在对历史文献资料和实地调查材料分析的基础上 ,总结了近 5 0年来随州市土地利用变化及其环境效应。近5 0年来 ,随州市土地利用发生了显著变化 :林地面积增加了 90 % ,耕地面积增加了 77.8% ,草地面积减少了 98% ,荒地面积减少了近 73.5 %。用地类型的频繁转换干扰了生态环境的自我调节能力 ,造成区域内水土流失加剧 ,水质恶化 ,水旱灾害的频繁发生。

Land Use/Cover Changes and the Environmental Effects in Suizhou Between 1949～2000 LU Li xin (Department of Economics, Henan Institute of Finance and Economics, Zhengzhou 450002, China)Based on the historical and field survey materials, this paper drew some conclusions about the land use changes and the environmental effects of Suizhou. The results showed that for the last 50 years from 1949 to 2000, due to the notable changes of land use structure and intensity, water and soil loss has been accelerated, water quality has worsen and flood and drought have became more frequent.Suizhou; land use changes; environmental effects