湖北农业科学 ›› 2021, Vol. 60 ›› Issue (10): 46-54.doi: 10.14088/j.cnki.issn0439-8114.2021.10.009

• 资源·环境 • 上一篇    下一篇

基于GEE的湖北省近30年湖泊及其岸线演变分析

廖文秀, 陈奕云2, 赵曦, 温旭昶   

  1. 1. 武汉大学,a. 资源与环境科学学院;b. 测绘学院,武汉 430079;
    2. 剑桥大学发展研究中心,英国 剑桥 CB3 9DT
  • 收稿日期:2021-03-09 出版日期:2021-05-25 发布日期:2021-05-28
  • 通讯作者: 赵曦(1966-),女,湖北京山人,副教授,主要从事经济地理学与区域规划等研究,(电子信箱)mixi51@163.com。
  • 作者简介:廖文秀(1996-),女,湖北咸宁人,在读硕士研究生,研究方向为水资源环境与可持续发展,(电话)17362506430(电子信箱)liaowenxiu@whu.edu.cn。
  • 基金资助:
    国家自然科学基金面上项目(41771440)

Analysis of lake and lake shoreline evolution in Hubei province in recent 30 years based on Google Earth Engine

LIAO Wen-xiu, CHEN Yi-yun2, ZHAO Xi, WEN Xu-chang   

  1. 1a. School of Resources and Environmental Science;
    1b. School of Geomatics and Geodesy,Wuhan University,Wuhan 430079,China;
    2. Centre for Development Studies,University of Cambridge,Cambridge CB3 9DT,UK
  • Received:2021-03-09 Online:2021-05-25 Published:2021-05-28

摘要: 借助遥感数据处理Google Earth Engine(GEE)云平台,结合归一化差异水体指数(NDWI)和JavaScript编程,对1990—2019年湖北省大中型湖泊进行快速识别,在此基础上进行湖泊岸线提取、形态指标计算与湖泊演变驱动机制分析。结果表明,1990—2019年湖北省湖泊面积共减少361.64 km2,呈现先减少后增加再减少的趋势,耕地和水塘是湖泊转入和转出的主要土地类型;岸线长度波动变化,共减少2 406.77 km,岸线发育系数均值和分形维数变化不明显;岸线发育系数值接近的湖泊,其岸线周边环境相似。

关键词: Google Earth Engine(GEE), 湖泊岸线, NDWI, 随机森林法, 湖北省

Abstract: Based on the remote sensing data processing cloud platform Google Earth Engine(GEE), combined with normalized differential water body index(NDWI) and JavaScript programming, the rapid identification of large and medium-sized lakes was carried out in Hubei province from 1990 to 2019. Based on this, shoreland extraction, morphological index calculation and driving mechanism analysis of lake evolution were carried out. The results showed that the lake area decreased by 361.64 km2 in 1990—2019, with a trend of decreasing first, then increasing and then decreasing. Farmland and pond were the main types of land transferred into and out of lakes. The length of the shoreline fluctuates with a total decrease of 2 406.77 km, and the mean value of the shoreline development coefficient and fractal dimension did not change significantly. The lakes with similar shoreline development coefficient had similar shoreline surrounding environment.

Key words: Google Earth Engine(GEE), lake shoreline, NDWI, random forest method, Hubei province

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