期刊论文

中文

浙江农林大学学报

2095-0756

2004

21

4

418-423

10.3969/j.issn.2095-0756.2004.04.012

国家科技部重点野外科学观测试验站资助项目（2000 076）； 国家科技部基础研究重大项目（2102）； 国家林业局重点科研项目（2001 7;2001 29）； 中南林学院青年基金资助项目（0419）；

本校为第一机构

以杉木Cunninghamia lanceolata人工林为研究对象,并以不同经营方式的杉木人工林采伐迹地为对照,研究了杉木人工林不同层次土壤中有机碳的垂直分布特征及其与土壤pH值、全氮、C/N比的相关关系.结果表明:杉木人工林土壤有机碳质量分数随着土壤深度的增加而下降,不同层次土壤有机碳质量分数的分异表现为:0～15 cm土层(20.6 g·kg-1)＞15～30 cm土层(17.1 g·kg-1)＞30～45 cm土层(12.4 g·kg-1)＞45～60 cm土层(9.8 g·kg-1)＞60～75 cm土层(8.2 g·kg-1),3种不同经营方式杉木人工林采伐迹地土壤中平均有机碳质量分数依大小顺序排列为:杉木林地(13.6 g·kg-1)＞经济林地(12.3 g·kg-1)＞农用后撂荒...

Taking Chinese fir plantation as the research objective, vertical distribution of soil organic carbon (SOC) and its relationship with soil pH value, total nitrogen content and soil C/N ratio in Chinese fir plantation were studied. In addition, different land use types of Chinese fir plantation were compared. The results showed that the vertical distribution of SOC in Chinese fir plantation varied with soil depth. The differences of SOC concentration in different layers were as follows: 0-15cm soil layer(20.6 g·kg~(-1))>15-30 cm soil layer(17.1...