[1]张宁,田美荣,高吉喜,等.近35年科尔沁沙地生态系统健康诊断研究——以巴林右旗为例[J].水土保持研究,2016,23(04):206-211.
　ZHANG Ning,TIAN Meirong,GAO Jixi,et al.Studies on Diagnosis of Ecosystem Health Nearly 35 Years in Horqin Sandy land—A Case Study in Balinyouqi[J].Research of Soil and Water Conservation,2016,23(04):206-211.
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近35年科尔沁沙地生态系统健康诊断研究——以巴林右旗为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年04期 页码: 206-211 栏目: 出版日期: 2016-08-28
Title:
Studies on Diagnosis of Ecosystem Health Nearly 35 Years in Horqin Sandy land—A Case Study in Balinyouqi
作者:
张宁1,2, 田美荣2, 高吉喜2, 钱金平1
1. 河北师范大学 资源与环境科学学院, 石家庄 050024;
2. 环境保护部南京环境科学研究所, 南京 210042
Author(s):
ZHANG Ning1,2, TIAN Meirong2, GAO Jixi2, QIAN Jinping1
1. College of Resources and Environmental Science, Hebei Normal University, Shijiazhuang 050024, China;
2. Nanjing Institute of Environmental Science, Ministry of Environmental Protection, Nanjing 210042, China
关键词:
科尔沁沙地; 生态系统健康; 熵权法
Keywords:
Horqin Sandy Land; ecosystem health; entropy weight method
分类号:
X171.1
摘要:
干旱区沙地生态系统健康状况不仅决定其所提供生态服务大小，也决定着区域生态安全等级。因此，开展生态系统健康诊断，对摸清生态系统本底值，进而提高生态修复效率具有重要意义。以科尔沁沙地源头巴林右旗为研究对象，运用PSR模型构建生态系统健康诊断指标体系，将熵权法与综合评价法有机结合，确定了研究区生态系统健康指标权重和综合健康状况，并对研究区生态系统健康进行了分级诊断。结果显示：所选指标中围封草场面积的覆盖率熵权值Wj=0.0655为最大值，表明围封草场面积是影响沙地生态系统健康的最主要指标。还发现近35 a中有32 a科尔沁沙地处于生态系统亚健康状态，1982年、2009年、2010年处于不健康状态。这主要在于生态系统健康和状态指标呈正相关，人类活动可以辅助生态系统健康状态的恢复，同时，过度干扰生态系统的结构状态将影响生态系统的健康状况。
Abstract:
The health condition of arid sandy ecosystem determines not only the size of the ecological services they provide, but also the level of regional ecological security. Therefore, carrying out ecosystem health diagnosis is of great importance to the background value of ecosystem and to the increase of ecological restoration efficiency. We took Balinyouqi of Horqin Sandy Land as research site, used PSR model to construct the index system of ecosystem health diagnosis, and determine the ecosystem health index and overall health condition of the study area with the combination of entropy method and comprehensive evaluation method. And we also diagnosed the ecosystem health of the study area at different levels. The results show that the coverage rate of the enclosed grassland area in the selected index reaches to a maximum (0.065 5), indicating that the area of enclosed pasture is the main indicator influencing the health of sandy ecosystem. It also finds that in the recent 35 years, the ecological system of Horqin Sandy Land has been in the sub-healthy state for 32 years and was in unhealthy state in 1982, 2009 and 2010, which results from that the ecosystem health and state indexes are positively correlated. Human activities can assist the recovery of ecosystem health while excessive interference of ecosystem structure will affect the ecosystem health.

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备注/Memo

收稿日期:2015-06-23;改回日期:2015-07-23。
基金项目:国家环境保护公益性行业科研专项项目“重要生态功能区退化生态系统生态修复模式研究与应用”（201409055）；中央级公益性科研院所基本科研业务专项“基于生态保护红线的生态廊道构建技术研究”
作者简介:张宁(1989-),女,河北邢台人,硕士研究生,主要从事区域生态与恢复等方面的研究。E-mail:zhangning1989zhxy@126.com
通讯作者:田美荣(1981-),女,内蒙古鄂尔多斯人,副研究员,博士,主要从事区域生态与恢复等方面的研究工作。E-mail:tianmeirong007@163.com

更新日期/Last Update: 1900-01-01