院报 ›› 2016, Vol. 33 ›› Issue (11): 43-48.DOI: 10.11988/ckyyb.20160643

• 遥感技术应用 • 上一篇    下一篇

重庆市主城区建设用地扩张特征分析及其预测

方喻弘1,2,3,刘德富1,王丽婧2,谭德宝3,张佳磊1,杨正健1   

  1. 1.湖北工业大学 资源与环境工程学院,武汉 430068;
    2.中国环境科学研究院 国家环境保护饮用水
    水源地保护重点实验室,北京 100012;
    3. 空间信息技术应用研究所,武汉 430010
  • 收稿日期:2016-06-23 出版日期:2016-11-20 发布日期:2016-11-08
  • 通讯作者: 刘德富(1962-),男,湖北枝江人,教授,博士,主要从事水工结构工程、防灾减灾工程及防护工程与生态水工学等方面的研究工作,(电话)18071016888(电子信箱)dfliu@189.cn。
  • 作者简介:方喻弘(1991-),女,湖北荆门人,硕士,主要从事GIS技术在环境保护中的应用方面研究,(电话)15907128611(电子信箱)676392879@qq.com。
  • 基金资助:

    国家国际科技合作项目(2014DFE70070)

Characteristics and Prediction of Construction Land Expansionin Main Urban Area of Chongqing

FANG Yu-hong1,2,3, LIU De-fu1, WANG Li-jing2, TAN De-bao3, ZHANG Jia-lei1, YANG Zheng-jian1   

  1. 1.College of Resources and Environmental Engineering, Hubei University of Technology, Wuhan 430068,China;
    2.State Environmental Protection Key Laboratory of Drinking Water Source, Chinese Research Academyof Environmental Sciences, Beijing 100012, China;
    3.Spatial Information Technology ApplicationDepartment, Yangtze River Scientific Research Institute, Wuhan 430010, China
  • Received:2016-06-23 Online:2016-11-20 Published:2016-11-08

摘要:

考虑到地块本身空间特征对城镇规划和扩张的影响,有必要耦合空间格局因子来研究建设用地的扩张过程。以重庆市主城区为研究区域,在甄别土地利用扩展特征的基础上,综合采用平均增长率法和基于地块空间属性的优势度评价法,预测了2020年的建设用地需求量和新增建设用地的空间分布。研究结果显示①2010—2016年,重庆市主城区建设用地从749.14 km2增加至905.06 km2,年平均增长率为3.35%;②2010—2016年,研究区内新增建设用地主要来源于耕地(53.25%)或林地(37.89%)的转化,同时更倾向分布于坡度低于12°、海拔低于400 m的区域,尤其是0~3°坡度区间(24.44%)和200~300 m高程区间(47.60%);③至2020年,研究区内建设用地面积将增长115.31 km2,其中56.24%来源于耕地的转化,47.45%位于200~300 m海拔区间,58.39%位于0~12°坡度区间,主要分布于沙坪坝区、九龙坡区和渝北区。

关键词: 建设用地, 扩张预测, 空间分布, 地块优势度评价, 重庆市主城区

Abstract:

The expansion of construction land use needs to be predicted in consideration of the influence of spatial pattern factors. In this research, we take the main urban area of Chongqing city as study area to predict the spatial distributions of construction land use demand and newly built construction land in 2020 using the method of average growth rate of construction land in association with land use superiority evaluation of three spatial factors (elevation, slope, and original land-use type)by GIS technological means. Results indicate that1) between 2010 and 2016, the area of urban construction land in urban Chongqing has increased from 749.14 km2 to 905.06 km2, with an average annual growth rate of 3.35%; 2) newly built area were mainly transformed from cultivated land(accounting for 53.25%) and forest land(37.89%), and more likely located in the area of slope gradient smaller than 12°and elevation below 400m, especially in the range of 0-3° slope (24.44%)and 200-300 m elevation(47.60%); 3) up to 2020, the area of urban construction land will be increased by 115.31 km2, mainly transformed from cultivated land (56.24%) and distributed in the range of 200-300m elevation (47.45%) and 0-12°slope (58.39%), mainly located in Shapingba district, Jiulongpo district and Yubei district.

Key words: urban construction land, expansion prediction, spatial distribution, land use superiority evaluation, main urban area of Chongqing

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