Spatial and Temporal Change Characteristics and Climatic Drivers of Vegetation Productivity and Greenness during the 2001–2020 Growing Seasons on the Qinghai–Tibet Plateau

Land, Journal Year: 2024, Volume and Issue: 13(8), P. 1230 - 1230

Published: Aug. 7, 2024

Exploring NDVI variation and what drives it on the Qinghai–Tibet Plateau can strategically inform environmental protection efforts in light of global climate change. For this analysis, we obtained MODIS data collected during vegetative growing season, vegetation types for region, meteorological same period from 2001 to 2020. We performed Theil–Sen trend Mann–Kendall significance testing, spatial autocorrelation Hurst index calculation review spatiotemporal changes characteristics plateau various types. used correlation coefficients these analyses investigate how responds temperature precipitation. found following: (1) Overall, increased throughout multi-year with a much larger area improvement (65.68%) than degradation (8.83%). (2) The four main were all characterized by improvement, meadows (72.13%) comprising largest portion improved shrubs (18.17%) degraded area. (3) distribution had strong positive clustering effect was stable overall. local patterns primarily low–low high–high clustering. (4) an average value 0.46, indicating that sustainability is poor; is, change season large part future opposite past. (5) correlated positively air However, correlations varied geographically: wide influence, whereas precipitation mainly influenced grassland northern arid zone. overall temperature-driven stronger This finding consistent current research conclusion warming humidification promote growth high-altitude areas further emphasizes uniqueness as climate-change-sensitive study also offers technical foundation understanding impacts ecosystems, well formulating ecological strategies plateau.

Language: Английский

Editorial preface to special issue: Palaeoenvironmental evolution on the Tibetan Plateau: A multidisciplinary approach over deep time to Quaternary timescales

Palaeogeography Palaeoclimatology Palaeoecology, Journal Year: 2024, Volume and Issue: 654, P. 112442 - 112442

Published: Aug. 15, 2024

Language: Английский