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Spatiotemporal change detection of ecological quality and the associated affecting factors in Dongting Lake Basin, based on RSEI

机译：基于RSEI的洞庭湖盆地生态质量的时空变化检测及其相关影响因素

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摘要

Maintaining optimal ecological security in Dongting Lake Basin is of great significance to national projects of Yangtze River Economic Belt Construction and Yangtze River Protection. Ecological quality and the potential associated affecting factors are important contents of ecological security in Dongting Lake Basin. In this research, remote sensing ecological index (RSEI) were used to analyze the temporal and spatial variation in the ecological qualities in Dongting Lake Basin during 2001-2019 and determine the potential associated affecting factors. Results showed that the overall ecological quality fluctuated during 2001-2019. The change intensities among different RSEI levels were relative low (absolute change values of 1 and 2) and mainly changed among fair, moderate and good levels. Land use/cover, climate (average annual rainfall) and human interferences (GDP) were the associated potential factors affecting the ecological quality in Dongting Lake Basin. Among these factors, areas and qualities of woody savannas, savannas, mixed forests, and cropland/natural vegetation mosaics were the most important factors affecting the ecological quality (RSEI). While other land use/cover (i.e., Croplands, Evergreen Needleleaf Forests, Parmanent Wetlands, Grasslands), climate (average annual rainfall) and human interferences (GDP) also had contributions to the ecological quality. Specifically, such four land use/cover, average annual rainfall were positively but GDP negatively correlated with the ecological quality. In conclusion, changes in the area and quality of different land use types might explain most of the ecological quality variations in Dongting Lake Basin. These findings will provide significant information for managers to make more targeted ecological restoration efforts in Dongting Lake Basin.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
机译：维持洞庭湖盆地的最佳生态安全对长江经济带建筑和长江保护的国家项目具有重要意义。生态质量和相关影响因素的潜力是洞庭湖盆地生态安全的重要内容。在这项研究中，遥感生态指数（RSEI）用于分析2001 - 2019年洞庭湖盆地生态质量的时间和空间变化，并确定相关影响因素的潜在影响因素。结果表明，2001 - 2019年的整体生态质量波动。不同RSEI水平之间的变化强度相对较低（绝对变化值1和2），主要在公平，中等和良好的水平之间发生变化。土地使用/封面，气候（平均年度降雨）和人类干扰（GDP）是影响洞庭湖盆地生态质量的相关潜在因素。在木质大草原，大草原，混合林和农田/天然植被马赛克的这些因素，地区和品质中是影响生态质量（Rsei）的最重要因素。虽然其他土地使用/封面（即，农田，常绿的针心森林，地方湿地，草原），气候（平均年度降雨）和人类干扰（GDP）也对生态质量贡献。具体而言，这么四个土地使用/封面，年平均降雨量是积极的，但GDP与生态质量负相关。总之，不同土地利用类型的地区和质量的变化可能会解释洞庭湖盆地的大部分生态质量变化。这些调查结果将为管理人员提供重大信息，以便在洞庭湖盆地进行更具针对性的生态恢复努力。（c）2021年作者。由elsevier有限公司出版。这是CC By-NC-ND许可下的开放式访问文章（http://creativecommons.org/licenses/by-nc-nd/4.0/）。

著录项

  • 来源
    《Journal of Cleaner Production》 |2021年第15期|126995.1-126995.12|共12页
  • 作者

    Yuan Baodong; Fu Lina; Zou Yeai; Zhang Siqi; Chen Xinsheng; Li Feng; Deng Zhengmiao; Xie Yonghong;

  • 作者单位

    Shangqiu Normal Univ Coll Biol & Food Shangqiu 476000 Peoples R China;

    Forestry Dept Hunan Prov Div Protected Areas Management GEF Project Management Off Changsha 410004 Peoples R China|Yongzhou City Forestry Bur Yongzhou 425000 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China;

    Chinese Acad Sci Key Lab Agroecol Proc Subtrop Reg Changsha 410125 Peoples R China|Chinese Acad Sci Inst Subtrop Agr Dongting Lake Stn Wetland Ecosyst Res Changsha 410125 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ecological quality; RSEI; Land use; cover; Remote sensing; Dongting lake basin;

    机译：生态质量;rsei;土地使用;封面;遥感;洞庭湖盆地;
  • 入库时间 2022-08-19 02:23:37

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