长江中游城市群城市化对生态质量的影响研究

IF 3 3区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Heng Liu, Lu Zhou, Diwei Tang
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引用次数: 0

摘要

城市群地区快速城市化给生态环境带来巨大压力,平衡城市化发展与生态质量保护对区域高质量发展至关重要。然而,目前的研究缺乏对城市群生态质量与城市化的多尺度评价。基于多源遥感影像,分别构建基于遥感的生态指数(RSEI)和综合夜光指数(CNLI),对2001 - 2021年长江中游城市群(MRYRUA)的多尺度生态质量和城市化水平进行了评价,并利用CCD模型分析了两者的耦合协调度(CCD)。结果表明:①像元、县、市尺度上的生态质量存在空间差异;多维度分析表明,近20年来RSEI呈上升趋势,MRYRUA生态质量总体改善。(2)夜间光照和3个光照指数的DN值在不同尺度上均有不同程度的增加,其中CNLI的平均值从2000年的0.02增加到2021年的0.12。内蒙古自治区城市化水平不断提高,但发展不平衡现象明显。(3)生态质量与城市化水平在不同尺度上的发展方向更加协调,但城市化水平总体上落后于生态质量,两者在空间上呈负相关关系。研究结果可指导湄公河流域生态保护和高质量发展政策的制定。关键词:生态质量;城市化;rseicliccdmryrua披露声明作者未报告潜在利益冲突。本研究由国家自然科学基金资助(批准号:71663017)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring the impact of urbanization on ecological quality in the middle reaches of the Yangtze River Urban Agglomerations, China
AbstractRapid urbanization in urban agglomeration areas puts tremendous pressure on the eco-environment, and balancing urbanization development and ecological quality protection is crucial for regional high-quality development. However, current research lacks a multi-scale assessment of ecological quality and urbanization in urban agglomeration areas. Here, we assessed the multi-scale ecological quality and urbanization level of the Middle Reaches of the Yangtze River Urban Agglomerations (MRYRUA) from 2001 to 2021 based on multi-source remote sensing imagery by constructing the remote sensing-based ecological index (RSEI) and the comprehensive nighttime light index (CNLI), respectively, and analyzed the coupling coordination degree (CCD) of the two using the CCD model. The following conclusions were obtained: (1) There are spatial differences in the ecological quality of pixel, county, and municipal scales. Multi-dimensional analysis indicates that the RSEI shows an increasing trend, and the ecological quality of the MRYRUA has generally improved in the past 20 years. (2) The DN values of nighttime light and the three light indices have increased to varying degrees at different scales, among which the average value of CNLI has increased from 0.02 in 2000 to 0.12 in 2021. The urbanization level of the MRYRUA is constantly improving, but there is an obvious development imbalance. (3) The ecological quality and urbanization level developed in a more coordinated direction at different scales, but the urbanization level lagged behind ecological quality as a whole, and the two were negatively correlated in space. The results of this study can guide the formulation of ecological protection and high-quality development policies in the MRYRUA.Keywords: Ecological qualityurbanizationRSEICNLICCDMRYRUA Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis study was supported by the National Natural Science Foundation of China (grant number 71663017).
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来源期刊
Human and Ecological Risk Assessment
Human and Ecological Risk Assessment 环境科学-环境科学
CiteScore
9.60
自引率
2.30%
发文量
68
审稿时长
2 months
期刊介绍: Human and Ecological Risk Assessment provides a resource for professionals researching and assessing environmental hazards to both humans and ecological systems. The editors expect papers published to be original, of sound science, purposeful for risk analysis (assessment, communication, management) and related areas, well written (in English), and a contribution to the scientific literature. The journal''s emphasis is on publication of papers that contribute to improvements in human and ecological health. The journal is an international, fully peer-reviewed publication that publishes eight issues annually. The journal''s scope includes scientific and technical information and critical analysis in the following areas: -Quantitative Risk Assessment- Comparative Risk Assessment- Integrated Human & Ecological Risk Assessment- Risk Assessment Applications to Human & Ecosystems Health- Exposure Assessment- Environmental Fate Assessment- Multi-Media Assessment- Hazard Assessment- Environmental Epidemiology- Statistical Models and Methods- Methods Development/Improvement- Toxicokinetics Modeling- Animal to Human Extrapolation- Risk Perception/Communication- Risk Management- Regulatory Issues
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