Quality Assessment of Ecological Environment Based on Google Earth Engine: A Case Study of the Zhoushan Islands

Frontiers in Ecology and Evolution

Bin Li¹  Liyan Wang³  Zhisong Liu⁴ 

[1] Beijing VMinFull Limited, Beijing, China;Key Laboratory of Oceanographic Big Data Mining and Application of Zhejiang Province, Zhoushan, China;Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China;School of Information Engineering, Zhejiang Ocean University, Zhoushan, China;

关键词: ecological environmental quality;    RSEI;    Google Earth Engine;    Zhoushan Islands;    cloud computing;   

DOI  :  10.3389/fevo.2022.918756

来源: DOAJ

【 摘 要 】

With the development of society, the impact of human activities on the ecological environment is becoming increasingly intense, so the dynamic monitoring of the status of the ecological environment is of great significance to the management and protection of urban ecology. As an objective and rapid ecological quality monitoring and evaluation technique, the remote sensing based ecological index (RSEI) has been widely used in the field of ecological research. Free available Landsat series data has the character of a long time series and high spatial resolution provides the possibility to conduct large-scale and long-term monitoring of ecological environment quality. Compared with traditional methods, the Google Earth Engine (GEE) platform can save a lot of time and energy in the data acquisition and preprocessing steps. To monitor the quality of the ecological environment in Zhoushan from 2000 to 2020, the GEE platform was used for cloud computing to obtain the RSEI, which can reflect the quality of the ecological environment. The results show that (1) from 2000 to 2020, the average RSEI value in Zhoushan Islands decreased from 0.748 to 0.681, indicating that the overall ecological environment exhibited a degradation trend. (2) From 2000 to 2020, the change in the area of each ecological environment level indicates that the quality of the ecological environment in Zhoushan Islands exhibited a degradation trend. The proportion of the area with an excellent eco-environment grade decreased by 13.54%, and the proportion of the area with poor and fair eco-environment grades increased by 3.43%.

【 授权许可】

Unknown