摘要
湿地生态廊道是位于湿地区域之间的具有一定宽度的条带状通道,它能使湿地中基因流动,具有重要的栖息地、传输、滤过和阻抑以及物质源、汇等功能。通过研究湿地生态廊道的结构与功能特征,提出了湿地生态廊道设计的原则、标准和具体模式。同时,以三江平原浓江河湿地生态廊道为案例,通过对该廊道区域的野外考察和调研,利用"3S"手段对廊道景观进行了设计,将廊道划分为核心区、缓冲区和实验区,对不同区域的生态功能及保护内容和强度进行了明确的划分。针对廊道地区的土地权属不同,提出了基于地方政府及农垦系统的湿地资源共管模式。将湿地生态廊道建立的理论与实践相结合,既丰富了湿地生态廊道研究的理论,又为其他地区及其他生态系统建立生态廊道提供模式示范,同时也促进了湿地的合理保护与管理。
Wetland ecological corridor （WEC） is a thin and line strip of area with certain width, which can promote the gene flow and sustain the life, provide the habitat for wildlife, maintain the function of mass transition, filtration, source and sink. Generally, an interior main body should locate in the wetland ecological corridor, such as river, lake, rivulet, tree island, ditch, road and some little fragmental patches. Based on the analysis on structure and function characteristics of WEC, principles, criterions and specific modes for the WEC buildup were put forward to. The buildup of WEC should follow the principle of continuity, diversity, and public involvement, at the same time WEC should include abundant community structures and environmental gradient types. Different corridor widths should be determined according to different conservation objects, ecological base flow should be maintained interior WEC with river, lake or ditch as main body in order to keep mass flow. With a case study in Nongjiang River WEC located in the Sanjiang Plain, combined with field survey, sampling, and ＂3S＂ techniques, WEC landscape was designed to 3 parts, including core zone, buffer zone and experimental zone, the ecological functions, conservation objectives and supervision forces are allocated with different zones. Because of the difference of land ownership of Nongjiang River WEC, co-management modes for the local government and state farm system was advanced. Combination of theory and practice of WEC buildup enriches theories of wetland ecology, and promotes the effective wetland conservation and management; whilst it can provides the model of WEC buildup for other ecosystems.
出处
《湿地科学》
CSCD
2009年第2期99-105,共7页
Wetland Science
基金
全球环境基金/中国国家林业局/联合国开发计划署项目(CPR/98/G32)
中国科学院东北地理与农业生态研究所前沿领域项目(KZCX3-SW-NA3-01)资助
关键词
湿地
生态廊道
结构与功能
湿地资源共管
浓江河
wetland
ecological corridor
structure and function
wetland resource co-management
Nongjiang River
