Study On Assessment Of The Cultivated Land Intensive Use

The shortage of cultivated land resources in China as a long-term socio-economic development constraints, and land resources to implement sustainable use,we must change the extensive land use pattern. Strengthening of intensive land use inthe rational use of limited arable land, improve effectiveness, farmland is of importantsignificance.This research embarks from the relationship between people and land, combiningthe concept of sustainable development. By building on the PSR model evaluationsystem in the study area from 2001 to 2004 the level of intensive use of land for acomprehensive evaluation; In this foundation, the method which unifies using ESDAand GIS, has carried on the analysis to the space difference of the intensive degree offarming using; Through to the utilization analysis, and actual situation research area,the opinion and the suggestion about raises the cultivated land intensive use level haveproposed.Some of the main achievements of this thesis can be summarized as follows:(1) Constructs the intensive use to appraise the PSR model. The cultivated landintensive use is refers take the region land resource science disposition and thestructure optimization as a premise, in limited cultivated area reasonable increasecorrelation element of production investment, quantity and quality and quantity bothgiven due importance, maximum limit enhances the farming use the comprehensivebenefit, fully excavates the farming use potential, saves the precious farmingresources, thus walks the path in the farming use which the connotation digs dives andcontinues to develop. Obtains from the person relations angle, constructs based on thePSR model appraisal target system, and has carried on the analysis to each targetmeaning.(2) To studies the area farming to carry on the intensive use appraisal, under thePSR model frame, with the level analytic method determined various targets weight,will appraise the target value to carry on the quantification after a subordinationfunction, will calculate various villages and towns cultivated land intensive degree ofutilization using the synthesis appraisal model. Calculations showed that QianjiangCity intensive use of arable land at a moderate level.(3) Using ESDA and the GIS union method, to studies the area fanning useintensive degree the spatial variation to carry on the analysis, the exploration spatialdistribution rule and the practical significance. The result showed, between the research area various villages and towns although has the three-dimensional effect,causes it the development tendency which presents with the peripheral localitybetween mutually relates and mutually affects, but GAO Zhiqu diffusion effect is notremarkable, the scope comparison limitation, has not had the bigger radiation impetusfunction to the peripheral villages and towns. Therefore, will be supposed tostrengthen between various villages and towns from now on the cooperation and theexchange, will guide the peasant household to enhance the cultivated land intensivedegree of utilization.(4) Through the farming use intensive degree analysis, has discussed the questionwhich in the cultivated land intensive use exists, put forward the enhancementintensive degree of utilization proposal and the measure.