区域生态承载力预警评估方法及案例研究

发布时间：2018-12-05 21:48

【摘要】：本文针对国家资源环境承载能力监测预警评估中生态承载力评估的需求,探讨了生态承载力及预警的定义与内涵,从预警角度提出区域生态承载力评价的内容与方法,并以京津冀地区为例开展了案例研究。主要结论为:生态承载力是指生态系统提供服务功能、预防生态问题、保障区域生态安全的能力。生态承载力预警评估的实质是评估人类活动是否及在多大程度上影响生态系统在水源涵养、水土保持、防风固沙等主要服务功能的提供,是否产生了生态环境问题,是否影响到区域的生态安全。其评价流程主要包括:区域生态承载力评价指标选取及评价方法和阈值的确定、生态承载力预警状况及变化趋势分析、成因解析等内容。本文提出的生态承载力预警评价的方法及案例,可为全国及区域生态承载力的评估提供基础。
[Abstract]:In this paper, the definition and connotation of ecological carrying capacity and its early warning are discussed, and the contents and methods of regional ecological carrying capacity evaluation are put forward from the angle of early warning, according to the needs of ecological carrying capacity assessment in the monitoring and early warning of national resources and environment carrying capacity. And take Beijing, Tianjin and Hebei as an example to carry out a case study. The main conclusions are as follows: ecological carrying capacity refers to the ability of ecosystem to provide service, prevent ecological problems and ensure regional ecological security. The essence of early warning assessment of ecological carrying capacity is to assess whether and to what extent human activities affect the provision of major service functions such as water conservation, soil and water conservation, wind and sand prevention and so on, and whether or not ecological and environmental problems arise. Whether to affect the ecological security of the region. The evaluation process mainly includes the selection of regional ecological carrying capacity evaluation index, the determination of evaluation method and threshold, the analysis of ecological carrying capacity warning situation and trend, and the analysis of the cause of formation, etc. The method and case of early warning evaluation of ecological carrying capacity presented in this paper can provide the basis for the assessment of ecological carrying capacity of the whole country and the region.
【作者单位】：中国科学院生态环境研究中心城市与区域生态国家重点实验室;中国科学院大学;
【基金】：中国科学院科技服务网络计划项目(KFJ-STS-ZDTP-022)~~
【分类号】：X826

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