| 甘肃省土地集约利用与经济发展的时空差异分析 |
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| 引用本文： | 潘竟虎,郑凤娟,杨东.甘肃省土地集约利用与经济发展的时空差异分析[J].资源科学,2011,33(4):684-689. |
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| 作者姓名： | 潘竟虎 郑凤娟 杨东 |
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| 作者单位： | 西北师范大学地理与环境科学学院,兰州,730070 |
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| 基金项目： | 国家自然科学基金(编号：41061017)；西北师范大学知识与科技创新工程项目(编号：NWNU-KJCXGC-03-60)。 |
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| 摘 要： | 以甘肃省14个地级市土地利用变更数据和社会经济数据为依据,建立土地集约利用与经济发展水平评价指标体系,运用基于熵权法的多因素综合评价方法,对甘肃省1997年-2006年间土地经济集约利用度以及经济发展水平进行评价;采用重心模型和ESDA分析了市域土地经济集约利用、经济发展水平的时空差异特征以及二者的相关度。结果表明:从时间变化特征来看,甘肃省土地集约利用水平与经济发展水平均呈现总体上升趋势,但地区之间存在差异;除1998年外,市域间经济发展水平和土地集约利用的差距不断增大。从空间特征看,经济发展水平地域上呈现由西向东、由北向南递减状态,而土地经济集约利用则以兰州为中心向外递减。土地集约利用重心表现为东南向西北方向迁移,而经济发展水平重心则由西向东迁移。土地集约利用与经济发展水平的空间协调度较差。
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| 关 键 词： | 土地集约利用 经济发展水平 时空差异 ESDA 甘肃省 |
| 收稿时间： | 9/3/2010 12:00:00 AM |
Spatial-Temporal Disparities in Intensive Land Use and Economic Development in Gansu Province |
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| PAN Jinghu,ZHENG Fengjuan and YANG Dong.Spatial-Temporal Disparities in Intensive Land Use and Economic Development in Gansu Province[J].Resources Science,2011,33(4):684-689. |
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| Authors: | PAN Jinghu ZHENG Fengjuan and YANG Dong |
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| Institution: | College of Geographic and Environmental Science, Northwest Normal University, Lanzhou 730070, China;College of Geographic and Environmental Science, Northwest Normal University, Lanzhou 730070, China;College of Geographic and Environmental Science, Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | Intensive land use has not only become one of the most important components in circular economy and development of society, but also been a key issue in national land resource management. Understanding the mechanism, process, and effects of land intensive use is helpful to optimize the spatial structure, improve the efficiency of land use, ease the pressure of development brought by resource and environmental constraints, and promote sustainable urban development. However, much attention has been paid to a variety of social and ecological problems, like numerous land and capital waste, accompanied with rapid urbanization with development zone and real estate crazes currently. Gansu is a province of an underdeveloped economy in China. In the context of accelerating rapid urbanization, growing requirements for building land, increasingly important grain safety issues, large population, and inadequate land and reserve resources of cultivated land, land intensive use and optimization distribution are not only directly related to reasonable land use, but also influence the development of economy and society. It is urgent to exploit its potential so as to achieve a higher efficiency of land use. Based on data of land use and economic statistics of 14 cities in Gansu Province during the period 1997-2006, the authors investigated land intensive use and local economic development. By constructing an evaluation system of urban land intensive use and economic development, and using the entropy-based multi-factors comprehensive evaluation, the level of land economic intensive use and economic development during the period 1997-2006 was evaluated. Meanwhile, the exploratory spatial data analysis method and gravity model approach were jointly used to analyze the spatial-temporal variation in land intensive use and economic development, and the coordination between them in Gansu Province. Results indicated that, as for temporal characteristic, the level of land intensive use and economic development was increasing; however, it varied with region. The gap between land intensive use and economic development was consistently increasing except for 1998. As for spatial characteristic, the level of developmental degree decreased from the north to the south, and from the west to the east of the province, whereas the level of land intensive use decreased from the centre to the external regions. The coordination level of intensive land use and economic development was generally low. The results from this study would offer a meaningful reference for investigating intensive land use and greatly benefit land utilization in Gansu Province. |
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| Keywords: | Land intensive use Economic development Spatial disparity ESDA Gansu |
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