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| 基于经济联系强度的乌鲁木齐都市圈 空间结构研究 | |
| 引用本文： | 乔旭宁,杨德刚,毛汉英,张小雷,吴得文,张豫芳.基于经济联系强度的乌鲁木齐都市圈 空间结构研究[J].地理科学进展,2007,26(6):95-105. |
| 作者姓名： | 乔旭宁 杨德刚 毛汉英 张小雷 吴得文 张豫芳 |
| 作者单位： | 1. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011;中国科学院研究生院,北京,100049 2. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011 3. 中国科学院地理科学与资源研究所,北京,100101 |
| 基金项目： | 中国科学院知识创新工程项目 |
| 摘 要： | 从经济联系强度的角度出发, 运用分形理论对乌鲁木齐都市圈的空间结构进行研究, 计算 了都市圈内城市间经济联系强度。对比分形的自相似特征, 分析了都市圈经济联系强度的空间分 布情况, 指出都市圈存在中心城市辐射力不足、对其他城市发展带动力弱等问题。结合产业的相 似度, 探讨了提高中心城市经济辐射力的优化方案, 结果表明乌鲁木齐、米泉市、昌吉市作为一个 经济区统一规划, 经济联系强度分维值是以乌鲁木齐市为中心的近2 倍, 都市圈空间结构明显优 化。在对优化方案进行深入分析的基础上, 发现乌鲁木齐都市圈经济联系强度扩散的空间特征: ( 1) 中心城市的经济辐射能力以及周边地区对中心城市经济辐射力的接受能力, 随距离增加呈现 出按指数函数衰减; ( 2) 梯度扩散与城市的等级规模有关, 城市等级规模小, 对经济辐射的接受能 力弱, 可能出现跃迁现象。在经济扩散过程中, 两种特征同时并存, 前者占主导地位。 |
| 关 键 词： | 经济联系强度 都市圈 分维值 空间结构 乌鲁木齐 |
| 收稿时间： | 6/1/2007 12:00:00 AM |
| 修稿时间： | 9/1/2007 12:00:00 AM |
Study on Spatial Structur e of Urumqi Metropolitan Area Based on Economic Relation Intensity |
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| QIAO Xuning,YANG Degang,MAO Hanying,ZHANG Xiaolei,WU Dewen,ZHANG Yufang.Study on Spatial Structur e of Urumqi Metropolitan Area Based on Economic Relation Intensity[J].Progress in Geography,2007,26(6):95-105. | |
| Authors: | QIAO Xuning YANG Degang MAO Hanying ZHANG Xiaolei WU Dewen ZHANG Yufang |
| Institution: | 1. Xinjiang Institute of Ecology and Geography, CAS Urumqi, Xinjiang 830011, China| 2. Institute of Geography and Natural Resource Research, Beijing 100101, China| 3. Graduate School, CAS, Beijing 100049, China |
| Abstract: | Based on fractal theory,spatial structure of Urumqi Metropolitan Area is studied;and the economic relation intensities amongst different cities and counties are calculated.In comparison with self-affine fractal characteristics,the spatial distributions of economic relation intensity are analyzed.It is pointed out that the radiation of central city is weak.Combined with degree of industries' similarity,measures of optimization are discussed.It shows that Urumqi,Miquan and Changji are melt into one economic region,and fractal dimension of economic relation intensity is nearly as twice as that of centre in Urumqi.The spatial structure of Metropolitan Area can be further optimized.Based on analysis of optimized plan,two characteristics are found: first of all,economic radiating power and the acceptability of cities around the core region present the law of decaying according to the exponential function with increase of distance.Secondly,gradient diffusion depends on city's rank and scale.Economic diffusion may bypass the cities whose ranks are low and reach the cities that from the core region but with higher ranks are farther.During the course of economic diffusion,two characteristics co-exist,and the former law is more manifest. |
| Keywords: | economic relation intensity metropolitan area fractal dimension spatial structure Urumqi |
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