The Evaluation Studies Of Sustainable Use Of Land Resources In Cengong County

Land resources in the production of human life and the survival is the material foundation and source. Also it is an important part of natural resources. With the rapid population growth, human use land in the process, resulting in a series issues, such as land degradation, soil pollution, reducing the area of arable land, serious soil erosion, and so on. The plundering utilization of land resource is now the menace to human exist and development. To research the sustainable use of land, to achieve the efficient allocation of land resource, will is of great significance to the implementation of the strategy of sustainable development.Guizhou is a wide distribution of carbonate rocks in karst mountainous areas, the strong karstification, the existence of their own vulnerability and the characteristics restorative difficult. With rapid economic development in the area,there are some issues,such as population pressure, shortage of land resources , urban construction and the protection of arable land, particularly in the conflict. To this end, it is necessary to explore the area of land use change,and evaluate sustainable use of land resources. only the scientific use of land resources to assess, to a reasonable and efficient use of land resources in order to ensure that the entire socio-economic sustainable development.Article from the sustainable use of land resources, starting with basic theory, the Cen gong County as a system, according to the natural and social economy, analysis of county land-use change, problems and drivers of change, from the production, stability, resource conservation, and economic feasibility and social acceptability of the five, a total of 23 indicators, the establishment of evaluation index system; The weigh of indexes are defined by means of Analytic Hierarchy Process on the basis of quantitative and qualitative analyzing, the standardization of indexes are defined by subordinating function of fuzzy mathematics, finally we use mufti-good Cengong county has been increasing for the last six years functions to calculateliner land using of the comprehensive values. The values indicate that the sustainability of land using of Cengong county has been increasing for the last sis years. Of which:①Productive land is the initial stage of sustainable development,food, fruit yield to promote the sustainable use, crop changes in multiple crop index was rather stable;②Stability of production over the past few years is on the basic sustainable development level, weak agricultural infrastructure in Cengong , effective irrigation area of small, become a limiting factor for sustainable development;③The protection of resources is on the basic sustainable development, but which fluctuate, fluctuated due to the protection of land resources as a result of the impact of uncontrollable factors and is closely related to natural factors;④The economic viability of sustainable from preparation stage of sustainable development into the preliminary stage of sustainable development. Although the sustained increase in the extent, but the overall level is not high, the need to increase investment in agriculture, increase in GDP and per capita income of farmers;⑤Social acceptability from Sustainable transition to the initial phase of the basic sustainable. Raising the employment rate and the effective management of land to promote sustainable development of society. Finally, for evaluation results, To propose a solution of the sustainable use of land resources in Cengong.