Fine root dynamics across pantropical rainforest ecosystems

Fine root dynamics across pantropical rainforest ecosystems

© 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 27(2021), 15 vom: 30. Aug., Seite 3657-3680
1. Verfasser: Huaraca Huasco, Walter (VerfasserIn)
Weitere Verfasser: Riutta, Terhi, Girardin, Cécile A J, Hancco Pacha, Fernando, Puma Vilca, Beisit L, Moore, Sam, Rifai, Sami W, Del Aguila-Pasquel, Jhon, Araujo Murakami, Alejandro, Freitag, Renata, Morel, Alexandra C, Demissie, Sheleme, Doughty, Christopher E, Oliveras, Imma, Galiano Cabrera, Darcy F, Durand Baca, Liliana, Farfán Amézquita, Filio, Silva Espejo, Javier E, da Costa, Antonio C L, Oblitas Mendoza, Erick, Quesada, Carlos Alberto, Evouna Ondo, Fidele, Edzang Ndong, Josué, Jeffery, Kathryn J, Mihindou, Vianet, White, Lee J T, N'ssi Bengone, Natacha, Ibrahim, Forzia, Addo-Danso, Shalom D, Duah-Gyamfi, Akwasi, Djaney Djagbletey, Gloria, Owusu-Afriyie, Kennedy, Amissah, Lucy, Mbou, Armel T, Marthews, Toby R, Metcalfe, Daniel B, Aragão, Luiz E O, Marimon-Junior, Ben H, Marimon, Beatriz S, Majalap, Noreen, Adu-Bredu, Stephen, Abernethy, Katharine A, Silman, Miles, Ewers, Robert M, Meir, Patrick, Malhi, Yadvinder
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article allocation biomass fine roots productivity residence time soil turnover Soil
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520 |a Fine roots constitute a significant component of the net primary productivity (NPP) of forest ecosystems but are much less studied than aboveground NPP. Comparisons across sites and regions are also hampered by inconsistent methodologies, especially in tropical areas. Here, we present a novel dataset of fine root biomass, productivity, residence time, and allocation in tropical old-growth rainforest sites worldwide, measured using consistent methods, and examine how these variables are related to consistently determined soil and climatic characteristics. Our pantropical dataset spans intensive monitoring plots in lowland (wet, semi-deciduous, and deciduous) and montane tropical forests in South America, Africa, and Southeast Asia (n = 47). Large spatial variation in fine root dynamics was observed across montane and lowland forest types. In lowland forests, we found a strong positive linear relationship between fine root productivity and sand content, this relationship was even stronger when we considered the fractional allocation of total NPP to fine roots, demonstrating that understanding allocation adds explanatory power to understanding fine root productivity and total NPP. Fine root residence time was a function of multiple factors: soil sand content, soil pH, and maximum water deficit, with longest residence times in acidic, sandy, and water-stressed soils. In tropical montane forests, on the other hand, a different set of relationships prevailed, highlighting the very different nature of montane and lowland forest biomes. Root productivity was a strong positive linear function of mean annual temperature, root residence time was a strong positive function of soil nitrogen content in montane forests, and lastly decreasing soil P content increased allocation of productivity to fine roots. In contrast to the lowlands, environmental conditions were a better predictor for fine root productivity than for fractional allocation of total NPP to fine roots, suggesting that root productivity is a particularly strong driver of NPP allocation in tropical mountain regions 
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650 4 |a allocation 
650 4 |a biomass 
650 4 |a fine roots 
650 4 |a productivity 
650 4 |a residence time 
650 4 |a soil 
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700 1 |a Riutta, Terhi  |e verfasserin  |4 aut 
700 1 |a Girardin, Cécile A J  |e verfasserin  |4 aut 
700 1 |a Hancco Pacha, Fernando  |e verfasserin  |4 aut 
700 1 |a Puma Vilca, Beisit L  |e verfasserin  |4 aut 
700 1 |a Moore, Sam  |e verfasserin  |4 aut 
700 1 |a Rifai, Sami W  |e verfasserin  |4 aut 
700 1 |a Del Aguila-Pasquel, Jhon  |e verfasserin  |4 aut 
700 1 |a Araujo Murakami, Alejandro  |e verfasserin  |4 aut 
700 1 |a Freitag, Renata  |e verfasserin  |4 aut 
700 1 |a Morel, Alexandra C  |e verfasserin  |4 aut 
700 1 |a Demissie, Sheleme  |e verfasserin  |4 aut 
700 1 |a Doughty, Christopher E  |e verfasserin  |4 aut 
700 1 |a Oliveras, Imma  |e verfasserin  |4 aut 
700 1 |a Galiano Cabrera, Darcy F  |e verfasserin  |4 aut 
700 1 |a Durand Baca, Liliana  |e verfasserin  |4 aut 
700 1 |a Farfán Amézquita, Filio  |e verfasserin  |4 aut 
700 1 |a Silva Espejo, Javier E  |e verfasserin  |4 aut 
700 1 |a da Costa, Antonio C L  |e verfasserin  |4 aut 
700 1 |a Oblitas Mendoza, Erick  |e verfasserin  |4 aut 
700 1 |a Quesada, Carlos Alberto  |e verfasserin  |4 aut 
700 1 |a Evouna Ondo, Fidele  |e verfasserin  |4 aut 
700 1 |a Edzang Ndong, Josué  |e verfasserin  |4 aut 
700 1 |a Jeffery, Kathryn J  |e verfasserin  |4 aut 
700 1 |a Mihindou, Vianet  |e verfasserin  |4 aut 
700 1 |a White, Lee J T  |e verfasserin  |4 aut 
700 1 |a N'ssi Bengone, Natacha  |e verfasserin  |4 aut 
700 1 |a Ibrahim, Forzia  |e verfasserin  |4 aut 
700 1 |a Addo-Danso, Shalom D  |e verfasserin  |4 aut 
700 1 |a Duah-Gyamfi, Akwasi  |e verfasserin  |4 aut 
700 1 |a Djaney Djagbletey, Gloria  |e verfasserin  |4 aut 
700 1 |a Owusu-Afriyie, Kennedy  |e verfasserin  |4 aut 
700 1 |a Amissah, Lucy  |e verfasserin  |4 aut 
700 1 |a Mbou, Armel T  |e verfasserin  |4 aut 
700 1 |a Marthews, Toby R  |e verfasserin  |4 aut 
700 1 |a Metcalfe, Daniel B  |e verfasserin  |4 aut 
700 1 |a Aragão, Luiz E O  |e verfasserin  |4 aut 
700 1 |a Marimon-Junior, Ben H  |e verfasserin  |4 aut 
700 1 |a Marimon, Beatriz S  |e verfasserin  |4 aut 
700 1 |a Majalap, Noreen  |e verfasserin  |4 aut 
700 1 |a Adu-Bredu, Stephen  |e verfasserin  |4 aut 
700 1 |a Abernethy, Katharine A  |e verfasserin  |4 aut 
700 1 |a Silman, Miles  |e verfasserin  |4 aut 
700 1 |a Ewers, Robert M  |e verfasserin  |4 aut 
700 1 |a Meir, Patrick  |e verfasserin  |4 aut 
700 1 |a Malhi, Yadvinder  |e verfasserin  |4 aut 
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