地理研究 ›› 2000, Vol. 19 ›› Issue (2): 189-193.doi: 10.11821/yj2000020011

• 论文 • 上一篇    下一篇

湿地的防洪功能分析评价——以东洞庭湖为例

吴炳方1, 黄进良2, 沈良标3   

  1. 1. 中国科学院遥感应用研究所, 北京 100101;
    2. 中国科学院测量与地球物理研究所, 武汉 430077;
    3. 天津大学水利系, 天津 300072
  • 收稿日期:1998-12-03 修回日期:2000-01-10 出版日期:2000-06-15 发布日期:2000-06-15
  • 作者简介:吴炳方(1962- ),男,江西玉山人,博士,副研究员。主要从事环境遥感与地理信息系统研究工作。
  • 基金资助:
    国家自然科学基金地学部青年基金资助项目(49101014)

Analysis and evaluation of flood-control functions of wetland taking Dongting Lake as an example

WU Bing-fang1, HUANG Jin-liang2, SHEN Liang-biao3   

  1. 1. Institute of Remote Sensing Application, CAS, Beijing 100101, China;
    2. Institute of Geodesy and Geophysics, CAS, Wuhan 430077, China;
    3. Department of Hydrology, Tianjing University, Tianjing 300072, China
  • Received:1998-12-03 Revised:2000-01-10 Online:2000-06-15 Published:2000-06-15

摘要: 湿地作为生产力最高的土地类型,具有水文、水质、食物链和栖息地等方面的功能以及社会经济价值。其中水文功能主要表现在防洪功能方面,包括调蓄洪水、削减洪峰、滞流和减少侵蚀等。文中通过利用地理信息系统、遥感数据、模拟、统计分析和空间计算等方法,定量分析评价东洞庭湖湿地的防洪功能,提出了湿地防洪功能评价方法。

关键词: 湿地, 防洪功能, 评价

Abstract: Wetlands are the most productive ecosysterms which provide functions of hydrology, water quality, food chain and habitats. They also possess social and economic values. Their majar hydrological function is flood-control, including flood storage, cutting flood peak down, flood detection, and reducing erosion. In this paper we analyse and estimate quantitatively the flood-control functions of the East Dongtinghu Wetland applying GIS, remote sensing data, mathematic simulation, statistical analysis, spacial calculation. The methods for evaluating the flood-control functions of wetlands are provided. The area of the East Dongtinghu Wetland occupies 87.9% of the whold East Dongting Lake basin. The water storage occupies 80% of the lake's total. Because of human reclamation and silt deposition, the flood-control functions are declining quickly.

Key words: wetland, flood-control function, evaluation

PACS: 

  • P343.3