摘要
北大港湿地是天津市面积最大的滨海湿地,在保护生态环境、生物多样性以及调节气候等方面具有重要作用。本文基于对北大港湿地及周边生态地质环境条件的梳理,选取湿地水涵养状态、水文地质条件、水土环境质量、生物多样性以及人类工程活动等多个评价因子,利用傅勒三角形法确定各评价因子的权重,采用综合指数法对北大港湿地及周边生态地质环境脆弱性进行了综合评价。结果显示,北大港湿地及周边可划分为生态地质环境脆弱性高区、中等区和低区3个区,其中独流减河下游泄洪区西区、太平镇养殖区及沿海滩涂一带等处于生态地质环境脆弱性高区;独流减河河口处、万亩鱼塘、北大港水库大部分区域、钱圈水库、沙井子水库、子牙新河和北排水河等处于生态地质环境脆弱性中区;北大港水库西部和马厂减河一带处于生态地质环境脆弱性低区。
Beidagang Wetland is the largest coastal wetland in Tianjin.It plays an important role in protecting the ecological environment,biodiversity,and regulating climate.Based on the description of the Beidagang Wetland and the surrounding ecological geological environmental conditions,select multiple evaluation factors such as wetland water conservation status,hydrogeological conditions,water and soil environmental quality,biodiversity,and human engineering activities,etc,this paper used Fuller triangle to define the factor weight,And the comprehensive index method was used to comprehensively evaluate the fragility of the ecological geological environment of the Beidagang Wetland.The result shows that the whole region can be divided into three grade vulnerability sections,which are the high vulnerability section,the medium vulnerability section and the low vulnerability section,the western area of the flood discharge area in the lower reaches of the duliujian river,the breeding area of Taiping Town and the coastal area are in areas with high vulnerability section;duliujian river estuary,wanmu fish pond,most areas of beidagang reservoir,qianquan reservoir,shajingzi reservoir,ziyaxin river and beipaishui river are in the medium vulnerability section;the western part of beidagang reservoir and the machangjian river area are in the ow vulnerability section.
作者
董路阳
郭立君
程绪江
DONG Luyang;GUO Lijun;CHENG Xujiang(Tianjin Institute of Geological Survey,Tianjin 300191,China)
出处
《矿产勘查》
2021年第12期2458-2467,共10页
Mineral Exploration
基金
天津市国土资源和房屋管理局专项资金项目“滨海新区地下水及地质环境调查评价——滨海新区湿地地质环境调查”(国土房任[2015]1号)资助。
关键词
生态地质环境
脆弱性评价
北大港湿地
天津市
ecological geological environmenta
vulnerability assessment
Beidagang Wetland
Tianjin
