成都“1+7”经济区土地集约节约利用现状和产业结构调整潜力评价研究

为了评价成都"1+7"经济区的土地集约节约利用度,促进经济区土地集约节约利用,从土地投入水平、利用强度、产出效果、利用持续性4个方面构建了土地集约节约利用评价指标体系,采用层次分析法、德菲尔法确定指标权重,运用Matlab软件对2009年经济区的土地集约节约利用度进行模糊综合评价。结果表明:城市土地的投入水平和二三产业的发展水平直接影响到土地集约利用度,经济区土地集约节约利用总体水平较低,成都为中度集约,德阳为初步集约,绵阳、资阳为低度粗放,乐山、遂宁、眉山、雅安为中度粗放。笔者有针对性地提出了优化和调整产业结构,将集约利用的重点放在建成区现有土地的开发和挖潜改造上,尽可能地增加单位面积的土地收益,走内涵式发展道路等对策建议。

The Evaluation of Urban Land Intensive and Economical Utilization and the Analysis of the Industrial Restructuring Potential in Chengdu ‘1+7’ Economic Zone

In order to evaluate the intensive and economical utilization of land in Chengdu‘1 ＋ 7’economic zone,and to promote further intensive and economical land-use in these areas,the author had constructed an overall evaluation index system of urban land intensive and economical utilization from 4 aspects： land investment intensity,land use intensity,land output effectiveness,and land sustainable utility.The methods of AHP and Delphi technique were adopted to determine the weight of index,while the Matlab software was applied to conduct fuzzy comprehensive evaluation.The results showed that the land investment intensity,the second and tertiary industry development level directly influenced the urban land intensive and economical utilization.The efficiency of intensive land-use was at a low level in the districts mentioned： Chengdu was at a moderate intensity,Deyang at a preliminary intensity,Mianyang and Ziyang at a low-grade extension,and Leshan,Suining,Meishan and Ya’an at a moderate extension.Confronted with the severe status quo,the author objectively put forward suggestions,including optimizing and adjusting the industry structure,focusing on the development of the buit-up area and the exploration of the potential so as to increase the per land income and choose the mode of intensive development and so on.