
Remote Sensing, Год журнала: 2025, Номер 17(10), С. 1663 - 1663
Опубликована: Май 8, 2025
Maintaining or improving habitat quality is essential for conserving biodiversity and ensuring the long-term survival of species. Nevertheless, increasing global warming intensifying human activities have led to varying degrees degradation loss, especially in semi-arid regions. Focusing on China’s West Songnen Plain—the nation’s largest saline-alkali region confronting acute environmental challenges—this study introduced soil salinization level mean NDVI farmland during growing season as dynamic threat factors systematically explored spatiotemporal characteristics semiarid area Plain from 1990 2020. The results showed following: (1) Habitat exhibited a continuous decline period, following “degradation–recovery” trajectory with deterioration peaking 2010; low- poor-quality habitats predominantly distributed central areas characterized by severe salinization, interspersed patches good-quality habitat. (2) was mainly concentrated natural land cover types, whereas improvements were observed locally bare land. However, slight opposite trends detected between values change forests, waters, As elevation continuously increased, grade shifted towards better conditions. (3) A spatial autocorrelation analysis revealed significant clustering quality, but extent hot spots cold gradually shrank grassland saline management progressed. By incorporating integrating multi-source data, this improved assessment framework regions provided scientific support spatially stratified conservation strategies.
Язык: Английский