期刊论文

中文

土壤通报

0564-3945

2014

45

5

1137-1143

10.19336/j.cnki.trtb.2014.05.019

“十二五”国家科技支撑计划专题(2012BAD22B0505) 湖南省教育厅项目(12C0440)资助

本校为第一机构

对福寿林场3个龄组杉木林土壤有有机碳与氮磷钾变化特征及其耦合关系进行了研究。结果表明:在杉木林生长发育过程中,0 ~ 60 cm土壤的有机碳、全氮、全磷、全钾含量及碳氮比、碳磷比表现出了幼龄林阶段较高,中龄林阶段降低,成熟林阶段又升高的变化特征,而碳钾比随着杉木林的生长发育呈现出了增加的趋势。3个龄组杉木林土壤有机碳、全氮、全磷含量及碳磷比、碳钾比都表现出了随土层深度增加而减少的规律,但在0 ~ 45 cm下降幅度大,在45 cm以下降幅度减低并趋于稳定。而碳氮比随着土层加深保持相对稳定。幼龄林、中龄林和成熟林在0 ~ 45 cm土层有机碳、全氮、全磷含量占整个土层0 ~ 60 cm有机碳、全...

A study was conducted to investigate the variation characteristics of contents of soil organic carbon, total nitrogen(N), total phosphorous(P) and total potassium(K), as well as their coupling relationships between three age groups of Chinese fir plantations in Fushou Forest Farm of Hunan Province. Results showed that the contents of soil organic carbon(SOC), N, P, K, C:N and C:P varied in the order of mature > juvenile > medium, but an increasing trend on C:K varied in the order of medium > mature > juvenile in 0 ~ 60 cm profiles with the age increasing of Chinese fir plantations. Nevertheles...