The outcomes show that the sequence of soil erosion of types of land use in different regions is different and the sequence of soil erosion of types of land use in different periods of the same regions is uncertainty ; the occurred rate of soil erosion of new wasteland is higher than that of idle wasteland for years ; the occurred rate of soil erosion of grassland is higher ; the occurred rate of soil erosion of non - irrigated farmland is high and the soil erosion intensity of land used for construction is great during construction and becomes smaller after completion 结果表明:不同区域土地利用类型的土壤侵蚀序列各不相同,而同一区域不同时期土地利用类型的土壤侵蚀序列不确定;新出现的难利用地比长期闲置的难利用地土壤侵蚀发生率高;草地土壤侵蚀发生率偏高;耕地中旱地的土壤侵蚀发生率高;建设用地建设时土壤侵蚀强度大,而建成后土壤侵蚀强度小。
The land use takes place to compare to change greatly in 1992 ~ 2004 in shihezi city , the first with the change of the garden ares the woodland , transportation mineral areas , but negative change aspect , the ground and farmland is the most obvious 结果表明,近12年来石河子市园地、林地、交通用地、居民点工矿用地的正向变化较明显,而负变化方面,则是以未利用地和耕地的变化最为突出土地利用结构总体变化不大土地利用类型的转移以非农建设占用农用地特别是占用耕地现象日益突出为主要特点,并呈现明显的地域差异。
The main conclusions were as follows : ( 1 ) great changes from 1992 to 2001 have been taken on the area , space and quality of land use of total city , thereinto the changes of cultivated field and residential and industrial area were most remarkable . influence on the land use distributed pattern by the topography and location were embodied fully by the spatial change of these two kinds of land use . forestry land and residential and industrial area were the main object to which many land use types changed 主要结论如下: ( 1 ) 1992 2001年全市土地利用面积、空间和质量都发生很大变化,其中以耕地、居民点及工矿用地变化最为显著;这两种土地类型的空间变化充分体现北京地形及区位特征对土地利用分布格局的影响;土地利用类型之间转移的主要目标集中于林地、居民点及工矿用地。
By integrating gis , social and economic statistical and field investigating data , taking wudinghe river watershed as the case study area , we discussed the driving mechanisms for the watershed land use change and the relationship between land use spatial distribution pattern and soil erosion at different scales . the results as follows : 1 本文以无定河流域为典型研究地区,借助地理信息系统( gis )技术,结合社会经济统计资料和实地调查的数据,探讨无定河流域土地利用变化的驱动机制和流域内不同尺度土地利用类型空间分布格局与水土流失的关系,初步结论如下: 1