青藏高原生态屏障区生态环境综合评价方法探讨

Discussion on the Method of Ecotope Comprehensive Evaluation for Tibet Plateau Ecological Shelter Zone

首先,从生态环境评价的内涵出发,根据青藏高原生态屏障区自然生态环境特点,探讨了青藏高原生态屏障区生态环境综合评价方法,包括评价指标体系建立及各指标权重确定、评价单元选择、评价数学模型研究等;然后,利用第一次全国地理国情普查成果及多种专题资料,客观地对青藏高原生态屏障区生态环境质量进行了综合评价;最后,对评价结果进行分析,指出了青藏高原生态屏障区生态环境及其保护中的一些问题。

Starting from the connotation of ecological environment evaluation, and according to the characteristics of natural ecological environment of Tibet Plateau ecological shelter zone, this paper discusses the methods of ecotope comprehensive evaluation for Tibet Plateau ecological shelter zone, which include evaluation index system establishment and index weight determination, evaluation unit selection,evaluation mathematical model research,etc.Then,the ecological environment quality of Tibet Plateau ecological shelter zone is evaluated objectively by using the general survey results of first national geographic conditions and various thematic data.Finally, the evaluation results are analyzed, and some ecological environment problems of Tibet Plateau ecological shelter zone and its protection are pointed out.