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当前位置: 首页 > 文章 > Soil C and N pools in Chinese fir and evergreen broadleaf forests and their changes with slash burning in mid-subtropical China 土壤圈(英文版) 2006,16 (1)
Position: Home > Articles > Soil C and N pools in Chinese fir and evergreen broadleaf forests and their changes with slash burning in mid-subtropical China Pedosphere 2006,16 (1)

Soil C and N pools in Chinese fir and evergreen broadleaf forests and their changes with slash burning in mid-subtropical China

作  者：
Junyuan Guo;Yusheng Yang;Guangshui Chen;Jinsheng Xie;Peng Li
单  位：
College of Geography Science, Fujian Normal University, Fuzhou 350007 (China);College of Life Science, Xiamen University, Xiamen 361005 (China; College of Life Science, Xiamen University, Xiamen 361005 (China);College of Forestry. Fujian Agriculture and Forestry University, Fuzhou 350002 (China)
关键词：
forest;eb;cf;total n;burn;c
摘  要：
Soil organic carbon (C) and total nitrogen (N) pools of a Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) (CF) forest, and an evergreen broadleaf (EB) forest located in mid-subtropical, southeastern China, were compared before clearcutting, with the effect of slash burning on organic C and total N in the top 10 cm of soil before and after burning also being evaluated. Prior to clearcutting CF forest had significantly lower (P < 0.05) organic C and total N in the soil (0-100 cm) compared to EB forest with approximately 60% of the C and N at the two forest sites stored at the 0 to 40 cm soil. In post-burn samples of the 0-10 cm depth at 5 days, 1 year, and 5 years for CF and EB forests, significantly lower levels (P < 0.05) of organic C and total N than those in the pre-burn samples were observed. Compared to the pre-burn levels, at post-burn year 5, surface soil organic C storage was only 85% in CF forest and 72% in EB forest, while total N storage was 77% for CF forest and 73% for EB forest. Slash burning caused marked long-term changes in surface soil C and N in the two forest types.

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