干旱区生态环境知识资源中心(Arid): 基于PSR模型的旱区城市湿地生态安全评估

Arid

	基于PSR模型的旱区城市湿地生态安全评估
其他题名	Ecological security evaluation of urban wetland in arid China based on PSR model
	王荣军 1; 谢佘初 2; 张影 2; 潘峰 3; 王颖 3; 巩杰 2
来源期刊	生态科学
ISSN	1008-8873
出版年	2015
卷号	34 期号:3 页码:133-138
中文摘要	湿地是世界上具有独特结构与功能的生态系统,黑河流域湿地生态系统健康与安全对我国西北干旱区生态网络建设具有重要意义。选取黑河中游典型的城市湿地张掖北郊湿地为研究区,以Quick Bird(2009)影像、Google Earth遥感影像(2012)、地形图(1: 50000)、张掖市土地利用总体规划、环境保护规划以及环境监测等为数据源,基于压力-状态-响应框架模型,构建湿地生态安全评价指标体系,并运用层次分析法确定各指标权重,以综合指数法对湿地生态安全性进行了综合评价。研究结果表明:张掖北郊湿地面积增加明显,年增长率达0.17 km~2?a~(-1),湿地生态安全综合指数为0.580,处于中度安全状态;生态系统的主要服务功能尚能发挥,但个别生态压力已超出生态系统的承载能力,应加强张掖湿地的保护和管理。
英文摘要	Wetlands were the natural integration of aquatic and semi-aquatic organisms in a wet environment, and had the unique structure and function. Ecological security and health of Zhangye wetland in the Heihe Basin had played an important role not only in guiding how to improve the management level of wetland ecological environment, but also in constructing the ecological network in arid China. In this study, the wetland in the northern part of the Zhangye City was selected. Based on the remote sensing images of Quickbird of 2009 a and Google Earth of 2012 a, topographical map (1: 50000),map of general land use planning of Zhangye, map for environmental protection planning and the related environmental monitoring data, we built the wetland ecological security evaluation framework and evaluation indicators under the Pressure-Status-Response Model. The AHP was used to determine the weight of each indicator, and the synthetic index method was used to conduct a comprehensive evaluation for the wetland eco-security. The result showed that wetland area increased obviously with the growth rate of 0.17 km~2?a~(-1), and the ecological safety index of wetland was 0.580 during the period of 2009-2012, suggesting that its ecological safety state was medium currently. Although the main service function of wetland ecosystem could still work, the individual ecological pressure of wetland ecosystem had exceeded the carrying capacity of the ecosystem. Thus, proper management and conservation of Zhangye’s northern wetland are still needed to be improved in the future.
中文关键词	湿地 ; 生态安全评价 ; PSR模型 ; 张掖 ; 干旱区
英文关键词	wetland ecological security evaluation PSR Model Zhangye City arid area of china
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5447951
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233126
作者单位	1.贵州省煤矿设计研究院, 贵阳, 贵州 550025, 中国; 2.兰州大学, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国; 3.兰州大学环境影响评价中心, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	王荣军,谢佘初,张影,等. 基于PSR模型的旱区城市湿地生态安全评估[J]. 兰州大学,2015,34(3):133-138.
APA	王荣军,谢佘初,张影,潘峰,王颖,&巩杰.(2015).基于PSR模型的旱区城市湿地生态安全评估.生态科学,34(3),133-138.
MLA	王荣军,et al."基于PSR模型的旱区城市湿地生态安全评估".生态科学 34.3(2015):133-138.