摘要
为探讨退耕还林不同树种林地土壤有机碳积累特征,选取了贵州省盘县不同退耕还林年限的柳杉林和杉木林地为研究对象,并以耕地为对照,进行了土壤有机碳变化对比研究。结果表明:退耕还林不同树种林地0~60 cm土层平均土壤有机碳、活性组分、颗粒组分含量均随林龄的增大呈先减少后增加的趋势,并且随土层的加深而减少。
In order to discuss the characteristics of soil organic carbon accumulation in different forest species in the area of returning farmland to forest,the authors selected the different age groups of Cryptomeria fortunei and Cunninghamia lanceolata plantations in Panxian County,Guizhou Province as the research object.Compared with the cultivated land,the changes of soil organic carbon were compared the study.The results showed that the contents of soil organic carbon,active components and granular components in0~60cm soil layer of different tree species in the conversion of cropland to forest decreased,then increased with increasing age,and with the deepening of the soil layer cut back.
作者
林虹
陈先刚
Lin Hong;Chen Xiangang(College of Ecology and Soil and Water Conservation, Southwest Forestry University, Kunming Yunnan 650224, China)
出处
《环境与发展》
2018年第2期112-113,共2页
Environment & Development
基金
国家自然科学基金面上项目"云贵高原退耕还林工程土壤碳储量动态变化研究"(41263008)
关键词
退耕还林
土壤有机碳
土壤有机碳活性组分
土壤有机碳颗粒组分
Conversion of cropland to forest
Soil organic carbon
Soil organic carbon active fraction
Soil organic carbon fraction
