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Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests

Abstract:

The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these forests account for more carbon assimilation and storage than any other terrestrial ecosystem. Based on a unique combination of seasonal pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements and 35 litter productivity measurements), their associated canopy photosynthetic capacity (enhanced vegetation index, EVI) and climate, we ask how carbon assimilation and aboveground allocation are related to climate seasonality in tropical forests and how they interact in the seasonal carbon cycle. We found that canopy photosynthetic capacity seasonality responds positively to precipitation when rainfall is < 2000ĝ€-mmĝ€-yrĝ'1 (water-limited forests) and to radiation otherwise (light-limited forests). On the other hand, independent of climate limitations, wood productivity and litterfall are driven by seasonal variation in precipitation and evapotranspiration, respectively. Consequently, light-limited forests present an asynchronism between canopy photosynthetic capacity and wood productivity. First-order control by precipitation likely indicates a decrease in tropical forest productivity in a drier climate in water-limited forest, and in current light-limited forest with future rainfall < 2000ĝ€-mmĝ€-yrĝ'1. Author(s) 2016.

Año de publicación:

2016

Keywords:

    Fuente:

    googlegoogle
    scopusscopus

    Tipo de documento:

    Article

    Estado:

    Acceso abierto

    Áreas de conocimiento:

    • Ecología
    • Cambio climático
    • Clima

    Áreas temáticas:

    • Huertos, frutas, silvicultura
    • Ecología

    Contribuidores:

    Krepkowski J.Krepkowski J.
    Swaine M.D.Swaine M.D.
    Santana H.Santana H.
    Henrique Da Silva Mauricio P.Henrique Da Silva Mauricio P.
    Eijji Maeda E.Eijji Maeda E.
    Lieberman D.Lieberman D.
    Rossi V.Rossi V.
    Marques M.C.M.Marques M.C.M.
    Bonal D.Bonal D.
    Finger C.A.G.Finger C.A.G.
    Cardoso F.C.G.Cardoso F.C.G.
    Rodrigo Rossatto D.Rodrigo Rossatto D.
    Tomazello-Filho M.Tomazello-Filho M.
    Gliniars R.Gliniars R.
    Couralet C.Couralet C.
    Chave J.Chave J.
    Koloski Chagas R.Koloski Chagas R.
    Valerio Kohler S.Valerio Kohler S.
    Drew D.M.Drew D.M.
    Milani J.E.D.F.Milani J.E.D.F.
    Sebastian Becker G.Sebastian Becker G.
    Miranda Toledo M.Miranda Toledo M.
    Longhi Santos T.Longhi Santos T.
    Elifuraha E.Elifuraha E.
    Homeier J.Homeier J.
    Raquel Kanieski M.Raquel Kanieski M.
    Verbesselt J.Verbesselt J.
    Bräuning A.Bräuning A.
    Silveira M.Silveira M.
    Consuelo De Oliveira E.Consuelo De Oliveira E.
    Maria V.R.B.Maria V.R.B.
    Chidumayo E.N.Chidumayo E.N.
    Hector Maza ChambaHector Maza Chamba
    Ligia MazaLigia Maza
    Irving Brown F.Irving Brown F.
    Prior L.D.Prior L.D.
    Dalitz H.Dalitz H.
    Lemos-Filho J.P.Lemos-Filho J.P.
    Schulze M.Schulze M.
    Volkmer De Castilho C.Volkmer De Castilho C.
    Ferreira Fedele L.Ferreira Fedele L.
    Plissier R.Plissier R.
    Sergio Lisi C.Sergio Lisi C.
    Khoon Kho L.Khoon Kho L.
    Clark D.A.Clark D.A.
    Carvalho F.A.Carvalho F.A.
    Figueiredo Filho A.Figueiredo Filho A.
    Beeckman H.Beeckman H.
    Jnior L.F.Jnior L.F.
    Rutishauser E.Rutishauser E.
    Volland F.Volland F.
    Liana Lisboa Melgaço K.Liana Lisboa Melgaço K.
    Vincent G.Vincent G.
    Julio Camarero Martínez J.Julio Camarero Martínez J.
    Galvão F.Galvão F.
    Vieira S.A.Vieira S.A.
    César Franco A.César Franco A.
    Dünisch O.Dünisch O.
    De Souza Arruda L.De Souza Arruda L.
    Fedele M.Fedele M.
    Malhi Y.Malhi Y.
    Toledo M.Toledo M.
    Selhorst D.Selhorst D.
    Rodrigues Silva W.Rodrigues Silva W.
    Wagner F.H.Wagner F.H.
    O'Brien J.J.O'Brien J.J.
    Ayala J.L.L.Ayala J.L.L.
    Regina Capellotto Costa F.Regina Capellotto Costa F.
    Bowman D.M.J.S.Bowman D.M.J.S.
    Spannl S.Spannl S.
    Marques R.Marques R.
    Griffiths A.D.Griffiths A.D.
    Toledo J.J.Toledo J.J.
    Grogan J.Grogan J.
    Boanerges Souza D.Boanerges Souza D.
    Eugene Lieberman M.Eugene Lieberman M.
    Mbwambo L.Mbwambo L.
    Devineau J.L.Devineau J.L.
    Ross M.Ross M.
    Hérault B.Hérault B.
    F. Oberbauer S.F. Oberbauer S.
    Alejandro Roig F.Alejandro Roig F.
    Cesar Botosso P.Cesar Botosso P.
    da Silva W.C.da Silva W.C.
    Murphy B.P.Murphy B.P.
    Durigan G.Durigan G.
    Okada N.Okada N.
    Resende De Castro V.Resende De Castro V.
    Ignacio Valdez Hernández J.Ignacio Valdez Hernández J.
    Toma T.Toma T.
    Rowland L.Rowland L.
    Guan K.Guan K.
    Baker T.R.Baker T.R.
    Gebrekirstos A.Gebrekirstos A.
    Anderson L.O.Anderson L.O.
    Stahl C.Stahl C.
    Maurício Lima De Alencastro Graça P.Maurício Lima De Alencastro Graça P.
    Koenig J.Koenig J.
    Angela Mendivelso H.Angela Mendivelso H.
    de Camargo P.B.de Camargo P.B.
    Brede B.Brede B.