
  2. 中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室,北京,100101
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.05.023
  CLC： S157
- Published：2018
- 稿件说明：
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WU Dan, ZOU Changxin, LIN Naifeng, et al. Temporal and Spatial Variations of Soil Conservation Service Function in Yangtze River Economic Belt[J]. Bulletin of Soiland Water Conservation, 2018, 38(5): 144-148.
DOI：

WU Dan, ZOU Changxin, LIN Naifeng, et al. Temporal and Spatial Variations of Soil Conservation Service Function in Yangtze River Economic Belt[J]. Bulletin of Soiland Water Conservation, 2018, 38(5): 144-148. DOI： 10.13961/j.cnki.stbctb.2018.05.023.

摘要

[目的

]

分析长江经济带2010—2015年坡面土壤保持服务功能的时空格局及其变化特征。[方法

]

采用修正的通用水土流失方程（RUSLE）分析长江经济带剖面土壤保持服务功能变化。[结果

]

2010—2015年，长江经济带年均剖面土壤保持量为1.88×10

t/a，单位面积土壤保持量为91.54 t/（hm

·a）。森林、草地、农田生态系统的单位面积坡面土壤保持量依次为129.09，111.47，40.38 t/（hm

·a）。5 a间，长江经济带坡面土壤保持服务功能总体呈现上升态势。国家级优化开发区、重点开发区、农产品主产区和重点生态功能区的坡面土壤保持服务功能依次增强。[结论

]

森林、草地、农田生态系统的坡面土壤保持能力依次降低。主体功能区战略的实施对于提升长江经济带生态安全保障能力具有重要意义。

Abstract

[Objective] The temporal and spatial variations of soil conservation service function of the Yangtze River economic belt from 2010 to 2015 were analyzed.[Methods] The revised universal soil loss equation (RUSLE) was used to analyze the soil conservation service function.[Results] The average amount of annual soil conservation was 1.88×1010 t/a

and the soil holding volume per unit area was 91.54 t/(hm2·a) during the study period. The soil holding volume per unit area of forest

grassland and farmland ecosystem was 129.09

111.47 and 40.38 t/(hm2·a)

respectively. The soil conservation service function of the Yangtze River economic belt showed an upward trend from 2010 to 2015. The service functions of slope soil in the national optimal development zone

key development zones

agricultural production zones and key ecological function zones was enhanced.[Conclusion] Soil conservation capacity of forest

grassland and farmland decreased in sequence. The implementation of major function oriented zoning strategy was significant in improving the ecological security capability of the Yangtze River economic belt.

关键词

Keywords

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