湖北省“土壤侵蚀内城现象”及景观格局

Inner-city-Phenomenon of Soil Erosion and Landscape Pattern in Hubei Province

在空间上湖北省“土壤侵蚀内城”与“强土壤背景侵蚀区位”具有偶合性 ,两者共同形成“叠加效应”。受气候、地质、地貌分异控制 ,湖北省土壤侵蚀景观生态系统的整体结构具有空间不平衡性。南北分带、东西分块 ,以长江、江汉盆地为输沙沉积中心 ,土壤流分别从南、北向中部 ,由西向东依次下降 ,北部、南部土壤流呈现向中心轴带辐聚单流向特点 ,为一“不对称断块环”组合结构。“土壤侵蚀内城现象”

In Hubei province, the soil eroded to inner city is coupling with formidable soil erosion to background in the spatial phase, and they form overlying effect together. Integral structure of soil erosion landscape ecosystem is unbalanced in spatial owing to the differences of the climate, geology, geomorphy in Hubei province. In micro scale, the Yangtze river and Jianghan plain are the center of sediment and transporting sand, the currents of soil are assemble successively from north, south to the center section, and from west to east walking through center axes . The spatial structure pattern is unsymmetrical block ring model. The soil erosion to inner city is come into being of both social and natural factor.