The Study On Rule And Driving Mechanism Of Land Use Change In Ejin Holo Banner

This article Based on the land use data investigation and statistical yearbook material in Ejin Holo banner, analysis the rule and structure characteristics and landscape patterns of land use change in Ejin Holo banner from 1996 to 2008 years. discussed land-use change driving mechanism of Ejin Holo banner through selecting the propriatal natural economic and social driving factors and the Principal component analysis method. Reach the conclusions as follows:(1) The land use of Ejin Holo banner have changed greatly and its land use annual rate reached 0.72 percent from 1996 to 2008 years. During this years, grassland, unused land, cultivated land and water area have reduced as well as woodland, village and town industrial land, land for traffic and garden land area have increased; woodland area increased 24696.87 hm2 and cultivated land area reduced 5153.36 hm2 is the most obvious change. The dynamic attitude of woodland, village and town industrial land, land for traffic and garden land always keep positive number, and their growing speed are 2.16 percent 1.31 percent 1.42 percent and 7.89percent,of course the growing speed of land for traffic is fastest. The land use rate of Ejin Holo banner is increasing year by year, the land use degree is in medium, the land use is in development period.(2) As to the overall landscapes pattern of land use, the number of patches (NUMP) is increasing and the median patch size (MPS) is reducing show that fragmentation degree of landscapes is more and more serious in Ejin Holo banner. The Shannon diversity index (SDI) and Shannon evenness index (SEI) appear decline trend, the Proportion difference of all kinds of landscapes elements is narrow, the trend of land use is uniformity. The increase extent of total edge (TE) and edge density (ED) is obvious. The degree of Man-made interference of land use landscapes pattern is more and more serious in Ejin Holo banner.(3) By the research of land-use change driving mechanism, the author combines with the local unique natural and social economical background, using the principal component analysis to select the 10 major natural and social economical factors with impact the land use change. By means of Statistical Analysis System, analysis result prove that the factors which influed the land use change can conclude to: economic factor, population and Agricultural industry structure factors, climate change factors, policy factors.