Precipitation regime and nitrogen addition effects on leaf litter decomposition in tropical dry forests


Por: Bejarano M., Crosby M.M., Parra V., Etchevers J.D., Campo J.

Publicada: 1 jul 2014
Categoría: Ecology, Evolution, Behavior and Systematics

Resumen:
We conducted a year-long field experiment to investigate how nitrogen addition affected decomposition of Piscidia piscipula and Gymnopodium floribundum along a precipitation gradient in the Yucatan Peninsula, Mexico. Nitrogen addition did not affect decomposition rates at the drier sites. However, fertilization at the wettest site increased the decomposition of Gymnopodium litter and decreased the decomposition of Piscidia litter. Water-soluble carbon and lignin, and water-soluble carbon and nitrogen concentrations were the best predictors of decomposition for Gymnopodium and Piscidia litters, respectively. We conclude that the effects of nitrogen addition on decomposition will vary from site to site as a function of mean annual precipitation, inherent soil fertility, and species identity. © 2014 The Association for Tropical Biology and Conservation.

Filiaciones:
Bejarano M.:
 Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico

Crosby M.M.:
 Colegio de Postgraduados, Montecillos, 56230, Mexico

Parra V.:
 Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Merida, 97000, Mexico

Etchevers J.D.:
 Colegio de Postgraduados, Montecillos, 56230, Mexico

Campo J.:
 Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico
ISSN: 00063606
Editorial
WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA, Estados Unidos America
Tipo de documento: Article
Volumen: 46 Número: 4
Páginas: 415-424
WOS Id: 000338766100006