Divergent changes in the elevational gradient of vegetation activities over the last 30 years

The reported progressive change of vegetation activity along elevational gradients has important aesthetic and conservation values. With climate change, cooler locations are suggested to warm faster than warmer ones, raising concerns of a more homogenized landscape along the elevation. Here, we use...

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Autores principales: Gao, Mengdi, Piao, Shilong, Chen, Anping, Yang, Hui, Liu, Qiang, Fu, Yongshuo H., Janssens, Ivan A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6611807/
https://www.ncbi.nlm.nih.gov/pubmed/31278320
http://dx.doi.org/10.1038/s41467-019-11035-w
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author Gao, Mengdi
Piao, Shilong
Chen, Anping
Yang, Hui
Liu, Qiang
Fu, Yongshuo H.
Janssens, Ivan A.
author_facet Gao, Mengdi
Piao, Shilong
Chen, Anping
Yang, Hui
Liu, Qiang
Fu, Yongshuo H.
Janssens, Ivan A.
author_sort Gao, Mengdi
collection PubMed
description The reported progressive change of vegetation activity along elevational gradients has important aesthetic and conservation values. With climate change, cooler locations are suggested to warm faster than warmer ones, raising concerns of a more homogenized landscape along the elevation. Here, we use global satellite data to investigate the spatio-temporal dynamics of the elevational gradient (EG) in vegetation greenness (NDVI(max3)), spring (SOS) and autumn phenology (EOS) during 1982–2015. Although we find clear geographical patterns of the EG in NDVI(max3) and SOS, there are no prevalent trends of vegetation homogenization or phenology synchronization along elevational gradients. Possible mechanisms, including spatially heterogeneous temperature lapse rate changes, different vegetation sensitivities to climate change, and human disturbances, may play diverse roles across different regions. Our finding of mixed EG trends and no general rules controlling EG dynamics poses challenges for mitigating possible adverse impacts of climate change on mountainous biological diversity and ecosystem services.
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spelling pubmed-66118072019-07-08 Divergent changes in the elevational gradient of vegetation activities over the last 30 years Gao, Mengdi Piao, Shilong Chen, Anping Yang, Hui Liu, Qiang Fu, Yongshuo H. Janssens, Ivan A. Nat Commun Article The reported progressive change of vegetation activity along elevational gradients has important aesthetic and conservation values. With climate change, cooler locations are suggested to warm faster than warmer ones, raising concerns of a more homogenized landscape along the elevation. Here, we use global satellite data to investigate the spatio-temporal dynamics of the elevational gradient (EG) in vegetation greenness (NDVI(max3)), spring (SOS) and autumn phenology (EOS) during 1982–2015. Although we find clear geographical patterns of the EG in NDVI(max3) and SOS, there are no prevalent trends of vegetation homogenization or phenology synchronization along elevational gradients. Possible mechanisms, including spatially heterogeneous temperature lapse rate changes, different vegetation sensitivities to climate change, and human disturbances, may play diverse roles across different regions. Our finding of mixed EG trends and no general rules controlling EG dynamics poses challenges for mitigating possible adverse impacts of climate change on mountainous biological diversity and ecosystem services. Nature Publishing Group UK 2019-07-05 /pmc/articles/PMC6611807/ /pubmed/31278320 http://dx.doi.org/10.1038/s41467-019-11035-w Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gao, Mengdi
Piao, Shilong
Chen, Anping
Yang, Hui
Liu, Qiang
Fu, Yongshuo H.
Janssens, Ivan A.
Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title_full Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title_fullStr Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title_full_unstemmed Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title_short Divergent changes in the elevational gradient of vegetation activities over the last 30 years
title_sort divergent changes in the elevational gradient of vegetation activities over the last 30 years
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6611807/
https://www.ncbi.nlm.nih.gov/pubmed/31278320
http://dx.doi.org/10.1038/s41467-019-11035-w
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