Research On Spatial-Temporal Variance Of Intensified Land Use In Chongqing City

The land intensive use is the important content to build the abstemious social, and it is the effective measure to realize science development view and promote economicsociety's sustainable development comprehensively. The development land intensive use research provides the theory basis and the technical support for the land utilization management and the decision-making, which is extremely urgent and essential. This article applies the comprehensive evaluation method to measure land utilization intensive situation in Chongqing, analyzes the spatial-temporal variance characteristic of land intensive use in the appraisal foundation, and carries on the driving force analysis. It is expected that will provide the basis for the forecast future land utilization intensive trend of development, will provide the macroscopic instruction for land reasonable use. The full text is divided into seven part:First part: Literature summary. Introduces overseas, domestic research progresses of land intensive using and carries on the brief synthesis narration.Second part: Introduction. Summarizes paper's topic selected background and significance. Introduces the rationale about land intensive use and shows the article's research mentality and method.The third part: Summarizes Chongqing's natural environment and the social economy general situation. Next from the land utilization intensity, the land put into -production aspect to analyze the Chongqing land intensive use overall survey.The fourth part: Carries on the comprehensive evaluation to the Chongqing land utilization intensive situation using the hierarchy analytic process and the entropy value method.The fifth part: analyzes the spatial-temporal variance characteristic of land intensive use uses with the rank correlation coefficient and ARCGIS method. Sixth part: analyzes the driving forces of land intensive use in Chongqing.Seventh part: Conclusion.This article's conclusion is as follows:Since 1997, the temporal variance of land intensive use composite index in Chongqing various areas is obvious: Jiangbei, Nanan, Yubei, Qianjiang and Dianjiang's intensive use composite index enhance distinctly. Dadukou, Banan, Qijiang intensive use composite index enhance unremarkable. Shapingba, Jiulongpo, Tongnan etc area's intensive use composite index descend unremarkable. Jiangjin, Rongchang, Changshou etc area's intensive use composite index drop distinctly .The spatial distribution of Chongqing land intensive use composite index has remarkable difference: The region land intensive use composite index of the main city zone is highest. To peripheral extends by the main city zone, the composite index decreases progressively in turn. Areas which construction land intensive use indexes are highest include Shuangqiao area and the main city zone; secondly include the main city zone circumjacent areas and WanZhou, Fuling etc; again include the northwest of Chongqing and the majority areas of Three Gorges storehouse district. Areas which agriculture land intensive use indexes are first and second level nearly include the main city zone and the west of Chongqing ; which agriculture land intensive use indexes are third and fourth level include Three Gorges storehouse district primarily. The mesa corresponds to the intensive index highest area; Flat land and low land correspond to the intensive index low area in the land intensive use elevation model vertical view. High value area and the low value area interlock in the agriculture land intensive use's elevation model vertical view. The spatial accumulation degree of construction land intensive use is strong and it presents positive spatial autocorrelation. The agriculture land intensive use trends random distribution and the spatial distribution's statistics characteristics are not obvious. The distribution of construction land intensive use exist obvious high - high accumulation (hot spot); low - low accumulation (cold point)and the negative correlation distribution interlocks in space. The distribution of agriculture land intensive use exist obvious high - high accumulation (hot spot); low - low accumulation (cold point) ; high - low connection isolated pointes and low - high connection type surround it.The driving forces of Chongqing land intensive using include natural factor, economic level, land puts into production, land utilization structure, industrial structure, policy, technology and the management. Its main conclusion is: Chongqing land intensive use composite index and average per person GDP present correlation. The weight of land puts into production is higher than other targets. The land utilization structure target is significant to the intensive use composite index. Areas which construction land intensive use composite indexes are highest are the two and three industrial most developed areas. Areas which agriculture land intensive use composite indexes are higher have developed suburb agriculture and carry on agricultural industrial production earlier. The land intensive use is influenced deeply by the region macroeconomic policy. The technical level unceasing enhances, which provides important support for the land three-dimensional space resources using. The land management level difference has certain influence function to the land intensive use.