| 长株潭地区土地可持续利用综合评价及空间分区 |
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| 引用本文： | 刘 庆,陈利根.长株潭地区土地可持续利用综合评价及空间分区[J].农业工程学报,2013,29(6):245-253. |
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| 作者姓名： | 刘 庆 陈利根 |
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| 作者单位： | 1. 湖南农业大学资源环境学院,长沙 410128
2. 南京农业大学公共管理学院,南京 210095 |
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| 基金项目： | 湖南省科技厅软科学项目（2011ZK5011）；湖南省教育厅科学研究项目（11C0649） |
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| 摘 要： | 为解决制约经济社会发展的资源约束难题,实现土地资源可持续利用,该文通过土地可持续利用综合评价深入了解长株潭地区土地可持续利用的空间格局,选择代表土地利用经济效益化、土地利用集约化、土地利用环境生态化和土地利用社会和谐化的22个因子,运用因子分析法和多指标综合评价法计算长株潭地区土地可持续利用综合分值。同时结合系统聚类方法,应用GIS软件绘制了该区的土地可持续综合利用分布图。研究结果表明长株潭地区的大部分县区土地利用处于可持续起步阶段,可持续利用水平有待整体提高;在空间分布上将研究区具体划分为5类土地可持续综合利用区,土地资源可持续利用具有明显的区域层次,呈现出不均衡的发展格局。结合区域具体分区的汇总结果,并对该区域的土地开发和利用工作提出了针对性的调整布局建议。该文为长株潭地区土地开发和利用决策的制定提供科学依据。
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| 关 键 词： | 土地利用 地理信息系统 经济 生态区 土地可持续利用 综合评价 长株潭地区 |
| 收稿时间： | 2012/8/31 0:00:00 |
| 修稿时间： | 1/6/2013 12:00:00 AM |
Comprehensive evaluation and spatial partition of sustainable utilization of land in Chang-Zhu-Tan region |
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| Liu Qing and Chen Ligen.Comprehensive evaluation and spatial partition of sustainable utilization of land in Chang-Zhu-Tan region[J].Transactions of the Chinese Society of Agricultural Engineering,2013,29(6):245-253. |
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| Authors: | Liu Qing and Chen Ligen |
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| Institution: | 1.College of Resource and Environment,Hunan Agricultural University,Changsha 410128,China;2.College of Public Administration,Nanjing Agriculture University,Nanjing 210095,China) |
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| Abstract: | Abstract: Along with the sustainable development theory gradually extending to land fields, the concept of sustainable land use has already been widely accepted in the world, research on the sustainable land use also has received popular international academic attention and has become a hot spot in land science study. Sustainable land use, which is the premise and foundation of sustainable development of regional resources, the environment, the economy, and society, has been widely carried out. Shortage of lands is one of the principal obstacles to explore resource-conservation & environment-friendly development mechanisms in the Chang-Zhu-Tan region. It is important to solve the resource constraints problem of restricting economic and social development and to implement sustainable land use projects in order to comprehensively evaluate sustainable land-use level, deeply investigate the current space pattern situation, and provide a scientific basis for guiding land development and policymaking for land management. Taking the Chang-Zhu-Tan region as an example, from a resource-conservation & environment-friendly system point of view, selecting 22 indicators representing four aspects including (a) the economic benefit of land use, (b) intensive land uses, (c) the ecological environment of land use, and (d) social harmony of land use, the comprehensive scores of sustainable land use in the Chang-Zhu-Tan region were calculated by factor analysis and a comprehensive evaluation method in this paper. Combining clustering analysis, maps of comprehensive spatial partition patterns of sustainable land use were drawn by applying GIS. The specific research methods and steps are as follows: 1) On the basis of dimensionless processing to each index by a standardization method, the weights and scores of the principal component factors were calculated by using principal component analysis, and the comprehensive scores or evaluation values of sustainable land use were estimated by an index evaluation method in the Chang-Zhu-Tan region; 2) The spatial pattern of sustainable land use status was analyzed, and regional levels of sustainable land use were classified; and 3) Based on the classification of spatial partitions, clustering analysis was used to eliminate subjective effects, to explain the space heterogeneity status of sustainable land use, and to validate the rationality of front level classifications in the Chang-Zhu-Tan region. All these steps were completely calculated using SPSS 13.0. Based on the above analysis, results showed that: Most of the counties were at the beginning of sustainable development in the Chang-Zhu-Tan region; individual counties (cities) were in a sustainable utilization stage or sustainable development stage - that is to say, the sustainable land use level should be improved. At the same time, there was still an obvious, regional level of sustainable land use in the Chang-Zhu-Tan region, unbalanced regional development of sustainable land use in the spatial distribution in the Chang-Zhu-Tan region, and the study area was divided into two types of development (balanced and unbalanced development) and five comprehensive spatial partitions, which generally exhibited trends of unbalanced development patterns. On the basis of regionally specific division of the summary results, some suggestions were proposed for future layout adjustments for land development and utilization. |
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| Keywords: | land use geographic information systems economics ecotope sustainable utilization of land comprehensive evaluation Chang-Zhu-Tan region |
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