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Pàgina inicial > Articles > Articles publicats > Aspect Matters : |
Data: | 2023 |
Resum: | Mountains are vital ecosystems, yet predicting plant growth there is complex due to diverse microclimates on slopes. Equatorial-facing slopes (EFSs) are drier and warmer, and polar-facing slopes (PFSs) are wetter and colder, than their regional macroclimates. Analyzing Moderate Resolution Imaging Spectroradiometer normalized difference vegetation index from 2003 to 2021, we identified a clear geographic pattern of differences in greenness on the two opposite aspects: EFSs were greener than PFSs in cold areas and were browner in dry areas, mainly determined by the relative importance of limitations of temperature and water. PFSs had stronger greening trends than did EPSs, leading to a weakening difference in greenness between EPSs and PFSs in temperature-limited areas, and an intensifying difference in water-limited areas. This suggests the alleviation of temperature limitation and exacerbation of water limitation. Montane ecosystems constitute a "natural laboratory" for deepening our understanding of the temporal evolution of the climatic control of vegetation growth with a space-for-time substitution. |
Ajuts: | European Commission 835541 Agencia Estatal de Investigación TED2021-132627B-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-1333 |
Nota: | Altres ajuts: the Fundación Ramón Areces grant CIVP20A6621 |
Drets: | 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, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Publicat a: | Geophysical Research Letters, Vol. 50, Issue 24 (December 2023) , art. e2023GL105879, ISSN 1944-8007 |
8 p, 931.0 KB |