资源科学 ›› 2018, Vol. 40 ›› Issue (11): 2260-2269.doi: 10.18402/resci.2018.11.12

• 水资源 • 上一篇    下一篇

基于Landsat影像的环胶州湾不透水面格局演变过程

吴溪1, 郭斌1(), 陈忠升2, 史文娇3   

  1. 1. 山东科技大学测绘科学与工程学院,青岛 266590
    2. 西华师范大学国土资源学院,南充 637002
    3. 中国科学院地理科学与资源研究所,陆地表层格局与模拟重点实验室,北京 100101
  • 收稿日期:2018-06-12 修回日期:2018-08-24 出版日期:2018-11-20 发布日期:2018-11-12
  • 作者简介:

    作者简介:吴溪,女,江苏徐州人,硕士生,主要从事遥感水文研究。E-mail: wux@lreis.ac.cn

  • 基金资助:
    国家自然科学基金项目(41807170);山东省自然科学基金项目(ZR2017BD021)

Spatio-temporal dynamic characterization of impervious surface in the Jiaozhou Bay based on Landsat imagery

Xi WU1, Bin GUO1(), Zhongsheng CHEN2, Wenjiao SHI3   

  1. 1. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
    2. School of Land and Resources, China West Normal University, Nanchong 637002, China
    3. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2018-06-12 Revised:2018-08-24 Online:2018-11-20 Published:2018-11-12

摘要:

不透水面是影响城市生态环境的关键因子,及时、精确地掌握不透水面的动态变化对城市的发展规划具有重要指导意义。本文以环胶州湾为例,基于1990年、1995年、2000年、2005年、2011年Landsat TM影像和2016年Landsat OLI影像,采用线性光谱混合分析和决策树相结合的方法分析了环胶州湾不透水面格局演变过程。结果表明:①本文提取的1990—2016年环胶州湾不透水面丰度与验证数据的决定系数R2均在0.70以上,均方根误差RMSE均在16.70%以下。②环胶州湾不透水面面积由1990年的105.17km2增长到2016年的620.02km2,总的扩展方向为由南向北、向东和向西移动。③1990年城阳区成为辅助市区发展的重心,现由城阳区逐渐向黄岛区、崂山区、即墨区和胶州市发展。

关键词: 发展重心, 不透水面, Landsat, 时空分布, 环胶州湾

Abstract:

Impervious surface areas (ISA) are key factor of affecting urban ecological environments. Information on ISA distribution and dynamics was useful for the planning and development of cities. This study explored a hybrid method consisting of linear spectral mixture analysis (LSMA) on the basis of vegetation-high albedo-low albedo-soil model (V-H-L-S), and regression tree (RT) for estimation of ISA in the Jiaozhou Bay. Medium-resolution remote sensing data (Landsat TM images in 1990, 1995, 2000, 2005, 2011, and Landsat OLI images in 2016) were used as basic data. Then the spatial and temporal distributions of ISA from 1990 to 2016 were identified in the Jiaozhou Bay based on the estimation of ISA. In addition, the regional development center of gravity was located by the extended index and buffer zone. The results demonstrated that the coefficients of determination (R2) of ISA in 1990, 1995, 2000, 2005, 2011, and 2016 were greater than 0.70 and their root mean square error (RMSE) were less than 16.70%. It is noted that the hybrid method consisting of LSMA and RT for estimation of ISA is feasible. The ISA increased from 105.17 km2 in 1990 to 620.02 km2 in 2016 in the Jiaozhou Bay. The expansion trend was from south to north, east to west. The area of ISA was increasing, but the increasing rate of ISA did show a little change. From 1990 to 1995, the expansion intensity of ISA was the largest, which was much larger than other periods. Downtown has always been the center of urban development, then Chengyang has become the focus of auxiliary urban since 1990. However, the trend was from Chengyang to Laoshan in 1993, Jiaozhou and Jimo in 2005, and Huangdao in 2011. This study will provide scientific foundation for the development and construction of sponge city in the Jiaozhou Bay.

Key words: development center, impervious surface areas, Landsat, spatio-temporal distribution, the Jiaozhou Bay