Seasonal biological carryover dominates northern vegetation growth
Lian, Xu (Peking University. Sino-French Institute for Earth System Science)
Piao, Shilong (Chinese Academy of Sciences. Center for Excellence in Tibetan Earth Science)
Chen, Anping (Colorado State University. Department of Biology and Graduate Degree Program in Ecology)
Wang, Kai (Peking University. Sino-French Institute for Earth System Science)
Li, Xiangyi (Peking University. Sino-French Institute for Earth System Science)
Buermann, Wolfgang (University of California, Los Angeles. Institute of the Environment and Sustainability)
Huntingford, Chris (Centre for Ecology and Hydrology (UK))
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Xu, Hao (Peking University. Sino-French Institute for Earth System Science)
Myneni, Ranga B. (Boston University. Department of Earth and Environment)

Fecha:	2021
Resumen:	The state of ecosystems is influenced strongly by their past, and describing this carryover effect is important to accurately forecast their future behaviors. However, the strength and persistence of this carryover effect on ecosystem dynamics in comparison to that of simultaneous environmental drivers are still poorly understood. Here, we show that vegetation growth carryover (VGC), defined as the effect of present states of vegetation on subsequent growth, exerts strong positive impacts on seasonal vegetation growth over the Northern Hemisphere. In particular, this VGC of early growing-season vegetation growth is even stronger than past and co-occurring climate on determining peak-to-late season vegetation growth, and is the primary contributor to the recently observed annual greening trend. The effect of seasonal VGC persists into the subsequent year but not further. Current process-based ecosystem models greatly underestimate the VGC effect, and may therefore underestimate the CO2 sequestration potential of northern vegetation under future warming.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Carbon cycle ; Climate-change ecology
Publicado en:	Nature communications, Vol. 12 (February 2021) , art. 983, ISSN 2041-1723

DOI: 10.1038/s41467-021-21223-2
PMID: 33579949

10 p, 1.5 MB

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