| 基于可达性与数据场的长三角经济区空间场能 |
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| 引用本文： | 鲁莎莎,关兴良,王振波,宋辞.基于可达性与数据场的长三角经济区空间场能[J].地理研究,2013,32(2):295-306. |
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| 作者姓名： | 鲁莎莎 关兴良 王振波 宋辞 |
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| 作者单位： | 1. 北京林业大学经济管理学院, 北京 100083;
2. 全国市长研修学院, 北京 100029;
3. 中国科学院地理科学与资源研究所, 北京 100101 |
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| 基金项目： | 中央高校基本科研业务专项基金项目(RW2011-30);北京林业大学新进教师科研启动基金项目(200-1242741) |
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| 摘 要： | 空间场能是区域发展"龙头"借助区域联系通道带动外围地区发展的抽象表达,可有效刻画区域发展格局与空间差异。借助ArcGIS软件平台,采用栅格成本加权距离法、k阶数据场等模型,综合测度了长三角经济区区域可达性与空间场能,并揭示了该区域空间场能的空间格局与演变特征。研究表明:①2000年以来,长三角经济区中心城市取得了长足发展,且总体倾于均衡发展;②区域可达性条件不断改善,3 h时间圈的平均通达距离由2000年的81km提高到2008年的122 km;③区域空间场能显著增长且空间分异性显著,分布结构由单核“Z”字型向“多极”网络状形态转变;④长三角经济区空间场能分布格局可适度划分为高场能区、较高场能区、一般场能区、较低场能区、低场能区等5大类型,并呈现出圈层状特征与"两极分化"特征。
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| 关 键 词： | 空间场能 结节性指数 可达性 数据场 长三角经济区 |
| 收稿时间： | 2012-06-29 |
| 修稿时间： | 2012-10-24 |
Spatial field of the Yangtze River Delta Economic Zone:An application of regional accessibility and data field |
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| LU Shasha,GUAN Xingliang,WANG Zhenbo,SONG Ci.Spatial field of the Yangtze River Delta Economic Zone:An application of regional accessibility and data field[J].Geographical Research,2013,32(2):295-306. |
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| Authors: | LU Shasha GUAN Xingliang WANG Zhenbo SONG Ci |
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| Institution: | 1. School of Economics and Management, Beijing Forestry University, Beijing 100083, China;
2. National Academy for Mayors of China, Beijing 100029, China;
3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
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| Abstract: | Spatial field is an effective tool which can be used to describe the regional development pattern and spatial differences for the decision makers. With the application of principal components analysis, raster cost weighted distance method and k-order data fields, this paper attempts to comprehensively measure the nodality index for central cities, regional accessibility, as well as the spatial field in the Yangtze River Delta Economic Zone, and to reveal the spatial distribution and evolution of regional development. The results indicate that central cities in the Yangtze River Delta Economic Zone have made great progress during the past 10 years and this region tends to be evenly developed. Moreover, regional accessibility condition continues to be improved and the average accessible distance for 3 hours increased by 41 km (from 81 km in 2000 to 122 km in 2008). Most of the central cities in Yangtze River Delta Economic Zone have been covered in the "3-hour metropolitan area" of Shanghai except for Zhoushan and Taizhou. In addition, regional spatial field increased significantly from 2000 to 2008. The spatial heterogeneities are conspicuous and the overall situation reveals that the spatial field in the north is better than that in the south. The distribution pattern of spatial field appears to be single-core with a "Z"-shaped pattern in 2000, while that in 2008 tends to be a "multi-polar" network form. According to the natural breaks method, the distribution pattern of spatial field in Yangtze River Delta Economic Zone can be appropriately divided into five major types, i.e., higher field energy region, high field energy region, the transitional region, lower field energy region and low field energy region. Furthermore, the high field energy region is mainly located in the metropolitan areas of Shanghai, Nanjing, Hangzhou, Suzhou-Wuxi-Changzhou, and the development axis areas of Shanghai-Nanjing and Shanghai-Hangzhou. Most parts of the core and potential regions are located along the north wing of Yangtze River Delta Economic Zone. |
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| Keywords: | spatial field nodality index accessibility data field Yangtze River Delta Economic Zone |
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