雨林区生态退化机制对西南喀斯特区生态退化机制的启示  

The enlightenment of the rainforest of ecological degradation mechanism on the southwest karst area of ecological degradation mechanism

作　　者：韦易伯[1] 童新华[1] 韦燕飞[1] 田涛[1] 

机构地区：[1]广西师范学院资源与环境科学学院,广西南宁530001

出　　处：《大众科技》2012年第5期89-91,共3页Popular Science & Technology

基　　金：广西自然科学基金重点项目(0832021Z);广西研究生教育创新计划资助项目(2011106030705M03)

摘　　要：热带雨林被称之为"绿色沙漠",原因就是因为高温多雨的气候条件致使植被生长旺盛,其土地养分基本上都存储在植物体内,而土地本身则非常贫瘠,所以一旦雨林植被遭受破坏其生态系统就难以恢复。我国西南喀斯特区同样也是高温多雨并且土壤肥力较差,所以两者生态退化的机制有一定的可比性。文章主要从养分迁移角度,结合了雨林生态系统的脆弱性,探讨了本区生态退化的机制,并提出合理利用的初步探讨。Rainforests are being called ＂green desert＂,the reason is that the high temperature and rainy conditions cause the vigorous growth of vegetation.The soil’s nutrition is basically stored in plants,and the land itself is very poor,so if the vegetations of the rainforest are destroy,its ecological system will be hard to recover.The Southwest karst area of China is also high temperature,rainy conditions and poor soil fertility,so the ecological degradation mechanism of them has certain comparability.This article is mainly from the angle of nutrient transfer,combined with the vulnerable ecological system of the rainforest to research the ecological degradation mechanism of the southwest karst area,and put forward the reasonable use of the initial study.

关 键 词：西南喀斯特 雨林 生态退化 养分迁移 预防与治理 

分 类 号：S156[农业科学—土壤学]