【摘要】 以乌江流域(贵州境内)景观生态系统为对象,在GIS支持下,应用缓冲区分析法,研究了水电梯级开发前后流域景观结构的梯度变化以及水电梯级开发对景观结构的影响。分析结果表明:不同缓冲距离内植被类型呈梯度变化;水电梯级开发对灌丛和农田的影响较大;水电梯级开发使缓冲距离500～2000m范围内景观格局发生突变。更多还原

【Abstract】 The impact on and the gradient change of landscape structure causing by hydropower cascade development in Wujiang watershed in Guizhou Province were studied using buffer zone analysis and GIS.The results show that the vegetation type in different buffer zone is gradient changed,and the hydropower cascade development has great impact on shrub and farmland and can lead to a sudden change on landscape in buffer zone with a distance of 500～2 000 m.更多还原