洞庭湖地区城镇空间演化特征及其对生态质量的影响研究

王晓华; 宁启蒙; 王心怡; 曾志伟

doi:10.3969/j.issn.1009-1483.2022.10.003

洞庭湖地区城镇空间演化特征及其对生态质量的影响研究

doi: 10.3969/j.issn.1009-1483.2022.10.003

1 湖南城市学院建筑与城市规划学院;
2 湖南城市学院学科建设与发展规划处/研究生处

基金项目:

湖南省哲学社会科学基金项目“洞庭湖地区乡村人居环境系统脆弱性演变及乡村转型”（编号：21YBA174）；湖南省教育厅重点项目“双碳约束下城市群地区城市用地效率与生态系统服务耦合协调研究”（编号：21A0506）；湖南省自然科学基金项目“环洞庭湖地区城市化与生态系统服务的交互关系及耦合机理”（编号：2022JJ50271）。

详细信息

作者简介:
王晓华,湖南城市学院建筑与城市规划学院副院长,博士。

宁启蒙,湖南城市学院学科建设与发展规划处/研究生处副处长,副教授。

王心怡,湖南城市学院建筑与城市规划学院助教。

曾志伟,湖南城市学院建筑与城市规划学院院长,教授。

中图分类号: F292
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出版历程
- 收稿日期: 2022-05-18

Study on the Characteristics of Urban Spatial Evolution and its Influence on Ecological Quality in Dongting Lake Area

摘要

摘要: 保持洞庭湖地区生态健康，对区域可持续发展具有重要意义。然而，伴随着城镇空间的无序扩张，生态安全面临巨大威胁。本文基于扩张速度指数、扩张强度指数与遥感生态指数（RSEI）分析了2010—2020年洞庭湖地区城镇空间和生态环境质量的时空变化，并通过指数回归模型探索城镇空间演化对生态环境质量的影响。结果表明：（1）2010—2020年，洞庭湖地区城镇空间加速扩张，城镇面积增长了232.7km²，集中分布在洞庭湖四周区域，整体呈现多点集聚状态且不断向周边区域拓展。（2）洞庭湖地区生态环境质量总体呈波动状态，表现出改善的趋势；生态环境质量处于中等、一般和较差的区域向周围扩展。（3）研究期间，洞庭湖地区生态环境质量与城镇空间扩张速度、城镇空间扩张强度呈现负相关。以上研究发现可以更好地为城镇发展与生态保护协调优化提供参考，同时为洞庭湖地区及其他湖区的高质量发展与可持续发展提供支持。
- 城镇空间演化 /
- 生态环境质量 /
- RSEI 模型 /
- 遥感 /
- 洞庭湖地区
Abstract: Maintaining ecological health in Dongting Lake area is of great significance to regional sustainable development. However, with the disordered expansion of urban space, ecological security is facing a great threat. Based on the expansion rate index, expansion intensity index and remote sensing ecological index (RSEI), this paper analyzed the spatio-temporal changes of urban space and eco-environmental quality in Dongting Lake area from 2010 to 2020, and explored the impact of urban space evolution on eco-environmental quality through exponential regression model. The results show that:(1) From 2010 to 2020, the urban space in Dongting Lake area has accelerated expansion, with the urban area increasing by 232.7km², concentrated in the area around Dongting lake, presenting a multi-point agglomeration state and continuously expanding to the surrounding areas. (2) The ecological environment quality in Dongting Lake area fluctuated and showed a trend of improvement. The areas with medium, general and poor ecological environment quality spread to the surrounding areas. (3) During the study period, eco-environmental quality was negatively correlated with urban spatial expansion intensity. The above research findings can provide a better reference for the coordination and optimization of urban development and ecological protection, in order to provide support for the high-quality development and sustainable development of Dongting Lake area and other lake area.
- urban spatial evolution /
- ecological environment quality /
- RSEI model /
- remote sensing /
- Dongting Lake area

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