太湖流域生态系统健康的空间分异及其动态转移
Spatial Variation and Dynamics of Ecosystem Health in the Taihu Lake Watershed
查看参考文献20篇
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文摘
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根据研究地域的生态特征, 综合考虑流域内生态系统相互影响机制, 结合遥感解译、野外调查及社会统计等多源数据, 运用PSR模型从胁迫因子、状态因子以及效应因子三方面构建了流域生态系统健康评价指标体系, 对太湖流域综合生态健康进行评价, 并对其空间分异及动态转移特征进行深入分析. 结果表明: 2000年-2008年间, 研究区域生态系统健康状况整体处于亚健康水平, 区域综合生态健康指数由2000年的0.584下降至2008年的 0.512, 有92%的区域综合生态健康指数呈下降态势. 生态健康存在明显区域性差异, 整体呈现由东北至西南逐渐下降的趋势. 生态健康状态较好的区域主要集中在西南部苕溪流域的安吉县、德清县及长兴县一带, 而生态健康较差的区域主要分布于东北部的无锡市区和常州市区 |
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其他语种文摘
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Based on ecological characteristics of the Taihu Lake watershed,the authors synthetically considered mechanisms of the interactions among ecosystems in the watershed.Using multiple scenes of Landsat Thematic Mapper(TM)imageries,land use/cover data,field investigation data,and social statistic data within the framework of the Pressure-State-Response(P-S-R)model,we constructed a comprehensive assessment index system about ecosystem health, evaluated the ecological health of the Taihu Lake watershed,as well as analyzed the spatial variation and dynamics of ecosystem health.Results showed that during the period 2000-2008,the ecosystem health maintained a subhealthy level as a whole.The comprehensive ecological health index decreased from 0.584 to 0.512,with showing a decreasing comprehensive ecological health index across almost 92%of the study area.Areas with better,moderate,and worse health conditions accounted for 14.29%,71.43%,and 14.29%of the total area,respectively.There were no areas with the best health conditions.Ecological health for about 28.57%of the area changed from a better condition to a moderate or a worse one.This might be related to increases in external pressures as well as the degradation of the resilience and structure of the ecosystem.The spatial distribution of ecological health exhibited obviously regional differences,with suggesting that the comprehensive ecological health index decreased from the northeast to the southwest. Southwestern regions,containing Anji County,Deqing County,and Changxing County,all showed better ecological health conditions.Human activities and population pressures over these regions showed less influence on the ecological health status and a strong primary productivity.This implied a reasonable structure of the ecosystem.The resilience was generally higher than other regions.Ecosystems showed a multitude of functions such as water conservation and purification. Northeastern areas generally showed a worse ecological health condition,including Wuxi and Changzhou Cities.Ecosystems across these regions were being faced with great pressures resulting from human activities |
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来源
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资源科学
,2011,33(2):201-209 【核心库】
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关键词
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流域
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生态系统
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健康
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评价
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太湖
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地址
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1.
中国科学院南京地理与湖泊研究所, 南京, 210008
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江西省水利科学研究院, 南昌, 330029
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-7588 |
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学科
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能源与动力工程 |
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基金
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国家重大科技专项
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湖泊流域生态系统观测技术体系及风险评估
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文献收藏号
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CSCD:4130719
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参考文献 共
20
共1页
|
|
1.
宋长青. 湖泊及流域科学研究进展与展望.
湖泊科学,2002,14(4):289-300
|
被引
7
次
|
|
|
|
|
2.
刘永. 湖泊-流域生态系统管理的内容与方法.
生态学报,2007,27(12):5352-5360
|
被引
25
次
|
|
|
|
|
3.
Rapport DJ. What constitutes ecosystem health.
Perspectives in biology and medicine,1989,33(1):120-132
|
被引
111
次
|
|
|
|
|
4.
Rapport DJ. Assessing ecosystem health.
Trends in Ecology&Evolution,1998,13(10):397
|
被引
225
次
|
|
|
|
|
5.
Schaeffer DJ. Kerster HW.Ecosystem health:I. Measuring ecosystem health.
Environmental Management,1988,12(4):445-455
|
被引
86
次
|
|
|
|
|
6.
张晓萍. 流域健康诊断指标----一种生态环境评价的新方法.
水土保持通报,1998,18(4):57-62
|
被引
23
次
|
|
|
|
|
7.
陈铭. 基于GIS的蛟流河流域湿地生态系统健康评价.
农业系统科学与综合研究,2006,22(3):165-168
|
被引
10
次
|
|
|
|
|
8.
戴全厚. 侵蚀环境小流域生态经济系统健康定量评价.
生态学报,2006,26(7):2219-2228
|
被引
21
次
|
|
|
|
|
9.
蒋卫国. 辽河三角洲湿地生态系统健康评价.
生态学报,2005,25(3):408-414
|
被引
104
次
|
|
|
|
|
10.
吴炳方. 基于遥感信息的流域生态系统健康评价——以大宁河流域为例.
长江流域资源与环境,2007,16(1):102-106
|
被引
16
次
|
|
|
|
|
11.
罗跃初. 流域生态系统健康评价方法.
生态学报,2003,23(8):1606-1614
|
被引
73
次
|
|
|
|
|
12.
李春晖. 流域生态健康评价理论与方法研究进展.
地理科学进展,2008,27(1):9-17
|
被引
25
次
|
|
|
|
|
13.
张凤玲. 城市河湖生态系统健康评价——以北京市“六海”为例.
生态学报,2005,25(11):3019-3027
|
被引
34
次
|
|
|
|
|
14.
许文杰. 湖泊生态系统健康评价的熵权综合健康指数法.
水土保持研究,2008,15(1):125-127
|
被引
18
次
|
|
|
|
|
15.
米文宝. 宁夏沙湖水生生态系统健康评估.
生态学杂志,2007,26(2):296-300
|
被引
15
次
|
|
|
|
|
16.
麦少芝. PSR模型在湿地生态系统健康评价中的应用.
热带地理,2005,25(4):317-321
|
被引
53
次
|
|
|
|
|
17.
王治良. 洪泽湖湿地生态系统健康评价指标体系探讨.
中国生态农业学报,2007,15(6):152-155
|
被引
23
次
|
|
|
|
|
18.
鲁绍伟. 北京市八达岭林场森林生态系统健康性评价.
水土保持学报,2006,20(3):79-82
|
被引
50
次
|
|
|
|
|
19.
陈高. 森林生态系统健康评估Ⅱ.案例实践.
应用生态学报,2005,16(1):1-6
|
被引
19
次
|
|
|
|
|
20.
刘明华. RS和GIS支持下的秦皇岛地区生态系统健康评价.
地理研究,2006,25(5):930-938
|
被引
37
次
|
|
|
|
|
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