Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes

Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes

15 páginas.- 6 figuras.- 2 tablas.- referencias.- Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.agrformet.2024.110298

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Main Authors: Dou, Weiqiang, Xiao, Bo, Sáez-Sandino, Tadeo, Delgado-Baquerizo, Manuel
Other Authors: National Natural Science Foundation of China
Format: artículo biblioteca
Language:English
Published: Elsevier 2025-01-15
Subjects:Take urgent action to combat climate change and its impacts,
Online Access:http://hdl.handle.net/10261/371775
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id dig-irnas-es-10261-371775
record_format koha
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Take urgent action to combat climate change and its impacts
Take urgent action to combat climate change and its impacts
spellingShingle Take urgent action to combat climate change and its impacts
Take urgent action to combat climate change and its impacts
Dou, Weiqiang
Xiao, Bo
Sáez-Sandino, Tadeo
Delgado-Baquerizo, Manuel
Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
description 15 páginas.- 6 figuras.- 2 tablas.- referencias.- Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.agrformet.2024.110298
author2 National Natural Science Foundation of China
author_facet National Natural Science Foundation of China
Dou, Weiqiang
Xiao, Bo
Sáez-Sandino, Tadeo
Delgado-Baquerizo, Manuel
format artículo
topic_facet Take urgent action to combat climate change and its impacts
author Dou, Weiqiang
Xiao, Bo
Sáez-Sandino, Tadeo
Delgado-Baquerizo, Manuel
author_sort Dou, Weiqiang
title Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
title_short Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
title_full Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
title_fullStr Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
title_full_unstemmed Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
title_sort coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes
publisher Elsevier
publishDate 2025-01-15
url http://hdl.handle.net/10261/371775
work_keys_str_mv AT douweiqiang coexistenceofvascularplantsandbiocrustsunderchangingclimatesandtheirinfluenceonecosystemcarbonfluxes
AT xiaobo coexistenceofvascularplantsandbiocrustsunderchangingclimatesandtheirinfluenceonecosystemcarbonfluxes
AT saezsandinotadeo coexistenceofvascularplantsandbiocrustsunderchangingclimatesandtheirinfluenceonecosystemcarbonfluxes
AT delgadobaquerizomanuel coexistenceofvascularplantsandbiocrustsunderchangingclimatesandtheirinfluenceonecosystemcarbonfluxes
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spelling dig-irnas-es-10261-3717752024-11-14T07:12:03Z Coexistence of vascular plants and biocrusts under changing climates and their influence on ecosystem carbon fluxes Dou, Weiqiang Xiao, Bo Sáez-Sandino, Tadeo Delgado-Baquerizo, Manuel National Natural Science Foundation of China Chinese Universities Scientific Fund Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) European Commission Xiao, Bo [0000-0002-9544-4207] Sáez-Sandino, Tadeo [0000-0001-9539-4716] Delgado-Baquerizo, Manuel [0000-0002-6499-576X] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] Take urgent action to combat climate change and its impacts 15 páginas.- 6 figuras.- 2 tablas.- referencias.- Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.agrformet.2024.110298 Vascular plants and biocrusts are highly vulnerable to climate change in drylands wherein they control carbon (C) cycling. In drylands, these organisms are known to thrive alone or coexisting with each other. Yet, how multiple combinations of biocrusts and vascular plants influence C cycling remains poorly understood. Here, we conducted a mesocosm field experiment in the Chinese Loess Plateau to investigate the influence of six contrasting microsites (bare soil, biocrust, shrub alone, shrub with biocrust, grass alone, and grass with biocrust) on ecosystem C fluxes, including changes in net ecosystem exchange (NEE), ecosystem respiration (Re), and gross primary productivity (GPP). We also analyzed the influence of environmental factors (e.g., water and solar radiation) on ecosystem C fluxes across different microsites. Finally, the annual (2022.6–2023.6) NEE was simulated and estimated based on a random forest model to quantify the contributions (net C uptake or emissions) of biocrusts and vascular plants and their coexistence to C budgets in drylands. Our results showed that biocrusts and vascular plants largely regulate C fluxes in this dryland, and more importantly, that the manner in which these biotic components are combined, strongly influence the outcomes for C fluxes. In particular, we showed that microsites of biocrusts, vascular plants, and their coexistence increased GPP and Re by 1.2–6.1, 1.5–56.2, and 1.1–50.0 times, respectively, compared to bare soil microsite. All these microsites supported a net C uptake (–0.31 to –10.84 μmol m–2 s–1) except from bare soil, which was net C emission (+1.39 μmol m–2 s–1). However, we also found that compared to vascular plant microsites, biocrust-vascular plant coexistence reduced NEE, Re, and GPP by 21 %–29 % (closer to zero), 39 %–40 %, and 12 %–33 % respectively, suggesting some sort of competition among biotic components. Also, annual NEE was 37 %–159 % (closer to zero) lower at biocrust-vascular plant coexistence compared to biocrusts or vascular plants thriving alone. Correlation analysis results showed that temporal variation in C fluxes of biocrusts, vascular plants, and their coexistence were mainly driven by soil water content and photosynthetically active radiation. In summary, our work showed that vascular plants and biocrusts are key drivers of C cycling in this dryland, and further provide novel insights that considering the different biotic components of these drylands alone and in combination is critical to finetune our measurements for C fluxes in a context of climate change. This work was supported by the National Natural Science Foundation of China (no. 42077010), and the Chinese Universities Scientific Fund (no. Z1090324158). M.D-B. acknowledges support from TED2021-130908B-C41/AEI/10.13039/501100011033/Unión Europea Next Generation EU/PRTR, and from the Spanish Ministry of Science and Innovation for the I + D + i project PID2020-115813RA-I00 funded by MCIN/AEI/10.13039/501100011033. Peer reviewed 2024-11-14T07:12:03Z 2024-11-14T07:12:03Z 2025-01-15 artículo Agricultural and Forest Meteorology 360: 110298 (2025 0168-1923 http://hdl.handle.net/10261/371775 10.1016/j.agrformet.2024.110298 1873-2240 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/TED2021-130908B-C41 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115813RA-I00/ES/INNOVACION ASOCIADA A LA BIODIVERSIDAD DEL SUELO PARA AUMENTAR LA PRODUCCION Y SOSTENIBILIDAD DE ZONAS AGRICOLAS EN UN CONTEXTO DE CAMBIO CLIMATICO / http://dx.doi.org/10.1016/j.agrformet.2024.110298 Sí none Elsevier

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