The ecological environment is important for the survival and development of human beings, and objective and accurate monitoring of changes in the ecological environment has received extensive attention. Based on the normalized difference vegetation index (NDVI), wetness (WET), normalized differential build-up and bare soil index (NDBSI), and land surface temperature (LST), the principal component analysis method is used to construct a comprehensive index to evaluate the ecological environment’s quality. The R package “Relainpo” is used to estimate the relative importance and contribution rate of NDVI, WET, NDBSI, and LST to the remote sensing ecological index (RSEI). The optimal parameter geographic detector (OPGD) model is used to quantitatively analyze the influencing factors, degree of influence, and interaction of the RSEI. The results show that from 2001 to 2020, the area with a poor grade quality of the RSEI in Guangzhou decreased from 719.2413 km2 to 660.4146 km2, while the area with an excellent quality grade of the RSEI increased from 1778.8311 km2 to 1978.9390 km2. The NDVI (40%) and WET (35%) contributed significantly to the RSEI, while LST and NDBSI contributed less to the RSEI. The results of single factor analysis revealed that soil type have the greatest impact on the RSEI with a coefficient (Q) of 0.1360, followed by a temperature with a coefficient (Q) of 0.1341. The interaction effect of two factors is greater than that of a single factor on the RSEI, and the interaction effect of different factors on the RSEI is significant, but the degree of influence is not consistent. This research may provide new clues for the stabilization and improvement of ecological environmental quality.

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Application of the Optimal Parameter Geographic Detector Model in the Identification of Influencing Factors of Ecological Quality in Guangzhou, China

Quantification of model uncertainty and variability for landslide displacement prediction based on Monte Carlo simulation

What is going on within google earth engine? A systematic review and meta-analysis

F. G. Bell . E & FN Spon, London, 1999. £65 hardback; viii+648pp. ISBN 0-419-16970-9.

The occurrence and mitigation of geological hazards are themes that fire the human imagination and make fascinating areas of teaching, research and consultancy. I must admit, therefore, to being a little disappointed on opening this book because, at first glance, it did little to fire my imagination about topics that interest me a great deal. The book is heavy on text and relatively light in terms of figures, tables and even equations.

To be fair to the author, the area that he is trying to encompass in …

Geological Hazards: their assessment, avoidance and mitigation

Spatiotemporal dynamic decoupling states of eco-environmental quality and land-use carbon emissions: A case study of Qingdao City, China

Using the Google Earth Engine to rapidly monitor impacts of geohazards on ecological quality in highly susceptible areas

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Using the Google Earth Engine to rapidly monitor impacts of geohazards on ecological quality in highly susceptible areas