甘南黄河重要水源补给生态功能区生态脆弱性评价及其成因分析

魏金平; 李萍

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甘南黄河重要水源补给生态功能区生态脆弱性评价及其成因分析

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- 甘南黄河重要水源补给生态功能区生态脆弱性评价及其成因分析
- Ecological Frangibility and Its Formation Cause of Important Water-supply Ecological Function Area of Yellow River in South Gansu Province
- 水土保持通报 2009年28卷第1期页码：174-178
- 作者机构：
  
  甘肃省林业调查规划院,甘肃,兰州,730020
- 作者简介：
- 基金信息：
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- 纸质出版：2009
- 稿件说明：
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魏金平, 李萍. 甘南黄河重要水源补给生态功能区生态脆弱性评价及其成因分析[J]. 水土保持通报, 2009,28(1):174-178.

WEI Jin-ping, LI Ping. Ecological Frangibility and Its Formation Cause of Important Water-supply Ecological Function Area of Yellow River in South Gansu Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 174-178.
魏金平, 李萍. 甘南黄河重要水源补给生态功能区生态脆弱性评价及其成因分析[J]. 水土保持通报, 2009,28(1):174-178. DOI：

WEI Jin-ping, LI Ping. Ecological Frangibility and Its Formation Cause of Important Water-supply Ecological Function Area of Yellow River in South Gansu Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 174-178. DOI：

摘要

甘南黄河重要水源补给生态功能区地处青藏高原的东北边缘

土地总面积为3.06×10

是干旱区生态环境变化的敏感地区。该区曾被誉为"黄河蓄水池"的玛曲湿地趋于干涸

生态环境十分脆弱。在分析甘南黄河重要水源补给生态功能区的生态现状的基础上

依据有关生态脆弱性评价方法

结合天然草地分布的实际状况

建立生态脆弱性评价体系

对该区的草地生态环境进行了综合评价。评价结果表明

甘南黄河重要水源补给生态功能区的生态环境均属于中度和强度脆弱范围。并就此分析了其原因

以期对生态环境的治理提供参考。

Abstract

The important water-supply ecological function area of Yellow River in South Gansu is located along the northeast edge of Qinghai-Tibet Plateau.It has the total area of 3057000hm2 and is a sensitive change zone of ecological environment in arid territory.The Maqu wetland

once honored as "the reservoir of the Yellow River"

tends to be dry up and its ecological environment becomes very fragile.Based on the present ecological situation and the distribution of natural pasture

an appraisal system of ecological frangibility in the area is established by using the related ecological fragility appraisal method and analyzing the meadow ecological environment.The ecological function area can be classified as a medium or serious fragile region.Finally

the causes of ecological fragility are analyzed.It is expected that the study may provide a reference to ecological environment protection.

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