Research On Temporal-spatial Change Of Cultivated Land Intensive Use In Zhuzhou City

The cultivated land is a very precious resource, which is one of the most important material bases for human existence and development; nothing can replace its status in the process of agriculture and social economic development. Research on evaluating the cultivated land intensive use of zhuzhou city is meaningful not only to construct resource-intensive and Environment-friendly society, guarantee the hunan province and the national food security, increase farmer’s income, alleviate the conflict between populations and lands, but also to prompt agricultural industrialization, realize the regional sustainable social economic development, so that evaluating the cultivated land intensive use is extremely urgent and essential to provides the theory basis and the technical support for the land utilization management and the decision-making.On the ground of study the connation of the cultivated land intensive use, research method, research mode and the related result, the paper analysis the importance of evaluating cultivated land intensive use of zhuzhou city, then apply the BP artificial neural network:projection pursuit mode to evaluate the cultivated land intensive use, thereafter, find the problem and restrictive factors of zhuzhou cultivated land intensive use, at last, based on relative studies in this area, put forward the intensive use of zhuzhou city for cultivated land level countermeasures. The main conclusions are as follows:According the principle of index system and the goal of cultivated land intensive use, the paper select the input-intensity, use degree, use efficiency and sustainable situation, build a index system include of4layer and12indicators and judging standard of the cultivated land intensive use, which reflect the restrictive factors of cultivated land intensive use.From the preliminary analysis, the status of cultivated land intensive use in2010is good, but the sustainability is not very well.BP artificial neural network was used to evaluate the temporal change law of cultivated land use in each county in zhuzhou city. The results showed that as the times go on and effect by the inner condition and outer environment change, from2000to2010, the degree of cultivated land intensive use of each district has its own character, but every district is increase on different degree on the whole.Projection pursuit mode was adopted to evaluate the spatial variation characteristics of cultivated land use in zhuzhou city. The result show that the degree of cultivated land intensive use advanced in a wave-like form, from2000to2010, space difference of cultivated land intensive use is small, generally showing a regional distribution pattern of higher in the north and lower in the south, which agree well with agriculture land intensive use location theory, reflect that the social-economic status are the mainly factors influence the cultivated land intensive use. On the whole, space distribution of cultivated land intensive use is not change very greatly, but each district of cultivated land intensive use has increase on different degree.According evaluates cultivated land intensive use of zhuzhou city and the analysis result; Put forward the cultivated land intensive use mode and countermeasure. First, improve the awareness of cultivated land intensive use, prefect the related law and policy; second, increase agriculture investment, enhance the farmland infrastructure construction; third, strengthen land consolidation and land transfer, achieve large-scale management; fourth, depending on sci-tech progress, enhance comprehensive benefit of cultivated land use; fifth, strength ecological environment construction, promote cultivated land sustainable utilization; sixth, strength education of farmer culture quality; seventh, improve the efficiency of market circulation, speed up establish social service system.