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生态学杂志 ›› 2001, Vol. ›› Issue (4): 46-51.

• 研究报告 • 上一篇    下一篇

流域水质管理系统构建的理论、方法和实践

林秋奇, 段舜山, 韩博平   

  1. 暨南大学水生生物研究所, 广州510632
  • 收稿日期:2000-01-10 修回日期:2011-04-24 出版日期:2001-08-10
  • 基金资助:
    广东省自然科学基金(984167);留学回国人员基金([1999]363号)资助

Methodology and Practice in Building Watershed Management System for Surface Water Quality

Lin Qiuqi, Duan Shunshan, Han Boping   

  1. Institute of hydrology, Jinan University, Guangzhou 510632
  • Received:2000-01-10 Revised:2011-04-24 Online:2001-08-10

关键词: 边缘效应, 木本植物, 生境片段化, 群落结构, 功能群, 千岛湖

Abstract: Watershed ecosystems are watershed-scale ecosystems that can be divided into two subsystems:land ecosystems and aquatic ecosystems.These two systems interact tightly through hydrology cycle.Aquatic ecosystems obtain water with nutrients from land ecosystems through hydrology cycle in watersheds.Aquatic ecosystems are often damaged by nonpoint source and point source pollution from land ecosystems.Nonpoint source pollution occurs coupling with watershed runoff,and it contributes a significant portion of all pollutants entering surface waters.Watershed-based water quality management must be taken into consideration and a tool is demanded to assess the impact of management on water supplies and nonpoint source pollution in watersheds and river basins.This paper introduces the methodology and practice in building watershed-based systems for integrated management of surface water quality.The general components of the systems comprise mathematics simulation models,GIS and aquatic ecosystem assessment system.All components are imbedded in an integrated structure that takes advantage of the GIS's open architecture.Four major processes are modeled in management systems:hydrology cycle,soil erosion process and transport of nutrients and dynamics of water quality in water bodies.Aquatic ecosystem assessment is suggested to be taken into consideration in all of the further development of management systems,for natural and anthropogenic disturbances that occur in watersheds not only impact surface water quality,but whole aquatic ecosystems as well.

Key words: edge effect, woody plants, habitat fragmentation, community structure, functional group, Thousand Island Lake.

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