亚热带不同树种凋落叶分解对氮添加的响应

陈思路,蔡劲松,林成芳,宋豪威,杨玉盛

Response of leaf litter decomposition of different tree species to nitrogen addition in a subtropical forest

Si-Lu CHEN,Jin-Song CAI,Cheng-Fang LIN,Hao-Wei SONG,Yu-Sheng YANG

表1 亚热带米槠天然林群落特征与土壤表层(0-10 cm)理化性质

Table 1 Community characteristics and topsoil (0-10 cm) physiochemical properties of a subtropical Castanopsis carlesii natural forest

林分特征 Forest characteristics 土壤理化性质 Soil physiochemical properties 林分密度 Stand density (株·hm-2) 郁闭度 Canopy density 平均树高 Mean tree height (m) 平均胸径 Mean DBH (cm) 容重 Bulk density (g·cm-3) 全C Total carbon (%) 全N Total nitrogen (%) 全P Total phosphorus (%) 1 955 0.89 11.9 20 1.12 2.45 0.186 0.021 7