论文

郑州市2001~2007年城市扩张过程中城市用地景观特征分析

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  • 1. 中国科学院地理科学与资源研究所, 北京100101;
    2. 荷兰乌特勒支大学城市和区域规划系, 乌特勒支3508TC, 荷兰;
    3. 荷兰国际地理信息科学与地球观测学院 城市区域规划和地理信息管理系, 恩斯赫德7500AA, 荷兰;
    4. 国家发展和改革委员会中国城市和小城镇改革发展中心, 北京100045

收稿日期: 2009-10-10

  修回日期: 2009-12-28

  网络出版日期: 2010-07-20

基金资助

中国科学院第三期创新项目"中国城市化过程及典型都市密集区协调发展研究(KZCX2-YW-321)"资助。

Urban Expansion and Landscape Characteristics of Land Use in Zhengzhou City Dring 2001-2007

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  • 1. Department of Human Geography & Urban and Regional Planning, Utrecht University (UU), 3508TC Utrecht, the NL;
    2. Urban and Regional Planning and Geo-Information Management, International Institute for Geo-Information Science and Earth Observation (ITC), 7500AA Enschede, the NL;
    3. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101;
    4. China Center for City and Town Reform and Development, NDRC, Beijing 100045

Received date: 2009-10-10

  Revised date: 2009-12-28

  Online published: 2010-07-20

摘要

城市用地景观对理解城市扩张过程中土地利用的内部特征及其动态变化具有重要意义。利用2001年Landsat7和2007年Spot4影像,采用人工神经网络方法,提取郑州市土地覆被变化信息;并利用景观指数中的平均斑块面积指数、景观形状指数、平均分维指数和平均连接度指数对土地利用景观沿主要方向进行梯度分析。揭示了城市扩张与土地利用的景观变化是一个过程的两个方面;主要经济发展区已成为城市空间扩张的推动力,在提高平均地块面积和地块连通性方面起到一定积极作用,在距市中心10 km范围内紧凑度提高,整体上松散式和紧凑式扩张并存。

本文引用格式

杨振山, 蔡建明, 文辉 . 郑州市2001~2007年城市扩张过程中城市用地景观特征分析[J]. 地理科学, 2010 , 30(4) : 600 -605 . DOI: 10.13249/j.cnki.sgs.2010.04.600

Abstract

Rapid urbanization, especially the speed and scale of the current Chinese urbanization, requires detailed understanding of spatial characteristics of the changing of urban landscape. This has a significant implication for rational and effective urban land use. The purpose of this paper is to derive the information of the landscape change during the spatial expansion of Zhengzhou City during 2001-2007. We detected the change of land cover avail of the remote sensed imageries of Landsat7 ETM and Spot 4. Further, we calculated the landscape matrices of mean patch size, landscape shape index, landscape fragment index, and contiguity index to measure the size of land plots, compactness of the developing, shape and connectivity respectively. In order to show the heterogeneous character of the spatial expansion, the gradient analysis was conducted in the range of 20 km radius centered the place nearby the city center, Erqi Square. The change of detection of land cover illustrated that, during that period, urban land use increased 70.6 km2 at the average annual rate of 4%, and the east, northeast and southeast were the main urban land use directions of urban expansion. The speed of expanding of the east part was nearly as two times as that of west part. The landscape matrix analysis showed that the size of land parcels increased in general, yet with a great variation. Generally, the change of landscape and urban expansion are correlated. The areas with economic-spatial driver such as the Zhengdong Xinqu and Economic Zone become a lead in the urban expansion. In the process, the size of plots and connectivity increase. Within the 10 km radius to the center, the urban land of the city became more compact, especially in the rapid urbanizing directions. But beyond that distance, the developmental pattern could be compact or loose. By comparing, landscape is slightly changed along the corridor with less economic drivers. These results call for particular attentions of planners to optimizing urban spatial structure.

参考文献

[1] 朱英明,姚士谋,李玉见.中国城市化进程中的城市空间演化研究[J].地理学与国土研究,2000,16(5):12~16.
[2] 管驰明,崔功豪.100多年来中国城市空间分布格局的时空演变研究[J].地域研究与开发,2004,23(5):28~32.
[3] 李加林,许继琴,李伟芳,等.长江三角洲地区城市用地增长的时空分析[J].地理学报,2007,62(4):437~447.
[4] 陈群元,尹长林,陈光辉.长沙城市形态与用地类型的时空演化特征[J].地理科学,2007,27(2):273~280.
[5] 董晓峰,刘理臣,张宾,等.基于GIS和RS兰州都市圈土地利用变化研究[J].兰州大学学报(自然科学版),2005,41(1):8~12.
[6] 张庭伟.1990年代中国城市空间结构的变化及其动力机制[J].城市规划,2001,25(7):7~14.
[7] 谈明洪,李秀彬,吕昌河.中国城市用地扩张的驱动力分析[J].经济地理,2003,23(5):635~639.
[8] 王冠贤,魏清泉.广州城市空间形态扩展中土地供应动力机制的作用[J].热带地理,2002,22(1):43~47.
[9] 杨青生,黎夏.多智能体与元胞自动机结合及城市用地扩张模拟[J].地理科学,2007,27(3):542~548.
[10] 李晓文,方精云,朴世龙.上海城市用地扩展强度、模式及其空间分异特征[J].自然资源学报,2003,18(4):412~422.
[11] 刘晓辉,吕宪国,董贵华.分维模型在土地利用研究中的应用[J].地理科学,2007,28(6):765~769.
[12] 闫小培,毛蒋心,普军.巨型城市区域土地利用变化的人文因素分析——以珠江三角洲地区为例[J].地理学报,2006,61(6):613~624.
[13] 朱文明,陶康华.长江三角洲城镇空间格局与区域经济相关分析[J].城市研究,2000,(1):12~17.
[14] 孙亚杰,王清旭,陆兆华.城市化对北京市景观格局的影响[J].应用生态学报,2005,(7):1366~1370.
[15] 李团胜,肖笃宁.沈阳市城市景观结构分析[J].地理科学,2002,22(6):717~723.
[16] 王军,邱扬,杨磊,等.基于GIS 的土地整理景观效应分析[J].地理研究,2007,26(2):258~265.
[17] McDonnell M J,Pickett S T A.Ecosystem structure and function along urban rural gradients-an unexploited opportunity for ecology[J].Ecology,1990,71(4):1232-1237.
[18] Weng Y C.Spatiotemporal changes of landscape pattern in response to urbanization[J].Landscape and Urban Planning,2007,81(4-5):341-353.
[19] Luck M,Wu J.A gradient analysis of urban landscape pattern:a case study from the Phoenix metropolitan region, Arizona,USA[J].Landscape Ecology,2002,17(4):327-339.
[20] Zhu M.pacts of road corridors on urban landscape pattern:a gradient analysis with changing grain size in Shanghai,China[J].Landscape Ecology,2006,21(5):723-734.
[21] Berling-Wolff S,Wu J.Modeling urban landscape dynamics:a case study in Phoenix,USA[J].Urban Ecosystems,2004,7(3):215-240.
[22] McGarigal K,Cushman S A,Neel M C,et al.FRAGSTATS:spatial pattern analysis program for categorical maps.2002,Computer software program produced at the University of Massachusetts,Amherst:http://www.umass.edu/landeco/research/fragstats/fragstats.html.
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