中国城市土地城市化水平与进程的空间评价

doi:10.11821/dlyj201412002

摘要/Abstract

摘要：

土地城市化在中国快速而持续的城市化进程中扮演的支撑与制约角色越来越明显,但目前对土地城市化水平的测度框架依然没有明确统一的认识。基于此,提出了一种可供参考的土地城市化率的概念与测度方法,并确定其阈值。以中国656个城市的城区为研究单元,以2000年和2010年城市建设用地面积为基本数据,采用城市建设用地面积、土地城市化率、城市土地扩展面积和城市土地扩展速度分别评价了中国城市的土地城市化规模、水平、绝对进程和相对进程的空间分异格局。并分析了九大类城市建设用地类型对土地城市化进程的贡献率。结果表明：① 近10年来,中国城市总体土地城市化率提高近一倍,由“金字塔式”等级分布逐渐转为“钥匙式”的分布格局;东部地区城市建设用地规模较大,但城区面积更大,使其土地城市化率的数值较低。② 省会城市和沿海城市群的城市土地扩展面积最大,呈现出行政等级式分异和空间集聚式分异的空间格局;城市土地扩展速度呈现出沿海城市群与其他城市分异的空间格局。规模越大的城市,土地城市化进程越明显。③ 近10年来中国土地城市化进程的两大核心用地增长类型是居住用地和工业用地;规模越大的城市,工业用地增长的驱动作用越显著;中西部地区和中小规模城市以居住用地增长为核心,沿海城市群和重要交通轴线城市以工业用地增长为主。

关键词: 土地城市化率, 土地城市化进程, 城市建设用地, 城区, 中国

Abstract:

The land urbanization plays an increasingly important role in China's rapid and sustained urbanization process. However, the process was not explicit and has not become an alternative method for measuring land urbanization level. In this context, this paper proposes concepts and measurement methods of land urbanization rate (LUR) for measuring land urbanization level. Meanwhile, thresholds of LUR are studied. Then, based on area of urban construction land of Chinese 656 cities in 2000 and 2010, spatial pattern of land urbanization dimensions, level, absolute process and relative process are evaluated in the aspects of the area of urban construction land, LUR, urban land expansion area (ULEA), and urban land expansion rate (ULER). Finally, contributions of nine types of urban construction land to land urbanization process are evaluated. The results show that: (1) the general land urbanization rate of Chinese cities has doubled in the past decade. Meanwhile, the spatial pattern has changed from pyramid-ranked distribution to keyless distribution. The eastern cities in China have larger urban construction land and larger urban areas than other cities, which both result in the lower land urbanization rates; (2) Provincial capital cities and coastal urban agglomerations have the largest ULEA, and the differentiation patterns of ULEA are featured by both spatial agglomeration and urban administrative level. ULER presents spatial differentiation between coastal urban agglomerations and other cities. In addition, the larger cities present more significant land urbanization process; (3) Residential land and industrial land were the two prime types of land expansion in China's land urbanization process from 2000 to 2010. The larger the city is, the more significant driving effect of industrial development is. In central and western regions and small and medium-sized cities of China, the major type of land expansion is residential land, while in coastal urban agglomerations and main traffic axis, the main type of land expansion is industrial land.

Key words: land urbanization rate, land urbanization process, urban construction land, urban area, China

王洋, 王少剑, 秦静. 中国城市土地城市化水平与进程的空间评价[J]. 地理研究, 2014, 33(12): 2228-2238.

Yang WANG, Shaojian WANG, Jing QIN. Spatial evaluation of land urbanization level and process in Chinese cities[J]. GEOGRAPHICAL RESEARCH, 2014, 33(12): 2228-2238.

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类别	城市规模分类	城市建设用地类型
类别	城市规模分类	居住用地	公共设施用地	工业用地	仓储用地	对外交通用地	道路广场用地	市政公用设施用地	绿地	特殊用地
2010年各类用地占城市建设用地比重(%)	小规模	35.31	12.11	16.95	3.47	3.83	11.65	3.53	11.30	1.85
	中等规模	33.07	12.29	18.72	3.33	4.31	11.52	3.72	11.30	1.74
	大规模	30.97	12.38	22.13	3.05	4.43	11.43	3.25	10.66	1.71
	特大规模	29.62	11.86	24.27	2.64	4.49	12.28	3.58	8.95	2.31
	全国	31.20	12.15	21.86	2.99	4.39	11.77	3.49	10.21	1.95
十年各类用地增加面积占城市建设用地增加面积的比重(%)	小规模	30.81	14.66	14.76	-2.46	-1.94	22.04	3.62	19.85	-1.33
	中等规模	31.46	12.76	18.20	0.95	2.10	15.35	3.55	15.12	0.51
	大规模	31.41	14.07	19.67	1.13	2.40	15.48	2.97	12.62	0.26
	特大规模	27.87	12.04	25.97	0.52	1.24	17.15	4.21	10.84	0.15
	全国	29.60	13.03	22.89	0.82	1.81	16.33	3.60	11.71	0.20