LUCC And Social Economy Analysis Of Bijie Pilot Area Based On RS And GIS

Land as a carrier of human life and production,rational use of land can not only improve the efficiency of land,but also to protect the ecology,especially in the growing contradiction between people today,the rational use of land is particularly important.Exploitation exists between socioeconomic development and land close association to promote social and economic development of land-use change,urban high income to attract a large number of migrant rural labor force,part of arable land is idle,the rapid economic development also makes construction expansion of land,a lot of land to construction land conversion,further aggravating the loss of arable land and ecological damage.At the same time in different regions,due to the gap between the natural environment and different economic levels,different regions should be developed in line with the development model of the region according to its own characteristics.Therefore,while promoting regional economic development,it is necessary according to the natural conditions,demographic and economic situation of rational choice model of economic development,the development of more rational landuse planning,more efficient use of land.In this paper,remote sensing and geographic information system technology,by Bijie Prefecture in 1990,2000 and 2010 Landsat Satellite Imagery to interpret the three were extracted six basic types of places and land area.Analysis of the test area of land use / cover change in overall characteristics,further adoption of land use / land cover change transition matrix and dynamic analysis of mathematical models in Bijie Prefecture of land use / cover change laws,characteristics and processes.Based on the analysis of land use / cover change on land use to explore exist between socio-economic changes and changes in internal relations,by selecting the type of land-related socioeconomic indicators,the use of gray-scale model,looking to land and socio-economic change the intrinsic link between indicators.Research indicates:(1)Bijie Region 1990--2000 land use / cover change is less than the number and type of range sparse,loose,the city was scattered;2000--2010 years of land use / land cover change in the distribution of more intensive changes greatly.Where the greatest change of arable land,and turn out more than transference,mainly transform into construction land and woodland;forest land is arable and grassland flow;the main flow of grassland to cropland and forest land;small changes in water area,in order to reduce the area of the main grassland conversion;urban area continued to increase,mainly arable land sources.(2)Bijie Prefecture from single land use / cover change state can be seen in the area on all land use / land cover types of two-way conversions more frequent.Overall,more than farmland transferred into the area,the area continued to decline in the "drop potential" status;into building land area larger than the roll-out,increasing the size,in a "rally" state.From the area of all types of land use and land cover change in the overall trend and state index,all land use / land cover types of two-way conversions more frequent,balanced convert irregular situation changes.(3)Land use patterns significantly influenced the development of regional economy,and social and economic development also spurred the type of land use change.Change of arable land and agricultural population,grain output,the urbanization rate,gross agricultural machinery correlation maximum;woodland area with a total population change and forestry production,the urbanization rate has the highest correlation;changes in grassland area and economic factors related to the large number of animals of the maximum;changes in water area of the total population,fisheries output,per capita consumption of the correlation between the maximum;urban and architectural changes in land area and total population,urbanization rate,per capita consumption level,industrial output correlation maximum;unused land area change and the agricultural population,urbanization rate,industrial output value of the correlation maximum.(4)Bijie Prefecture in the rapid economic development is also facing serious land issues,regional land resources and large quantities,but gradually reduce the per capita consumption of people and land contradiction;karst widely distributed,poor land quality,forest area of more than,decreasing arable land;land use types varied,but regional differences are significant.