Study On The Changing Of Land Use And Landscape Of Yangcheng Country

Yangcheng County is under the jurisdiction of Shanxi Jincheng, since the reform and opening-up, its socio-economic development has been rapid. With the advance of urbanization in Yangcheng County, which has materially changes happened on land use, landscape pattern also changed, this change will inevitably bring some impact on socio-economic and ecological. Therefore, timely and accurately grasp the change of land use and landscape pattern in the area, it has a great ecological significance to achieving sustainable socio-economic development of Yangcheng County.In this study, we use the second land resource survey result and land-use planning achievement of2020of Yangcheng County as data sources, according to research convenience and audio-visual needs, and following the standards of classification of land use planning, the system of land use classification is rebuilt;with the support of GIS technology, making the land use type map of2009and2020; model of the land use range,dynamic degree, land use degree index, the transfer matrix of land use and landscape indices is used for discussing the change of land use and landscape pattern. The results are as follows:(1) Yangcheng County2009land use is dominated by agriculture, the proportion of agricultural land reached75.08%in the total land area of the county, it is the largest proportion; compared with2009,2020Yangcheng County farmland and other agricultural land, waters and unused land decreased, woodland、 parkland and construction land increased.(2) Compared with2009, land use degree in Yangcheng County Composite Index will be increase in2020, land use degree improved.(3)2009-2020changes in performance between land use types are:reduction of arable land, mainly into construction land and woodland; garden increased from unused land; woodland and grassland increased from arable land and unused land; other agricultural reduced, mainly into construction land; increased construction land, mainly from arable land and unused land; waters decreased mainly into construction land; unused land decreased mainly into farmland, orchard, woodland and grassland, construction land.(4) in the view of landscape level scale,2020Yangcheng County farmland landscape fragmentation level will be deeper, the degree of aggregation weakened, patch shape will become complicated; garden landscape scale increases, human intervention plaque structure is very obvious; woodland and grassland landscape is still the most dominant type in the type of plaque accumulation primarily in a large area of distribution; further aggregation of other agricultural land weakened, distribution tends to disperse; construction land is more dramatic landscape change, urbanization process will produce its structure significantly affected; waters affected by anthropogenic landscape is not obvious; unused land by human interference increases, it will be most intense human development activities of landscape; in the view of landscape level scale, in2020the impact of human activities on Yangcheng County landscape pattern increased, land use richer, the degree of heterogeneity of the landscape enhanced and balanced development of landscape pattern,distributed in space more uniform, to some extent, enhance the landscape anti-jamming capability and the stability of the entire ecosystem.