Developing an Enhanced Ecological Evaluation Index (EEEI) Based on Remotely Sensed Data and Assessing Spatiotemporal Ecological Quality in Guangdong-Hong Kong-Macau Greater Bay Area, China
文献类型： 外文期刊
作者： Feng, Shanshan 1 ; Fan, Fenglei 3 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Agr Econ & Informat, Guangzhou 510640, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Urban Agr South China, Guangzhou 510640, Peoples R China
3.South China Normal Univ, Sch Geog, Guangzhou 510631, Peoples R China
4.Tibet Univ, Joint Lab Plateau Surface Remote Sensing, Lhasa 850000, Peoples R China
关键词： remote sensing; ecological quality; ecological index; environmental management; Guangdong-Hong Kong-Macau Greater Bay Area (GBA)
期刊名称：REMOTE SENSING （ 影响因子：5.349； 五年影响因子：5.786 ）
ISSN：
年卷期： 2022 年 14 卷 12 期
页码：
收录情况： SCI
摘要： Ecological changes affected by increasing human activities have highlighted the importance of ecological quality assessments. An appropriate and efficient selection of ecological parameters is fundamental for ecological quality assessments. On the basis of remote sensing data and methods, this study developed an enhanced ecological evaluation index (EEEI) with five integrated ecological parameters by containing pixel and sub-pixel information: normalized difference vegetation index, impervious surface coverage, soil coverage, land surface temperature, and wetness component of tasseled cap transformation. Significantly, the EEEI simultaneously considered the five aspects of land surface ecological conditions (i.e., greenness, human activities, dryness, heat, and moisture), which provided an effective guide for the systematic selection of ecological parameters. The EEEI has a clear theoretical framework, and all the parameters can be obtained quickly on the basis of the remote sensing datasets and methods, which is suitable for the promotion and application of ecological quality assessments to various areas and scales. Furthermore, the EEEI was applied to assess and detect the ecological quality of the Guangdong-Hong Kong-Macau Greater Bay Area (GBA) of China. Assessment results indicated that the ecological quality of the GBA is currently facing great challenges with a degradation trend from 2000 to 2020, which emphasizes the significance and urgency for eco-environmental protection of the GBA. This provided evidence that the EEEI can be used as an effective index for scientific, objective, quantitative, and comprehensive ecological quality assessment, which can also aid regional environmental management and ecological protection.
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