摘要
拉市海流域位于云南丽江市玉龙县境内，其内的拉市海湿地是我国重要的高原湿地之一。拉市海湿地在调节气候、提供水源和提供珍稀物种栖息地等方面发挥着重要生态作用。分析了拉市海流域的主要胁迫因子：气候、农业活动、火烧、围堰及其它水利工程。在这些胁迫因子综合作用下，拉市海湿地生态系统的结构与功能发生了明显的变化。目前，拉市海湿地水域部分，出现“孤岛化”现象，湿地生物多样性剧减，湿地生态功能显著下降。在分析胁迫因子及其影响下，提出目前应尽快拆除围堰，注重湿地保护和合理利用，建立区域生态补偿机制的策略。
Located in the Town of Yulong County, Lijiang City, Yunnan Province, Lashihai is one of the most important plateau wetlands in China. This article analyzes the threatening factors of Lashihai Basin, such as climate change,agriculture development, fire-burning, cofferdams and other project. Influenced by these factors,the structure and function of Lashihai ecosystem have changed a lot. Now,a “Landscape Island” appears in Lashihai wetland,and the loss of biodiversity is obvious. The wetland ecology function declines remarkably. After analyzing the factors and their influence, the authors advise that cofferdams should be demolished as soon as possible, the wetland should be protected and exploited correctly, and some countermeasures should be taken to compensate the local people for the declination of the ecology.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2006年第A01期131-135,共5页
Resources and Environment in the Yangtze Basin
基金
云南自然科学基金项目：云南西北部全新世以来生态环境变化及其影响研究（2003D0034M）“973”子项目--纵向岭谷地表过程及其生态环境效应（2003CBl405-09）
关键词
拉市海流域
胁迫因子
结构
功能
Lashihai Basin
environment-threatening factors
structure
function
