Regional and seasonal patterns of litterfall in tropical South America

Chave, Jerome; Navarrete, D.; Almeida, S.; Alvarez Davila, Esteban; Aragao, Luiz; Bonal, Damien; Chatelet, P.; Silva Espejo, J.E.; Goret, E.; von Hildebrand, P.; Jimenez Rojas, Eliana Maria; Patiño, S.; Peñuela, M.C.; Phillips, Oliver L.; Stevenson, P. y Malhi, Y. (2010). Regional and seasonal patterns of litterfall in tropical South America. "Biogeosciences", v. 7 (n. 1); pp. 43-55. ISSN 1726-4170. https://doi.org/10.5194/bg-7-43-2010.

Descripción

Título: Regional and seasonal patterns of litterfall in tropical South America
Autor/es:
  • Chave, Jerome
  • Navarrete, D.
  • Almeida, S.
  • Alvarez Davila, Esteban
  • Aragao, Luiz
  • Bonal, Damien
  • Chatelet, P.
  • Silva Espejo, J.E.
  • Goret, E.
  • von Hildebrand, P.
  • Jimenez Rojas, Eliana Maria
  • Patiño, S.
  • Peñuela, M.C.
  • Phillips, Oliver L.
  • Stevenson, P.
  • Malhi, Y.
Tipo de Documento: Artículo
Título de Revista/Publicación: Biogeosciences
Fecha: 2010
Volumen: 7
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (934kB) | Vista Previa

Resumen

The production of aboveground soft tissue represents an important share of total net primary production in tropical rain forests. Here we draw from a large number of published and unpublished datasets (n=81 sites) to assess the determinants of litterfall variation across South American tropical forests. We show that across old-growth tropical rainforests, litterfall averages 8.61±1.91 Mg ha−1 yr−1 (mean ± standard deviation, in dry mass units). Secondary forests have a lower annual litterfall than old-growth tropical forests with a mean of 8.01±3.41 Mg ha−1 yr−1. Annual litterfall shows no significant variation with total annual rainfall, either globally or within forest types. It does not vary consistently with soil type, except in the poorest soils (white sand soils), where litterfall is significantly lower than in other soil types (5.42±1.91 Mg ha−1 yr−1). We also study the determinants of litterfall seasonality, and find that it does not depend on annual rainfall or on soil type. However, litterfall seasonality is significantly positively correlated with rainfall seasonality. Finally, we assess how much carbon is stored in reproductive organs relative to photosynthetic organs. Mean leaf fall is 5.74±1.83 Mg ha−1 yr−1 (71% of total litterfall). Mean allocation into reproductive organs is 0.69±0.40 Mg ha−1 yr−1 (9% of total litterfall). The investment into reproductive organs divided by leaf litterfall increases with soil fertility, suggesting that on poor soils, the allocation to photosynthetic organs is prioritized over that to reproduction. Finally, we discuss the ecological and biogeochemical implications of these results

Más información

ID de Registro: 8765
Identificador DC: http://oa.upm.es/8765/
Identificador OAI: oai:oa.upm.es:8765
Identificador DOI: 10.5194/bg-7-43-2010
URL Oficial: http://www.biogeosciences.net/7/43/2010/bg-7-43-2010.html
Depositado por: Memoria Investigacion
Depositado el: 27 Sep 2011 10:32
Ultima Modificación: 18 Ene 2017 10:11
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM