Research On Intensive Utilization Of Cultivated Land And Construction Land In Minqin County

Land is the basic element in human live and development; it is also an importantresource which can’t be regenerated. China has a large population and a small amount ofland, the cultivated land reserved is insufficient. With the increase of population and theacceleration of industrialization and Urbanization,construction land quantity increasesunceasingly. Total quantity and the average per person of cultivated land maintainedreducing continually year by year,the overall quality level and unit area outp ut is low.Thecultivated land protection and grain security problem will be also more stern.Enhances theagricultural land unit area output is the key to solve the grain security problem andagricultural land intensive use.Meanwhile total quantity of construction land is in theout-of-control and expands too fast, additionally, there are some problems existing in theconstruction utilization such as, low utilization level, unreasonable structure andlow-efficiency utilization． In this position, land intensive utilization has become theinevitable choice which can ease land supply and demand contradictions in order to ensuresocio-economic stability and development rapidly in the new period. Based on this, thearticle analyze the time-sequence dynamic change characteristics(1997-2011)and spatialdifferentiation of cultivated land and construction land in Minqin County, finally putforward land intensive utilization proposals and measures．It can promote the reasonableefficient utilization of land in the study area, trying to do some beneficial attempt thatperfecting the land intensive utilization theory, such as evaluation index system and researchmethods. Full text of main conclusions is as follows.（1）Despite of a slight decline from1999-2001, the cultivated land intensiveutilization degree had been increasing constantly by an annual average of6.4%from1999to2011in Minqin County. The cultivated land intensive utilization degree in2011increased by1.3times than which was in1997. The most important factor which affects the degree isoutput and input efficiency, continuous utilization and utilization intensity has little effect.（2）Significant difference was found in18townships of cultivated land intensiveutilization degree. The townships of Xuebai and Chongxing are in highly intensiveutilization zone，the townships of Daba and Shoucheng belong to middle intensive use area,Changning and other10townships are in the general intensive use area，Hongshagang andother3townships belong to not intensive use area. The general intensive and not intensiveuse area account for79.9%of the whole area of Minqin，It indicates that the total level ofintensive utilization is low in Minqin, still has great potential in space. （3）Despite of a slight decline from2005-2006, the construction land intensiveutilization degree had been increasing constantly by an annual average of3.4%from1999to2011in Minqin County. The construction land intensive utilization degree in2011increasedby1.6times than which was in1997. The most important factor which affects the degree isinput and utilization intensity, elastic index and utilization efficiency has little effect.（4）Significant difference was found in18townships of construction land intensiveutilization degree. The township of Sanlei in highly intensive utilization zone，Nanhu andother14townships are in the general intensive use area，Chongxing belong to low intensivearea, Hongshagang belong to not-intensive area, Hight area account for7.3%of the wholearea of Minqin，It indicates that the total level of intensive utilization is low in Minqin, stillhas great potential in space.