The Analyses Of Land Use Change And Driving Mechanism In The Loess Plateau In The North Of Shanxi Province In Support Of GIS

Regional land utilize change it studies to be global environmental first important that change study not merely, It is significant with land management to regional sustainable development, Become contemporary front field one of of geography. In the world, through a large amount of research work, have made some progress in theory, method and technology, For instance LUCC information is obtained and deals with, LUCC urges the mechanism to be studied etc.The loess plateau in the north of Shanxi Province is a very important geographical area in our country, belong to half an arid, arid district, It is the important source of the Yellow River and silt. It is sand blown by the wind excessive district, roof beam hills area, low mountain incomplete district, etc.Forefathers study on loess plateau concentrate on land type divides, the land resource is classified and grade mainly, Small basin manage, soil corrode, land person who suitable for appraisal, land utilize the respects, such as assigning area, etc.. But static, analysis and research that determine the nature mostly, utilize dynamic change course research and corresponding driving force system study to land very few.In view of this, research this utilize survey, statistical data, historical materials data for basic materials with land, Use mathematical statistics, geographical information system and model, etc. technological method compare initial data materials systematic analysis and treatment. Regard county, district unit of one grade of administrations as unit of counting, carry on land spend multi-level space-time dynamic change study, Analyze 1986-2001 the land utilizes the quantity change all-sidedly, The land utilizesthe space change of structure.Through analyze article draw following meaningful conclusion while being above-mentioned:(l)District this one year, hit land utilize and take place the change by a large margin , and there are obvious regional differences one year. Display it in the following several points concretely: Land use pattern change a heavy one field, traffic land used for and cultivated land secondly most, Residential area and land used for industrial andmining, utilize ground and forest land again, and water areas rate of change minimum.(2)View deviate from degree have greater difference at space, with human enhancement of activity, View variety Diversified index reduce a heavy one Yanan Wu Banner county and Luochuan county of city most, Tongchuan Wang benefit district, son long county, Wubao county of city secondly, change a minimum one sweet spring water county and elm positive district, 29 sub county district two county diversified index of district these increase only.(3)Over the past 15 years, land, loess plateau of north of Shanxi Province, utilize degree rate of change R from one year < 0, prove that this district land is utilized and is in adjusting one or decline phase. Land utilizes degree change in and develops to have elm open district, spirit wooden county and 3 district, county of Wubao, only issue.(4)North of Shanxi Province land, district of loess plateau, utilize change urge factor, ecology safe policy factor whether this district land utilize the main drive factor changed, Through to nature and comprehensive consideration of human factor, With the optimum economic welfare - the urging area safely of the ecology, there are 5 counties in all.(5)Cultivated land, water areas, utilize area reduce gradually, Field, forest land,, resident industrial and mining land used for, traffic land used for area it expands to be main variation tendency that land utilize, loess plateau of north of Shanxi Province, further.