华东师范大学学报(自然科学版) ›› 2021, Vol. 2021 ›› Issue (4): 81-89.doi: 10.3969/j.issn.1000-5641.2021.04.010

• 水体污染控制与治理 • 上一篇    下一篇

上海环城绿带水体水质与土地利用结构的响应研究

陈体达1,2,3,4, 崔丹1,2,3,4, 袁育鑫1,2,3,4, 刘佳敏1,2,3,4, 黄民生1,2,3,4,*(), 李莹1,2,3,4   

  1. 1. 华东师范大学 生态与环境科学学院 上海市城市化生态过程与生态恢复重点实验室, 上海 200241
    2. 崇明生态研究院, 上海 202162
    3. 上海有机固废生物转化工程技术研究中心,上海 200241
    4. 自然资源部大都市区国土空间生态修复工程技术创新中心, 上海 200062
  • 收稿日期:2020-12-21 出版日期:2021-07-25 发布日期:2021-07-23
  • 通讯作者: 黄民生 E-mail:mshuang@des.ecnu.edu.cn
  • 基金资助:
    国家科技重大专项(2017ZX07207001, 2018ZX07208008)

Changes in water quality and land use structure in the green-belt area around Shanghai

Tida CHEN1,2,3,4, Dan CUI1,2,3,4, Yuxin YUAN1,2,3,4, Jiamin LIU1,2,3,4, Minsheng HUANG1,2,3,4,*(), Ying Li1,2,3,4   

  1. 1. Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
    2. Institute of Eco-Chongming, Shanghai 202162, China
    3. Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China
    4. Technology Innovation Center for Land Spatial Eco-Restoration in Metropolitan Area (Ministry of Natural Resources), Shanghai 200062, China
  • Received:2020-12-21 Online:2021-07-25 Published:2021-07-23
  • Contact: Minsheng HUANG E-mail:mshuang@des.ecnu.edu.cn

摘要:

选取了上海环城绿带中30个水体, 以现场实测数据和解译的缓冲区土地利用类型为基础, 综合运用马尔科夫转移矩阵和相关性分析, 揭示了环城绿带的土地利用变化规律及其与水质的响应关系. 结果显示: 绿带水体历年以Ⅳ类—劣Ⅴ类为主, 劣Ⅴ类水体占比呈逐年下降的趋势; 缓冲区内以建设用地、林地和草地为主, 三者合计占比约84.37%; 以建设用地的减少和裸地增加为主, 两者分别占总减少面积的48.95%和总增加面积的50.85%; 在300 m缓冲区尺度上, 草地对DO、Chla呈现正效应; 在500 m尺度上, 裸地是引起CODMn恶化的主要因素, 而耕地在两个尺度均与多个污染指标呈正相关.

关键词: 环城绿带, 内梅罗指数法, 马尔科夫转移矩阵, 土地利用变化

Abstract:

In this paper, we study land use change and its effects on water quality for 30 water bodies in the green-belt area of Shanghai; the analysis is based on the Markov transfer matrix and Pearson correlation analysis of field data and interpreted land use types. The results show that: the water quality is dominated by Grade Ⅳ and lower Grade Ⅴ; the proportion of water bodies with lower Grade Ⅴ is decreasing year by year; the buffer zone is dominated by construction land, forest, and grassland, with a total proportion of about 84.37%; the increase in construction land and decrease in bare land, accounted for 48.95% of the total reduced area and 50.85% of the total increased area, respectively; on the 300 m buffer scale, grassland had a positive effect on DO and Chla; on the 500 m scale, bare land was the main factor for CODMn deterioration; and cultivated land was positively correlated with multiple pollution indicators at two scales.

Key words: green-belt around the city, Nemero index method, Markov transition matrix, land use change

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