Labile Organic Carbon Pool of Forest Soil in the Badaling Mountainous Area of Beijing
This study aimed to explore the effects of coniferous forest and broadleaf forest on soil labile organic carbon in the Badaling mountainous area of Beijing. The results showed that in the different types of vegetation, total soil organic carbon (SOC), light fraction organic carbon (LFOC) and dissolved organic carbon (DOC) varied by decreasing trend with increasing soil depth. The contents of LFOC and DOC in coniferous forest were significantly lower than those of broadleaf forest at soil depth of 0-10cm and 10-20cm. The ratio of LFOC content to the total SOC content ranged from 14.08％ to 4.63％, while ratio of DOC content to the total SOC content ranged from 1.26V. to 3.15％. The ratio of LFOC content to the total SOC content decreased with increasing soil depth, whereas the other ratios changed by opposite trend. A significant relationship was found between the LFOC and DOC; both of LFOC and DOC were significantly correlated with total SOC. Broadleaf forest is helpful to accumulate SOC.
light fraction organic carbon dissolved organic carbon forest soil
Jixin Cao Yun Tian Xiaoping Wang Xiangyang Zhiyong Wen
Key Lab. Soil and Water Conservation and Desertification Combating, Ministry of Education,College of Key Lab. Soil and Water Conservation and Desertification Combating, Ministry of Education,College of SunKey Lab. Soil and Water Conservation and Desertification Combating, Ministry of Education,College Huairou District Gardening and Greening Bureau, Beijing, China
国际会议
昆明
英文
323-326
2010-10-17（万方平台首次上网日期，不代表论文的发表时间）