The Temporal And Spatial Distribution Of Economic Benefit On Cultivated Land In Cities And Counties Of Harbin

The economic benefit of cultivated land is the foundation and the core in comprehensive benefit of cultivated land, farmers have economic benefits and cultivated land use of economic benefit is closely linked. Through the space and time of arable land economic benefit to study the distribution of the cultivated land area, can reveal of economic benefits in time and space differences is integral to improve regional economic benefit of cultivated land use and land use planning, land use policies formulated based. Harbin in Heilongjiang province is the key area of agricultural development, and is also an important region for supply, wuchang municipality, Bayan County, city and county has been built and Harbin commodity grain base, cultivated land intensive use level and higher management level, is the study of the economic benefits of the typical area of cultivated land.This paper choose ten cities and couties of Harbin to study area, from the "input" and "output" two to build an economic benefit of cultivated land evaluation index system, using the entropy value method to calculate the index weight, multiple evaluation model by using grey for2001-2009years Harbin city and county and economic benefits of cultivated land evaluation. Through the SPSS software, select the principal component analysis (pca) in2001-2009to affect the study area economic benefit of cultivated land principal component analysis, and find out the research area of cultivated land the economic benefits of the main influencing factors By the cluster analysis method of cultivated land in the study area economic benefits of regional differentiation analysis. Use of MAPGIS software on2001-2009every city and county study area of cultivated land economic benefit distribution as well as the research area of cultivated land economic benefit overall distribution levels were portrayed. Select performance data absolute dispersion degree of the poor-the index, standard deviation, and performance data is the dispersion degree index-tin become poor coefficient, coefficient, in the study area of cultivated land economic benefits in time on change trend difference analysis.The results of the study show that,2001-in2009, a study area of land "input" benefit,"output" benefit and cultivated land the overall economic efficiency development trend are basically the same, although have wave motion, but volatility is slow, and the overall rise in waves; The study area of cultivated land every city and county "input" benefit,"output" benefit and cultivated land in the development of the comprehensive benefit of different characteristics, but are in waves up; The study area economic benefit of cultivated land change time factors unit of area labor input, and cultivated land area, fertilizer inputs, and agricultural production value per unit area.2001-2009, the area of cultivated land in space economic benefit present different distribution, wuchang municipality, ShuangChengShi, ShangZhiShi, bayan county, yilan county, the county and the founder county, the seven city and county for cultivated land economic efficiency high efficient area; Penn county and MuLanXian, the two county for cultivated land in the economic efficiency effect area; Prolong life of cultivated land area economic benefit from low, causing the reason for the difference between the space has both social economic reasons also have natural causes.2001-2009, the area of land "input" benefit,"output" benefit and the overall economic efficiency space difference vulnerable,"output" benefits and comprehensive economic benefit of differences in time in the space changes are basically the same.In Harbin city and county had jurisdiction over time and space distribution of cultivated land economic benefit, this paper put forward the following Suggestions: to strengthen the quality of cultivated land protection, increase the cultivated land area; Improve cultivated land mechanization rate, reduce unit area labor investment; Reasonable use of chemical fertilizers, enhancing the cultivated land production potential; Ensure agricultural fixed asset investment, improve the output value of cultivated land; Sound market system of agricultural products, safeguard their interests; Improve cultivated land ecological benefit and social benefit, and promote the sustainable development of the cultivated land.