Variations in net litter nutrient input associated with tree species influence on soil nutrient contents in a subtropical evergreen broad-leaved forest

作     者：Lu Qiao Doug Allen Schaefer Xiaoming Zou 

作者机构：Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences University of Chinese Academy of Sciences Department of Environmental Studies University of Puerto Rico 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：2014年第59卷第1期

页      面：46-53页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

主　　题：土壤养分含量 亚热带常绿阔叶林 树种 枯落物 输入 营养 养分投入 木质素 

摘      要：The influence of tree species on soils has received much attention,but we know little about either the pattern and underlying mechanisms of net nutrient and carbon inputs under canopy for various tree species or the effects of net nutrient input on soil nutrient *** address these issues,we selected three tree species with distinct leaf sizes and arranged litter traps around the target individuals to test what affected net nutrient and carbon inputs under canopy of target individuals,and how net nutrient inputs influenced soil nutrient *** results showed that net litter manganese(Mn)and lignin inputs were significantly different among these tree species,as well as soil exchangeable potassium(K),available iron(Fe)and available *** results also revealed that the species with the smallest sized leaves may stimulate more net Mn and lignin inputs than the species with the largest sized *** the same time,net nutrient inputs correlated with soil available Fe,while the ratio of lignin to nitrogen of net litter correlated with total phosphorus *** results demonstrated that litter production may be the main factor deciding net nutrient and carbon inputs under different tree species’canopy,which significantly differentiated soil iron’s availability.