重庆市不同空间尺度建设用地演进特征与景观格局分析

doi:10.11870/cjlyzyyhj201701005

长江流域资源与环境 >> 2017, Vol. 26 >> Issue (01): 35-46.doi: 10.11870/cjlyzyyhj201701005

重庆市不同空间尺度建设用地演进特征与景观格局分析

崔王平^1,2, 李阳兵^1,2, 郭辉¹, 陈萌萌^1,2

1. 重庆师范大学地理与旅游学院, 重庆 401331;
2. 重庆师范大学地理信息系统应用研究重点实验室, 重庆 401331

收稿日期:2016-05-06 修回日期:2016-09-24 出版日期:2017-01-20
通讯作者: 李阳兵,E-mail:li-yapin@sohu.com E-mail:li-yapin@sohu.com
作者简介:崔王平(1990~),男,硕士研究生,主要从事土地资源与土地管理研究.E-mail:1594053001@qq.com
基金资助:
国家自然科学基金委重大国际合作基金（41161140352）；国家自然科学基金（41261045）；重庆市教育委员会科学技术研究项目（KJ080818）；重庆师范大学研究生科研创新项目（YKC16003）

EVOLUTION CHARACTERISTIC OF DIFFERENT SPATIAL SCALE ABOUT CONSTRUCTION LAND AND LANDSCAPE PATTERN ANALYSIS ECOLOGY IN CHONGQING CITY

CUI Wang-ping^1,2, LI Yang-bing^1,2, GUO Hui¹, CHEN Meng-meng^1,2

1. College of Geographical Science, Chongqing Normal University, Chongqing 401331, China;
2. The key Laboratory of GIS Application Research, Chongqing Normal University, Chongqing 401331, China

Received:2016-05-06 Revised:2016-09-24 Online:2017-01-20
Supported by:
The National Natural Science Foundation of Major International Cooperation Fund (41161140352);National Natural Science Foundation of China (41261045);Chongqing Municipal Education Commission for Scientific and Technological Research Projects (KJ080818);Chongqing Normal University Graduate Student Research Innovation Project (YKC16003)

摘要/Abstract

摘要： 研究不同空间尺度下城市土地利用的演变过程和变化特征，有助于深入了解和揭示城市土地利用演变时空差异和内在影响机制。以重庆市主城区为例，基于研究区1978~2013年多时序的MSS和Landsat TM/ETM+遥感影像数据，利用ArcGIS技术和景观格局分析理论，从研究区整体尺度、区域尺度和各区尺度等3种空间尺度对研究区建设用地演进特征和景观格局动态变化进行分析。结果表明：（1）1978~2013年研究区不同空间尺度建设用地面积变化趋势基本相似，综合扩展程度指数变化特征也存在一定的规律。在2001年之后研究区建设用地演进过程由低缓发展向高速递增阶段过渡，各区尺度建设用地扩展深受地貌、经济、政策、交通等影响因素的干扰；（2）在不同空间尺度新增斑块数目对比中，边缘扩展模式与跳跃扩展模式的主导优势先后发生3次转换，而在新增斑块面积比对比中边缘扩展模式始终保持绝对优势，填充扩展模式分别在新增斑块数目和面积比的比较中均处于弱势；（3）随着时间的变化，就整体尺度上景观指数变化而言，景观破碎度和景观多样性明显增加，斑块形状趋于简单和规则化，斑块之间连通性不断提高，与城市化进程趋于吻合。但区域尺度和各区尺度深受国家政策环境的影响，景观指数变化则相对复杂。研究结论有助于从空间尺度对城市扩展信息进行挖掘和理解，为其城市规划和土地管理提供一定的科学依据。

关键词: 空间尺度, 城市扩展模式, 综合扩展程度指数, 重庆市

Abstract: The research on the evolution process and characteristics of land use at different spatial scales is helpful to understand and reveal the spatiotemporal differences and internal impact mechanism of urban land use pattern. Taking the central area of Chongqing as a study case in the paper, we used multiple remote sensing images from 1978 to 2013 and landscape pattern analysis to analyze the evolution characteristic of construction land and the dynamic changes of landscape pattern in the study area from three spatial scales (the whole scale, the regional scale and the district scale). The result showed that:(1) During the period from 1978 to 2013, the trend of the construction area variation was similar to different spatial scales of the study area, and the change characteristic of comprehensive expansion degree index was shown to be a certain degree of regularity on different spatial scales. After 2001, the development of low to high speed transitional stage was displayed in the evolution process of construction land, but the construction land of district-scale was interfered by topography,economics, politics, traffic and other influencing factors; (2) By comparing the number of new patches at different spatial scales, we found that the dominant advantage had been covered three times between edge expansion type and outlying expansion type, while edge expansion type had always remained the absolute advantage in terms of the area ratio of new patches, the weak position of infilling expansion type was shown respectively in the number and the area ratio of new patches;(3) In terms of the landscape pattern indices on the whole scale, landscape fragmentation and landscape diversity had obviously increased with the change of time, the shape of patch was becoming regular and simple, and the connectivity of patch was constantly being improved. Obviously, the change of landscape pattern is consistent with the process of urbanization. However, landscape patterns were affected by the national policy environment at the regional scale and the district scale, the changes of landscape indices were relatively complex. The research conclusions have contributed to understand and excavate the urban expansion information from the spatial scale, and provide a scientific basis for the urban planning and land management.

Key words: spatial scale, urban expansion type, comprehensive expansion degree index, Chongqing city

中图分类号:

Q149

崔王平, 李阳兵, 郭辉, 陈萌萌. 重庆市不同空间尺度建设用地演进特征与景观格局分析[J]. 长江流域资源与环境, 2017, 26(01): 35-46.

CUI Wang-ping, LI Yang-bing, GUO Hui, CHEN Meng-meng. EVOLUTION CHARACTERISTIC OF DIFFERENT SPATIAL SCALE ABOUT CONSTRUCTION LAND AND LANDSCAPE PATTERN ANALYSIS ECOLOGY IN CHONGQING CITY[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2017, 26(01): 35-46.

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