Evaluation On Cultivated Land Fragmentation Of Different Data Resources

On the basis of Hongjiang city’s current land use database from 2004 to make use of remote sensing image and artificial visual solution for cultivated land plot interpretation, formation of arable land farmers plot line.Research on the analysis of the causes of cultivated land fragmentation in different terrain conditions,and compare the level of the cultivated land fragmentation in different terrain conditions.Based on the land use status in 2004 in Hongjiang city, this paper use the remote sensing image interpreted Sampling of cultivated land. It formed the land dividing line of farmers. Applied ecology index,for example, lot size、spatial dispersion and Fractal dimension,calculate the arable land fragmentation overall score. The results of the study can provide theoretical basis and technical support for the city land utilization and land circulation,and puts forward some suggestions for cultivated land managementThe main findings of the study: From the level of the county. (1) To calculate the finely results have certain differences based on the present situation of land use map and sampling digital field data of two kinds of data in different terrain conditions the level of cultivated land and finely are more convincing based on the digital field data that obtained finely index evaluation is necessary. (2) It’s findings about cultivated land fragmentation are different base on different terrain conditions.While the land on the hilly area’s fragmentation is higher than the low mountains area’s fragmentation, and plain area had a much lower fragmentation degree. (3) The cultivated land and finely degree in Hongjiang city is high.Based on the above reasons.It is necessary to put forward the municipal land and finely status quo to improve the present situation of cultivated land and finely suggestions for the improvement of cultivated land utilization:(1) The control of population, relieve contradiction of population and land, and reducing cultivated land caused by human factors and finely. (2) It is strictly prohibited to illegally occupy cultivated land for construction land, reasonable layout, strict enforcement of land use planning.(3)Make the city of rural social security system of urban migrant workers strong and perfect, in order to weaken the dependence of cultivated land. (4) Implement the comprehensive improvement of the rural land and land consolidation measures.