Migration of vegetation boundary between alpine steppe and meadow on a century-scale across the Tibetan Plateau

NWIPB OpenIR

	Migration of vegetation boundary between alpine steppe and meadow on a century-scale across the Tibetan Plateau
	Wang, Y; Sun, J; He, W; Ye, CC; Liu, BY; Chen, YC; Zeng, T; Ma, SX; Gan, XY; Miao, CY; Zhou, HK; Tsunekawa, A
	2022
发表期刊	ECOLOGICAL INDICATORS
卷号	136
摘要	The distribution of alpine vegetation is highly sensitive to climate change, which attracted the attention of climate scientists as well as ecologists. However, the dominant factors of vegetation distribution showed greatly spatiotemporal variation, especially the alpine grasslands on the Tibetan Plateau, which is known as an amplifier of climate warming. In this study, to identify the dominant factors of vegetation distribution, we verified the reliability and accuracy of the classification of alpine steppe and alpine meadow by Random Forest and tried to provide a new reference for the classification schemes. Dataset collected from the field investigations (200 sites) and previous publications(200 sites) were used in this study for model calibration and validation. Then climate models of CMIP6 were used to forecast the underlying transfers and changes of vegetation boundary in the future. Our results revealed that precipitation may be the dominant driver in the alpine grassland distribution, with the highest relative importance of 41.26%. Through different climate scenarios from 2000 to 2100, the vegetation boundary showed a shift from northeast to southwest. Within the SSP5-8.5 scenario it moves from 94.50 degrees to 93.49 degrees and shifted from north to south by 0.34 degrees. Our results demonstrated the significant role of precipitation in the alpine grassland distribution and revealed the migration of the alpine grassland ecosystem under different climate change scenarios. Our work may be useful to deal with global climate change, early warning, and grassland protection, as well as adaptive management of grassland.
收录类别	SCIE
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/61280
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, Y,Sun, J,He, W,et al. Migration of vegetation boundary between alpine steppe and meadow on a century-scale across the Tibetan Plateau[J]. ECOLOGICAL INDICATORS,2022,136.
APA	Wang, Y.,Sun, J.,He, W.,Ye, CC.,Liu, BY.,...&Tsunekawa, A.(2022).Migration of vegetation boundary between alpine steppe and meadow on a century-scale across the Tibetan Plateau.ECOLOGICAL INDICATORS,136.
MLA	Wang, Y,et al."Migration of vegetation boundary between alpine steppe and meadow on a century-scale across the Tibetan Plateau".ECOLOGICAL INDICATORS 136(2022).