Evaluation Framework And Methods For Environmental Friendly Use Of Land Resources At County Level

Land resource is one of important natural resources. As a joint product from economical and society's integration, land resource is the most basic natural resource for living. Land resource places the base for the human survival and the development foundation. The current researches, based on the field operation such as on-the-spot investigation, the office work acquisition of information and the geographic information system (GIS), take use of techniques in data aquistion and the processing. The paper started on the illustration of the ecology supporting capacity theory as well as sustainable development theory, and discussed land resource use environment friendly concept and its foundation. From the view of ecological environment, economy and social requirement, the paper constructed a land resource use environment friendly evaluation framework and established in the research county land use evaluation by a hierarchy system and grading standards. By combining two models, the comprehensive multiple variables evaluation and the single target evaluation, the paper established land-use environment friendly assessment model at county level. Taking the Henan Province Changge (county level) as an example, the paper used the proposed assessment method and applied both evaluation models, to study the city's land resource use environment friendly condition. According to the land use status and analysis of the dynamic change and the evaluation results of land resources in the environment friendly use of Changge city.In the light of different natural and geographical conditions of Changge city and constructed the different environment friendly land utilization pattern. The work includes:(1) Land resource environment friendly-use evaluation theories were studied. The land resource environment friendly-use research is based on multiple theories, including sustainable development, systems science theory, the ecological agriculture theory and so on. In view of the county territory land resource environment friendly use, the paper further analyzed its concept of environment friendly-use land use.The study considers the environment friendly land utilization is which to follow natural law as the norm, the same connotation with sustainable land use, in accordance with resource and environmental capacity, thecomplement each other with building socialist new countryside, and understanding the current knowledge and technique, to pursue harmony and coexist of people and nature. (2) Comprehensive land resource environment friendly use evaluating index system and assessment methods at county level. The paper analyzed the principle of the land resource environment friendly use evaluation and evalution methods systematically, taking four microbe groups in target layer, rule layer, evaluation index layer and finite element index laye as basic frame of the appraisal indexe system, setting37evaluation indicators From three aspects of the ecological environment, economy and society and constructed a land resource environment friendly use evaluating index system at county level.(3) The paper conducted an empirical study using Changge county territory as an example.The comprehensive evaluation conclusions are as follows:the environment-friendly utilization level in land resources of Changge City In the11years was the general continuous slow increase, from0.7931in2010to0.6389in2000whose standard values have increased by0.1548, increasing0.01408about the annual average, and Changge Cityland use leve lwas from unfriendly stage to transition to the critical-friendly stage, until the current friendly stage, ollowed by economic feasibility whose standard values increases0.1891In the11years. The eco-friendly level is the minimum contribution to the land whose standard value has risen by only0.0275in the past11years.(4) The paper studied the environment friendly land utilization pattern design, from environment friendly aspect. It proposed the corresponding region environment friendly land utilization pattern based on the land resource environment friendly use evaluation results, according to the method of Systematic Cluster Analysis, the current status of land use division to three different regions, changge City current status of land use is divided into three different areas, that is to say:I ecological harmony District, II ecological control and, â…¢ecological construction area, and aiming at functional areas for different land use, and puting forward the environment friendly land utilization pattern.The main creative points of this paper as follows:(1) The paper discussed land resource environment friendly use evaluation theory for county-level. This article proposed land resource environment friendly-use theory and argued that the theory should be based on sustainable development, system science theory, and ecological agriculture. In view of the county-level territory land resource environment friendly use, the paper further discussed the theories like land resource's characteristic and the ownership, the land resource environment friendly use's concept, the implications and the key content carried on land use analysis and the evaluation. It is thought that the land resource environment friendly use is the land resource sustainable use in space and time. In addition, it is also the sustainable development in the resources use domain utilization.(2) The paper studied and proposed systematically the county level land resource environment friendly use evaluating index system and the quality evaluation methods. This article proposed that the land resource environment friendly use evaluation principle, arguing that the method and the process should take the ecology supporting capacity theory and the sustainable development as foundations. The evaluation index system should be from the natural resource, the ecological environment and the social economy perspective to build land use evaluation system. Practically the ecological environment friendliness, economical feasible and social acceptabilityshould be taken to carry on the quality evaluation. The paper proposed the method to construct the county territory land resource environment friendly use evaluating index system. Based on the evaluation index system, the paper proposed the corresponding county level land resource environment friendly use's assessment methods, mainly including the synthesis exponential method and the single target assessment method. It is thought that the two methods can be used together to unify quality synthetic evaluation method. In addition, the paper proposed the need to carry on the ecosystem service function value assessment as adjust for land use evaluation in land environment friendly framework.(3) The paper proposed the concept of the environment friendly land utilization pattern district design. In a generalized analysis land resource environment friendly use condition's foundation, the paper proposed that environment friendly district design should be based on the land resource environment friendly use measure results. It is believed that further research through the cluster analysis, on-the-spot investigation, the expert consult, and other technologies and the methods including GIS technology should be integrated to carry on for the land use pattern plan and the land utilization, according to the region characteristic environment friendly land utilization patterns.