苏南地区建设用地扩展类型及景观格局分析

发布时间：2018-05-04 19:22

本文选题：建设用地 + 扩展类型　；参考：《长江流域资源与环境》2014年10期

【摘要】：改革开放以来,随着苏南地区经济高速发展,工业化及城市化进程加快,导致建设用地急剧扩张。为了研究苏南建设用地扩展类型,基于1980~2010年建设用地数据,利用ArcGIS 9.3软件识别并提取了3种建设用地扩展类型:填充型、边缘增长型和跳跃型,并分析了建设用地扩展类型景观格局时空动态及其驱动力。结果表明:1980~2010年,苏南地区的建设用地面积增加了445.82%,其中1980~2005年增加了163.73%;2005~2010年增加了106.96%,常州市建设用地的扩展速率最大,为752.86%。1980~2005年,苏南地区边缘增长型占据了74.03%,其次是跳跃型与填充型,而2005~2010年,建设用地扩展类型的比重仍与1980~2005时段相一致,但变化更为剧烈。建设用地扩展类型的斑块个数均处于增加趋势,3种扩展类型的形状区域复杂,建设用地扩张景观类型破碎化严重但其链接度仍较高。苏南5市的填充型扩展类型主要集中于城市中心附近,而跳跃型主要分布于远离城市的区域。苏南地区经济快速发展、人口增加、工业化进程、房地产投资、外资直接投资、固定资产投资都在影响着建设用地的扩展。
[Abstract]:Since the reform and opening up, with the rapid development of economy, industrialization and urbanization in southern Jiangsu, the construction land has expanded rapidly. In order to study the types of construction land expansion in southern Jiangsu, based on the data of construction land from 1980 to 2010, three types of construction land expansion were identified and extracted by using ArcGIS 9.3 software: filling type, edge growing type and jumping type. The spatiotemporal dynamics and driving force of landscape pattern of construction land expansion type are analyzed. The results show that the area of construction land in southern Jiangsu increased by 445.82from 1980 to 2010, and the area of construction land increased by 163.73i from 2005 to 2010 by 106.96. The expansion rate of construction land in Changzhou was the highest, which was 752.86. 1980-2005. The marginal growth type in southern Jiangsu occupied 74.03, followed by jump type and fill type. From 2005 to 2010, the proportion of expansion type of construction land was still the same as that of 1980 ~ 2005, but the change was more drastic. The number of patches of construction land expansion type is in the increasing trend. The shape regions of three kinds of expansion types are complex. The landscape types of construction land expansion landscape are broken seriously but their linking degree is still relatively high. The filling expansion types of five cities in southern Jiangsu are mainly located near the city center, while the jump type is mainly distributed in the area far away from the city. The rapid economic development, population increase, industrialization process, real estate investment, foreign direct investment and fixed asset investment in southern Jiangsu are all influencing the expansion of construction land.
【作者单位】：中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室;中国科学院大学;特里尔大学环境遥感与地理信息系;南京林业大学风景园林学院;
【基金】：国家自然科学基金重点基金项目:长江三角洲区域一体化空间组织机理及优化研究(No.41130750) 中国科学院南京地理与湖泊研究所135项目(NIGLAS2012135006) 中国科学院知识创新工程重大项目“流域污染源分区分类核算与减排分析及管理平台校验”(KZZD-EW-10-04)
【分类号】：P208;F293.2

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