基于土地利用格局的浙中城市群区域景观稳定性研究  

Landscape stability study: The urban agglomeration of middle Zhejiang based on spatial pattern in land use

作　　者：王静敏 王益澄[1] 金邑霞 汪聪聪 赵一然 张悦[1,2] WANG Jing-min;WANG Yi-cheng;JIN Yi-xia;WANG Cong-cong;ZHAO Yi-ran;ZHANG Yue(Institute of Human Geography ＆ Urban-rural Planning,Ningbo University,Ningbo 315211,China;Ningbo University-University of Angers Joint Institute,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学人文地理与城乡规划研究所,浙江宁波315211 [2]宁波大学宁波大学昂热大学联合学院,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2018年第6期88-96,共9页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(41771174)

摘　　要：土地利用/覆盖变化不仅影响城市生态系统的平衡,而且会引发很多复杂的社会问题,成为地理学人地关系综合研究热点领域.本文运用1990、2000和2014年的遥感影像数据,在标准假彩色分类基础上,计算景观指数并构建景观稳定性模型,解析土地利用视角下浙中城市群区域的景观稳定性变化.研究发现:(1)1990～2014年的24 a间,林地占土地总面积的百分比逐年递增,其中1990～2000年增长较少,2000～2014年增长较多;水域占比逐年下降,1990～2000年从4.94%降到2.90%;随着建设用地的逐年上涨,耕地和未利用地的占比逐年下降;浙中城市群东北方向微量的湿地, 24 a间面积占比下降了近一半,从0.31%降到0.16%.(2)景观结构及其变化表明,城市的斑块形状从简单化向复杂化发展,这与城市的发展由无序到有序,低级到高级的过程相一致;耕地、林地和湿地受人类活动的影响逐渐加剧,抗干扰能力减弱.(3)浙中城市群的景观稳定性从1990年到2000年大幅度下降, 2000年到2014年增强;类型尺度上,除未利用地外的其他5类景观的稳定性都经历了先降低后增强的过程,而未利用地的稳定性从1990年开始持续增强, 2000年到2014年间虽有所下降但下降幅度不大.Land use-and-cover changes not only affect the balance of urban ecosystems, but also lead to many complex social issues. So it has been becoming a hot subject in the study of human relations in geography. In this paper, we conduct the investigation using the remote sensing image data collected in the year 1990, 2000 and 2014. By utilizing the standard false color classification approach, the landscape index is calculated and the landscape stability model is constructed. The landscape stability of the urban agglomeration in the middle of Zhejiang Province is analyzed in terms of land use. Through this study we conclude： （1） In the past 24 years between 1990 and 2014, the percentage of woodland in the total area of land increased year by year, and the increase from 1990 to 2000 is relatively small, and the increase from 2000 to 2014 is relatively more significant. In comparison, the proportion of water decreased on an annual basis, dropping from 4.94% in 1990 to 2.90% in 2000. As the area of construction land increases each year, the proportion of arable land and unused land decreased accordingly. There is a slight wetland change in the northeastern of the urban agglomeration in the middle of Zhejiang Province, and the proportion during the studied years has declined by nearly half, i.e., from 0.31% to 0.16%. （2） The landscape structure and its changes show that the development of urban geographic pattern runs from simple to complex, which is consistent with the development of the city running from disorder to order, low level to high level. Cultivated land, woodland and wetland are gradually affected by human activities, and the anti-interference ability is weakened. （3） The landscape stability of the urban agglomeration in the middle of Zhejiang Province decreased significantly from year 1990 to 2000, and it also witnessed the increase from year 2000 to 2014. In terms of types and scales, the stability of the other five types of lands excluding the unused land, has undergone a process of first weake

关 键 词：土地利用/覆盖变化(LUCC) 浙中城市群 景观稳定性 

分 类 号：K901[历史地理—人文地理学]