近20a以来长江口生态监控区边滩湿地变化的研究  

Study on changes of foreshore wetland in ecology monitoring area of Yangtze River in 20 years

作　　者：张正龙[1] 徐韧[1] 范海梅[1] 

机构地区：[1]国家海洋局东海环境监测中心

出　　处：《海洋环境科学》2008年第A01期5-8,22,共5页Marine Environmental Science

基　　金：国家908专项成果集成项目(908-ZC-Ⅱ-03)

摘　　要：根据2004年以来长江口生态监控区边滩湿地业务化监测工作，介绍了监测的方法和监测结果，并对长江口生态监控区边滩湿地的变化趋势进行了研究。结果表明：1989～2007年间，长江口生态监控区总共匡围了448．24km^2边滩湿地，围垦规模大，造成长江口生态监控区生境损失明显；1986～2002年间，崇明东滩及其浅滩、横沙东滩及其浅滩、九段沙、南汇边滩及其浅滩的5m等深线内面积淤涨62．71km^2，2002～2004年间转为侵蚀38．10km^2，长江口边滩湿地资源的增生能力有限，5m等深线内边滩湿地面积有被侵蚀减少的趋势；近期，长江口生态监控区边滩湿地的保护与开发矛盾突出。Based on the routine monitoring work in the foreshore wetland of ecology monitoring area of Yangtze River since 2004, the method, result and study of the change trend in the foreshore wetland were introduced. The results showed that there was 448.24 km^2 in the foreshore wetland be reclaimed in ecology monitoring area of Yangtze River during 1989 ～ 2007. It greatly reduced the habitat by large-scale reclamation. The area of 5-isobath added 62.71 km^2 in Chongming Dongtan, Hengsha Dongtan, Jiu Duan-sha, Nanhui foreshore and their shoals during 1986～ 2002, but it reduced 38.10 km^2 during 2002 ～ 2004. The changes showed that the increased capacity in the foreshore wetland was limited, and the trend of 5-isobath in the foreshore wetland be eroded was obvious . The contradiction of protection and exploitation in the foreshore wetland was outstanding in ecology monitoring area of Yangtze River in the near future.

关 键 词：长江口 生态监控区 边滩湿地 围垦 

分 类 号：P737.1[天文地球—海洋地质]