贵州喀斯特山区农业生态环境的脆弱性及可持续发展对策

Fragile Character of Agro-ecological Environment in Karst Mountain Area of Guizhou and It's Countermeasures of Sustainable Development

贵州喀斯特山区的农业生态环境极为脆弱 ,对农业的可持续发展带来了很大的不利影响。本文认为其脆弱性主要是由喀斯特自然过程和人为活动共同作用的结果。并据此探讨了其环境整治和农业可持续发展的战略途径及相应的发展模式。

Agro_ecological environment of karst mountain area in Guizhou is a fragile environment.It greatly restrains local sustainable development of agricultrue.This article regards its fragility as the result of co_impact by karst natural proceed and human activities.As the natural process,exist of carbonate rock and its erosion by water are the natural foundation of characters of main environmental resources that include water,soil,vegetation in karst agro_ecological environment of Guizhou mountain area and their fragility.These characters and fragility are discussed in this article. Moreover,unreasonable human activities,especially destroy of forest and continue extend of dry cultivated land area which directed by surplus of population,aggravate the fragility of karst agro_ecological in Guizhou mountain area.On the basis of these,the population controlling stratagem,resource stratagem and ecological environment stratagm for agricultural sustainable development in this type of area are discussed.And some concrete countermeasures are posed here.