The Spatiotemporal Evolution of Vegetation in the Henan Section of the Yellow River Basin and Mining Areas Based on the Normalized Difference Vegetation Index DOI Creative Commons
Zhichao Chen, Xueqing Liu,

Honghao Feng

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(23), P. 4419 - 4419

Published: Nov. 26, 2024

The Yellow River Basin is rich in coal resources, but the ecological environment fragile, and degradation of vegetation exacerbated by disruption caused high-intensity mining activities. Analyzing dynamic evolution Henan section its areas over long term run reveals regional offers a scientific foundation for region’s sustainable development. In this study, we obtained time series Landsat imageries from 1987 to 2023 on Google Earth Engine (GEE) platform utilized geographically weighted regression models, Sen (Theil–Sen median) trend analysis, M-K (Mann–Kendall) test, coefficient variation (CV), Hurst index investigate cover based kNDVI (the normalized difference index). This used explore spatial temporal characteristics future development trend. Our results showed that (1) value exhibited fluctuating upward at rate 0.0509/10a 2023. region aligned closely with overall section; however, annual each area consistently remained lower than displayed degree fluctuation, predominantly characterized medium–high variability, moderate high fluctuations accounting 73.5% total. (2) study significant improvement trends. We detected area; yet, might cause 87% area, which may be related multiple factors such as intensity mine site, anthropogenic disturbances, climate change. (3) status shows positive correlation distance areas, 90.9% total, indicating has strong impact cover. provides basis restoration, green mineral Basin.

Language: Английский

The Spatiotemporal Evolution of Vegetation in the Henan Section of the Yellow River Basin and Mining Areas Based on the Normalized Difference Vegetation Index DOI Creative Commons
Zhichao Chen, Xueqing Liu,

Honghao Feng

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(23), P. 4419 - 4419

Published: Nov. 26, 2024

The Yellow River Basin is rich in coal resources, but the ecological environment fragile, and degradation of vegetation exacerbated by disruption caused high-intensity mining activities. Analyzing dynamic evolution Henan section its areas over long term run reveals regional offers a scientific foundation for region’s sustainable development. In this study, we obtained time series Landsat imageries from 1987 to 2023 on Google Earth Engine (GEE) platform utilized geographically weighted regression models, Sen (Theil–Sen median) trend analysis, M-K (Mann–Kendall) test, coefficient variation (CV), Hurst index investigate cover based kNDVI (the normalized difference index). This used explore spatial temporal characteristics future development trend. Our results showed that (1) value exhibited fluctuating upward at rate 0.0509/10a 2023. region aligned closely with overall section; however, annual each area consistently remained lower than displayed degree fluctuation, predominantly characterized medium–high variability, moderate high fluctuations accounting 73.5% total. (2) study significant improvement trends. We detected area; yet, might cause 87% area, which may be related multiple factors such as intensity mine site, anthropogenic disturbances, climate change. (3) status shows positive correlation distance areas, 90.9% total, indicating has strong impact cover. provides basis restoration, green mineral Basin.

Language: Английский

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