期刊论文

中文

水土保持学报

1009-2242

2012

26

3

169-173

10.13870/j.cnki.stbcxb.2012.03.033

国家重点基础研究发展计划（“973”计划）项目（2010CB833501）；

本校为第一机构

对湖南省长沙县大山冲省级森林公园立地条件基本一致的4种森林土壤有机碳（SOC）、全氮（N）含量、贮量及土层分布进行研究。结果表明：不同森林、同一森林的不同土层SOC、N含量和贮量均存在显著差异（p〈0.05）。各土层SOC含量的变化范围分别为杉木林8.66～22.96g/kg,马尾松林13.33～37.50g/kg,南酸枣林13.78～43.58g/kg,青冈林13.33～36.87g/kg。土壤全N含量的变化范围分别为杉木林1.37～2.29g/kg,马尾松林1.29～2.65g/kg,南酸枣林1.69～3.96g/kg,青冈林1.23～3.26g/kg。4种林地SOC和N含量均随土层深度增加而逐渐下降。4种森林土壤SOC贮量差异不显著（p=0.177 6）,N贮量差异极显著（p=0.000 7...

Soil organic carbon（SOC） and nitrogen（N） concentration,storage and distribution in soil profile were investigated in four subtropical forests in hilly area of central Hu’nan province,China.The results showed that SOC and N concentration and storage differed significantly among the four forests and soil depths（p〈0.05）.In general,SOC and N concentration in the four forests decreased with soil depth,ranging from 8.66 g/kg to 22.96 g/kg for C.lanceolata plantation,from 13.33 g/kg to 37.50 g/kg for P.massoniana mixed forest,from 13.78 g/kg t...