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我国流域生态系统退化研究进展

李春艳1,2;邓玉林1   

  1. 1四川农业大学林学园艺学院, 四川雅安 625014;2成都格林普洛环境生态研究所, 成都 610041
  • 收稿日期:2008-05-04 修回日期:1900-01-01 出版日期:2009-03-10 发布日期:2009-03-10

Degradation of watershed ecosystems in China: A review.

LI Chun-yan1,2;DENG Yu-lin1   

  1. 1College of Forestry and Horticulture, Sichuan Agricultural University, Ya’an 625014, Sichuan, China; 2Chengdu Institute of GreenPro Eco-Hightech, Chengdu 610041, China
  • Received:2008-05-04 Revised:1900-01-01 Online:2009-03-10 Published:2009-03-10

摘要: 流域生态系统是尺度较大且更为综合的生态系统类型,具有由自然、社会与经济多组分耦合的复杂性,同时又因其特殊的发育条件与演化进程,受到人为强烈而长期的干扰。因此,近年来,基于流域生态系统功能评估的研究倍受我国学者的关注,尤其是从不同时间和空间尺度对不同类型流域生态系统的退化进行了广泛探索,为流域生态系统的综合管理奠定了有力的理论基础。本文从流域生态系统退化的基本理论和研究方法入手,总结了我国近年来有关流域生态系统退化发生演化机制、退化诊断与分类体系、退化综合评价、监测和预警等方面的研究成果,并藉此提出了该领域今后研究的重点和方向,以期完善流域生态系统退化研究的理论体系和流域综合管理的技术体系。

关键词: 虚拟森林景观, 林火蔓延, 林火模型, 粒子系统, 三维可视化

Abstract: Watershed ecosystem is a macro-scale and integrated unit with the comp lexity in coupling of natural, social, and economic factors. Owing to its specia l development condition and evolution process, watershed ecosystem is intensivel y and chronically interfered by human activities. In recent years, the functiona l assessment of watershed ecosystem has been paid more attentions by researc hers, and especially, the degradation of different type watershed ecosystems has been widely studied at various temporal and spatial scales, giving a sound basi s for the integrated management of watershed ecosystems in China. This paper sum marized the research progress on the degradation of watershed ecosystems in Chin a, including evolution mechanism, diagnosis, classification, integrated assessme nt, and monitoring and early-warning, and analyzed the focuses and directions o f further studies.

Key words: Virtual forest landscape, Forest fire spreading, Forest fire model, Particle system, 3D visualization