测绘通报 ›› 2025, Vol. 0 ›› Issue (11): 170-175.doi: 10.13474/j.cnki.11-2246.2025.1127

• 技术交流 • 上一篇    下一篇

利用GEE土地利用分类的广州市生态系统服务价值变化分析

赵小阳1,2,3, 邱镛康1,2,3, 刘洋1,2,3, 段鹏1,2,3, 付乐宜1,2,3   

  1. 1. 广州市城市规划勘测设计研究院有限公司, 广东 广州 510060;
    2. 广州市资源规划和海洋科技协同创新中心, 广东 广州 510060;
    3. 广东省城市感知与监测预警企业重点实验室, 广东 广州 510060
  • 收稿日期:2025-07-16 发布日期:2025-12-04
  • 通讯作者: 邱镛康。E-mail:yongkangqiu@163.com
  • 作者简介:赵小阳(1981—),男,正高级工程师,主要研究方向为国土空间调查。E-mail:1491332981@qq.com
  • 基金资助:
    国家重点研发计划(2022YFB3903405)

Analysis of changes in ecosystem service value in Guangzhou using GEE land use classification

ZHAO Xiaoyang1,2,3, QIU Yongkang1,2,3, LIU Yang1,2,3, DUAN Peng1,2,3, FU Leyi1,2,3   

  1. 1. Guangzhou Urban Planning & Design Survey Research Institute Co., Ltd., Guangzhou 510060, China;
    2. Guangzhou Collaborative Innovation Center of Natural Resources Planning and Marine Technology, Guangzhou 510060, China;
    3. Guangzhou Enterprise Key Laboratory for Urban Sensing, Monitoring and Early Warning, Guangzhou 510060, China
  • Received:2025-07-16 Published:2025-12-04

摘要: 量化不同土地利用类型的生态系统服务价值(ESV),能为城市生态资源保护与国土空间规划提供重要依据。本文以广州市为研究区域,基于GEE平台遥感数据集与随机森林算法进行土地利用分类,结合当量因子法计算研究区ESV空间分布,并评估人类活动强度对于ESV变化的影响。结果表明:①2014—2024年,建设用地面积增长率为5.93%,增长的面积主要是由耕地、未利用地、草地转化而来,其他用地类型占地面积除林地外都呈现缩减趋势;②广州市的ESV主要来自林地和水体,累计占比超95%,2014—2024年,研究区ESV总量降低了约1.12亿元,ESV降低的区域主要位于广州建成区周边,主要来自城镇的扩张;③广州市人类活动强度空间分布呈现北部低、中部与西部高的特征,并且人类活动强度与ESV之间呈现负相关关系,即随着人类活动增强,ESV呈现下降趋势。

关键词: GEE, 土地利用分类, 当量因子, 生态系统服务价值, 人类活动强度

Abstract: Quantifying the ecosystem service value (ESV) of different land use types can provide important basis for urban ecological resource protection and national spatial planning.This article takes Guangzhou city as the research area,uses the GEE platform remote sensing dataset and random forest algorithm for land use classification,combines the equivalent factor method to calculate the spatial distribution of ESV in the study area,and evaluates the impact of human activity intensity on ESV changes.The results show that: ①From 2014 to 2024,the growth rate of construction land area has reached 5.93%.The increased area was mainly converted from cultivated land,unused land,and grassland,while the land area of other land types showed a decreasing trend except for forest land.② The ESV in Guangzhou mainly comes from forests and water bodies,accounting for over 95% of the total.From 2014 to 2024,the total ESV in the study area decreased by about 112 million yuan,and the areas where ESV decreased were mainly located around the built-up areas of Guangzhou,mainly due to urban expansion.③ The spatial distribution of human activity intensity in Guangzhou city shows a characteristic of low intensity in the north and high intensity in the middle and west,and there is a negative correlation between human activity intensity and ESV.With the increase of human activity,ESV shows a downward trend.

Key words: GEE, land-use classification, equivalent factor, ecosystem service value, human activity intensity

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