摘要
湿地是自然界最富生物多样性和生态功能最高的生态景观,同时湿地生态系统也是世界上受威胁最为严重的生态系统之一,在自然因素和人类活动的影响下,湿地大面积转化或丧失,湿地生态环境不断恶化.本文从景观静态、景观动态和景观应用研究三个方面综述了西北干旱半干旱区湿地景观变化的研究进展,指出湿地多功能景观、湿地景观变化过程与生态效应关系定量化和湿地变化与全球气候变化之间的关系是西北干旱半干旱区湿地景观生态研究的重点领域.
Wetlands are ecological landscapes with abundant biodiversity and play important ecological functions. Wetland ecosystems have been proved to be one of ecosystems which are seriously endangered and degraded, and most wetlands have been transformed or lost because of both natural and anthropogenic impacts. In this paper, static research, dynamic research and application research in arid and semi-arid areas in northwest of China are reviewed, and key research fields in the future such as multifunctional wetland landscapes, quantitive relationship between changes of wetland landscapes and their ecological effects, and relationship between changes of wetland landscapes and global climate changes are finally pointed out.
出处
《河西学院学报》
2007年第2期70-73,79,共5页
Journal of Hexi University
关键词
西北干旱半干旱区
湿地
景观生态
arid and semi-arid areas in northwest of China
wetlands
landscape ecology
