Spatiotemporal Variations and Main Drivers of Landscape Ecological Risks in the Qinling-Daba Mountains: A Case Study in Ankang City

Polish Journal of Environmental Studies, Год журнала: 2024, Номер unknown

Опубликована: Авг. 5, 2024

In the context of "ecological civilization construction" in China, it is important to scientifically assess landscape ecological risks (LER) eco-sensitive regions.This crucial identify spatiotemporal variations and drivers, develop security patterns, achieve spatial protection governance region.We selected Ankang City Qinling-Daba Mountains region divided into 921 risk assessment units using remotely sensed land use data pattern indexes from 2000-2020 period.A index (LERI) model was constructed geostatistics, statistics, boosted regression tree analysis for quantitative LERIs their drivers.During 2000-2020, structure underwent considerable changes woodland construction areas.Woodlands were mainly converted cropland grassland, as well cropland, water bodies; LERI decreased 0.1627 0.1609.Spatially, level higher northwest lower southeast, middle, surrounding areas.The gravity centers detected Hanbin District, with trends southeast shift concentrated contraction.The contraction trend major axis stronger than that minor axis.Mean annual temperature, GDP, mean precipitation, drought index, soil total phosphorus primary drivers LERI.Furthermore, effects human economic activities on show a decreasing then increasing over time.These findings can aid policy decision-making sustainable development Qinglin-Daba region.

Язык: Английский

Landscape ecological risk based on optimal scale and its tradeoff/synergy with human activities: A case study of the Nanjing metropolitan area, China

Ecological Indicators, Год журнала: 2024, Номер 170, С. 113040 - 113040

Опубликована: Дек. 28, 2024

Язык: Английский