期刊
BIOTROPICA
卷 46, 期 4, 页码 415-424出版社
WILEY
DOI: 10.1111/btp.12127
关键词
carbon compounds; climate change; Gymnopodium floribundum; Mexico; nitrogen deposition; Piscidia piscipula; Yucatan
类别
资金
- PAPIIT-UNAM [22610]
- Consejo Nacional de Ciencia y Tecnologia-Mexico (CONACYT) [154754]
- CONACYT
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.
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