基于AHP与模糊综合评价的土地整治项目实施后效益评价

对土地整治项目实施后效益评价进行科学研究，对于规范与指导土地整治的实践活动，实现土地整治的科学决策具有重要意义。以湖北省长阳土家族自治县土地整治项目为例，以相关研究理论为指导，在充分收集项目区基础资料的基础上建立了一个由15个指标所组成的效益评价指标体系，将景观效益作为一个独立的评价方面，拟为土地整治效益评价的完善做出有益探索。运用层次分析法确定各指标因子的权重，以多层次模糊综合评价法构建评价模型，对项目区土地整治前后的经济效益、社会效益、生态效益、景观效益和综合效益进行了评价研究。研究表明项目实施使得各效益均有明显提高，但社会效益和生态效益还有较大提升空间。另外，景观效益潜力巨大，在今后的项目实施中应得到更多的重视，并将其作为土地整治项目实施后效益评价研究的一项重要内容

POST-BENEFIT EVALUATION OF LAND CONSOLIDATION PROJECT IMPLEMENTATION BASED ON AHP AND FUZZY COMPREHENSIVE EVALUATION

China is in the nexus of the 12th Five Year Plan at present.The continuous growth of the total population,the rapid increase of urbanization rate and the consumption level of urban and rural residents cause the demand of the whole society for agricultural products increasing. However, the fact is the shortage of arable land resources, soil contamination,and the ecological degradation,and this will be a serious threat to economic and social sustainable development in China.Land consolidation as a way to promote the scientific and effective allocation of arable land resources,to improve land utilization,to coordinate the relationship between people and land and to ensure the dynamic balance of the total arable land has become the inevitable choice to alleviate the problem.Land consolidation project has conducted more than ten years from the late 1990s in our country.The problems of how effective the land consolidation is,where need to be improved and what kind of direction of the future land consolidation should be will have a direct impact on the development of land consolidation in China.The post benefit evaluation of land consolidation project implementation is an important topic in land consolidation,and a scientific research on the post benefit evaluation of land consolidation project implementation is of great significance for normalizing and guiding land consolidation practice and for realizing scientific decision of land consolidation.Taking land consolidation project in Changyang Tujia Autonomous country,Hubei province as a case,with the related theories as a guide and the basic data of the project area,the evaluation index system that consists of 15 index was established,the landscape benefit was taken as an independent hand to evaluation in order to make some beneficial exploration for the improvement of land consolidation benefit evaluation.Using analytic hierarchy process (AHP) to calculate the weight of every index and the multi level fuzzy comprehensive evaluation method to establish the evaluation model,the economic benefits,social benefits,ecological benefits,landscape benefit and comprehensive benefit before and after the project were evaluated.The research results show as follows.After the implementation of the land consolidation project,the project area economic benefit evaluation grade improved from grade C to grade B+,and the score from 3342 points to 8419 points;social benefit evaluation grade improved from grade C to grade B+,and the score from 3352 points to 8208 points;ecological benefit evaluation grade improved from grade C to grade B+,and the score from 3446 points to 8050 points;landscape benefit evaluation grade improved from grade C to grade A,and the score from 3273 points to 8903 points;comprehensive benefit evaluation grade improved from grade C to grade B+,and the score from 3370 points to 8340 points.Therefore,all the benefits had an obvious improvement,but there was still a large room for improvement to social and ecological benefit.In addition,the landscape benefit had great potential,and it should get more attention in the future project and be regarded as one of the important content of the post benefit evaluation of land consolidation project implementation