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生态学杂志 ›› 2009, Vol. 28 ›› Issue (12): 2586-2592.

• 研究报告 • 上一篇    下一篇

城镇聚落斑块的异速增长与板块效应——以苏州、无锡、常州地区为例

杨雪姣1;刘茂松1**;徐驰1;张明娟1, 2;盛晟1;翟可1   

  1. 1南京大学生命科学院|南京 210093; |2南京农业大学园艺学院|南京 210095
  • 出版日期:2009-12-10 发布日期:2009-12-10

Differentially rated growth and plate effect of settlement patches in city and town: A case study in Suzhou, Wuxi, and Changzhou regions.

YANG Xue-jiao1;LIU Mao-song1;XU Chi1 ;ZHANG Ming-juan1,2;SHENG Sheng1 ;ZHAI Ke1   

  1. 1School of Life Sciences, Nanjing University, Nanjing 210093, China|2College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
  • Online:2009-12-10 Published:2009-12-10

摘要: 为在区域水平上揭示城市化过程中聚落的异速增长过程及其规律性,本文以苏州、无锡和常州地区为研究对象,利用1979、1991、2001和2005年4期Landsat遥感影像,应用全局空间自相关Moran’S I指数和局部空间自相关Getis-Ord Gi*指数对苏锡常地区城镇聚落规模相对增长率的空间自相关特征进行了研究。结果表明:1979—2005年间,研究区城镇聚落快速扩展,其整体规模增加了11.1倍,总体上经历了聚落规模快速增长、缓慢增长和快速增长3个阶段,且与相应时期经济规模的增长节律不同;3个时期城镇聚落斑块的相对增长率在全局上存在极显著的空间正相关关系,表明存在发展趋势相似的聚落相对集中分布的格局;研究区3个时期均存在局部空间自相关关系显著的若干高增长率聚落集中分布区和低增长率聚落集中分布区,形成一定范围内相邻聚落斑块间具一定联动性、相对增长率相对一致的若干板块。不同时期聚落板块的相对规模、空间范围、板块内聚落相对增长率有一定的趋势性变化。期间研究区总体上存在增长重心东移趋势。

关键词: 木质素锌肥, 无机锌肥, 玉米

Abstract: To reveal the settlement growth pattern during  urbanization on regional scale, the relative growth rates (RGRs) and spatial autocorrelations of settlement patches in Suzhou, Wuxi, and Changzhou regions were studied, based on the multitemporal Landsat images acquired in 1979, 1991, 2001, and 2005. In the study regions, the settlements in city and town expanded significantly from 1979 to 2005, with an increase of 11.1 times in area, and went through three transitional phases, i.e., rapid growth (1979-1991), slow growth (1991-2001), and rapid growth (2001-2005), which differed from the economic growth rhythms. A significant positive global spatial autocorrelation in settlement RGR based on Moran’s I index was found in the three phases, indicating that the settlements with similar behaviors tended to be aggregated collectively. The results from local spatial association analysis (Getis-Ord Gi* index) indicated that there existed several landscape plates, within which, the adjacent settlements manifested coupling behaviors in terms of relatively consistent high or low RGRs. These landscape plates could be changed in size and spatial location in different phases, but as a whole, there existed an eastward shift of growth focus in the study regions in 1979-2005.

Key words: Zinc lignosulfonate, Inorganic Zn fertilizer, Corn