期刊论文

中文

中南林业科技大学学报

1673-923X

2016

36

11

65-72

10.14067/j.cnki.1673-923x.2016.11.012

科技部国际科技合作专项目

本校为第一机构

以湘中丘陵区杉木人工林(CL)、马尾松一石栎针阔混交林(PM)、南酸枣落叶阔叶林(CA)、石栎—青冈常绿阔叶林(LG)为对象,研究了中亚热带森林土壤有机碳(SOC)、全氮(TN)、全磷(TP)含量及其生态化学计量特征。结果表明:同一土层SOC、TN、TP含量随着森林树种增加而增加,LG、CA 0 ~ 30 cm土层SOC平均含量显著高于CL,但与PM差异不显著,CA各土壤层TN平均含量均显著高于CL、PM,但与LG差异不显著,CA各土壤层TP平均含量显著高于CL、PM、LG; 4种森林土壤SOC、TN含量随土壤深度增加而下降,呈“倒金字塔”的分布模式,但TP含量随土壤深度变化不明显,呈“圆柱体”的分布模式。LG各土壤层C:N、C:P平均比值最高,其...

Concentrations of SOC, total N and total P were analyzed, and the ratios of C:N, C:P, N:P were estimated in four subtropical forests: Cunninghamia lanceolata plantation forest (CL), Pinus massoniana-Lithocarpus glaber mixed forest (PM), Choerospondias axillaries deciduous broad leaved forest (CA), and L. glaber-Cyclobalanopsis glauca evergreen broad-leaved forest (LG) in Dashanchong Forest Park in Changsha County, Hunan Province, China. The results showed that concentrations of soil organic C, total N, total P increased in the same soil layers with forest tree species increase, the average con...