短期施氮肥降低杉木幼林土壤的根系和微生物呼吸

王清奎, 李艳鹏, 张方月, 贺同鑫

Short-term nitrogen fertilization decreased root and microbial respiration in a young Cunninghamia lanceolata plantation

WANG Qing-Kui,LI Yan-Peng,ZHANG Fang-Yue,HE Tong-Xin

表1 施肥前各处理土壤(0-10 cm)基本性质及杉木幼林生长情况

Table 1 Property of soils (0-10 cm) and growth conditions of young Cunninghamia lanceolata plantation before fertilization

全碳 Total C (g·kg-1) 全氮 Total N (g·kg-1) 全磷 Total P (g·kg-1) pH 容重 Bulk density (g·cm-3) 树高 Tree height (m) 胸径 Diameter at breast height (cm) 对照 Control 17.2 1.43 0.339 4.50 1.28 5.71 8.27 施氮 N fertilization 18.6 1.55 0.334 4.33 1.22 6.01 8.64