{"id":2879,"date":"2025-01-27T15:55:12","date_gmt":"2025-01-27T13:55:12","guid":{"rendered":"https:\/\/urbag.eu\/?p=2879"},"modified":"2025-01-27T15:55:12","modified_gmt":"2025-01-27T13:55:12","slug":"new-publication-in-global-biogeochemical-cycles","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2025\/01\/27\/new-publication-in-global-biogeochemical-cycles\/","title":{"rendered":"New publication in “Global Biogeochemical Cycles”"},"content":{"rendered":"

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See full article\/ Veure l’article complet<\/strong><\/a><\/p>\n

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English:<\/strong><\/p>\n

Heat and drought events are increasing in frequency and intensity, posing significant risks to natural and agricultural ecosystems with uncertain effects on the net ecosystem CO2 exchange (NEE). The current Vegetation Photosynthesis and Respiration Model (VPRM) was adjusted to include soil moisture impacts on the gross ecosystem exchange (GEE) and respiration (RECO) fluxes to assess the temporal variability of NEE over south-western Europe for 2001\u20132022. Warming temperatures lengthen growing seasons, causing an increase in GEE, which is mostly compensated by a similar increment in RECO. As a result, there is a modest increase in the net carbon sink of 0.69 gC m\u22122 yr\u22121 but with high spatial and annual variability. The heatwave of 2022 reduced net carbon uptake by 91.7 TgC, a 26.4% decrease from the mean. The interannual variability of NEE is more influenced by drought in temperate humid regions than in Mediterranean semi-arid regions. These results emphasize the vulnerability of the net carbon sink as drying trends could revert the NEE trends, as it is happening for croplands in the French Central Massif.<\/p>\n

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Catal\u00e0:<\/strong><\/p>\n

Els episodis de calor i sequera estan augmentant en freq\u00fc\u00e8ncia i intensitat, plantejant riscos significatius per als ecosistemes naturals i agr\u00edcoles, amb efectes incerts sobre l\u2019intercanvi net de CO2 de l\u2019ecosistema (NEE). El model actual de Fotos\u00edntesi i Respiraci\u00f3 de la Vegetaci\u00f3 (VPRM) s’ha ajustat per incloure els impactes de la humitat del s\u00f2l en els fluxos de l\u2019intercanvi brut de l\u2019ecosistema (GEE) i la respiraci\u00f3 (RECO) per avaluar la variabilitat temporal del NEE al sud-oest d\u2019Europa durant el per\u00edode 2001\u20132022. L\u2019increment de les temperatures allarga les temporades de creixement, provocant un augment del GEE, que queda majorit\u00e0riament compensat per un increment similar del RECO. Com a resultat, hi ha un modest increment de la captura neta de carboni de 0,69 gC m\u22122 any\u22121, per\u00f2 amb una alta variabilitat espaial i anual. L’onada de calor del 2022 va reduir la captura neta de carboni en 91,7 TgC, un descens del 26,4% respecte a la mitjana. La variabilitat interanual del NEE est\u00e0 m\u00e9s influ\u00efda per la sequera en regions temperades humides que en regions semi\u00e0rides mediterr\u00e0nies. Aquests resultats posen en relleu la vulnerabilitat de la retenci\u00f3 neta de carboni, ja que les tend\u00e8ncies de dessecaci\u00f3 podrien revertir les tend\u00e8ncies del NEE, com est\u00e0 passant en els camps de cultiu al Mass\u00eds Central franc\u00e8s.<\/p>\n

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Figure: Area of study and biogeographical regions of this study.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Title: Heat and Drought Events Alter Biogenic Capacity to Balance CO2 Budget in South-Western Europe\/
\nHeat and drought events are increasing in frequency and intensity, posing significant risks to natural and agricultural ecosystems with uncertain effects on the net ecosystem CO2 exchange. The current Vegetation Photosynthesis and Respiration Model (VPRM) was adjusted to include soil moisture impacts on the gross ecosystem exchange and respiration.<\/p>\n","protected":false},"author":3153,"featured_media":2888,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[229,367,21,368,331,369,364,370,371,333,248,372],"class_list":["post-2879","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-article","tag-biogenic-capacity","tag-co2","tag-co2-budget","tag-concentracions-de-co2","tag-drought","tag-ecosystems","tag-heat","tag-mediterranean","tag-metropolitan-area-of-barcelona","tag-vegetation","tag-vprm"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/2879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/users\/3153"}],"replies":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/comments?post=2879"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/2879\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/2888"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=2879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=2879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=2879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}