Study On The Cultivated Land Spatio-temporal Change And Driving Factor's In Gaotai County

Land resources of cultivated land resource is the most important part of thecultivated land resources rationally and effectively using global scope, small to an areaof the social and economic sustainable development major issues. The large number ofour population, cultivated land area per capita less, strengthening farmland protection inrelation to the national food security, agriculture sustainable development, people'sliving stability etc. Key questions.Therefore, farmland to explore space-time change research cultivated land usechanges driving mechanism to solve grain safety and people's livelihood, problem,make feasible countermeasures of cultivated land protection, the scientific outlook ondevelopment, realize the regional cultivated land resources reasonable use andsustainable social and economic development, and has important theoreticalsignificance and practical significance.Firstly, at home and abroad were briefly methodizing and Land Use and LandCover change (LUCC) care, the stronger research status and cultivated Land Usechanges the drive mechanism, this paper introduces domestic and international researchstatus of cultivated Land Use changes related theory; Secondly, in the discussion ofcultivated land resource stronghold counties based on the present situation of defencecounty, analyzes the spatial and temporal variation of cultivated land resources; At thesame time the related analysis and principal component analysis is introduced tofarmland change research, reveals the driving force of the farmland change drivemechanism.Some conclusions:(1) from 1999 to 2008 stronghold counties cultivated land area is stable change andthe trend of increased slightly.(2) the relative change rate of arable stronghold counties Rid > 1 appear frequencyhighest is camels sum of urban and rural and seven times xuanhua town, dynamiccharacteristics, cultivated land that most obvious in cultivated land resources utilizationdegree is high, development intensity big; ROM. Urban and rural and new damtownship cultivated land relative change rate at least, cultivated land relative changes asin nine towns of amplitude is minimum, these 2 township economy development level of economy and modest pace, the overall level of urbanization is not high, urban andrural residents of arable land expanded the relatively slow demand is not big. In short,the underdevelopment of economy of villages and towns in relatively slow rate due tothe economic development, the demand for land, and these areas have fewer smallrelative rate of cultivated land; And the development level of economic development isrelatively moderate township or on resources, and cultivated land relatively vulgar intoa bigger change.(3) to reduce the quantity of cultivated land stronghold counties is mainly policy,the driving force of economic development and population growth, the quantity ofcultivated land change process with the obvious mutation main associated nationalmacro policy background, and the quantity of cultivated land change phases andcontinue to decrease basically is closely related with the rapid economic development,population growth of cultivated land change drivers also cannot be ignored.