Pedosphere 13(3): 271--278, 2003
ISSN 1002-0160/CN 32-1315/P
©2003 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Changes in soil carbon pools induced by substitution of plantation for native forest |
| XU Qiu-Fang1,2 and XU Jian-Ming1 |
1 Department of Resource Science, College of Environment and Resource Science, Zhejiang University, Huajiachi Campus, Hangzhou 310029 (China)
2 Department of Resources and Environmental Science, Zhejiang Forestry College, Lin'an 311300 (China) |
| ABSTRACT |
| Changes in soil carbon pools under Chinese fir (Cunninghamia lanceolata) and bamboo (Phyllostachys pubescens) plantations substituted for a native forest (Quercus acutissima, Cyclobalanopsis glauca, Gas-tanopsis sclerophylla, Platycarya strobilacea, Lithocarpus glaber) were studied on the hills with acid parent rock and soils classified as red soils (Ferrisols) in Huzhou, Zhejiang Province of east China. It was found that total soil organic carbon (TSOC), easily oxidisable carbon (EOC) and water-soluble organic carbon (WSOC) under bamboo plantation were increased, but microbial biomass carbon (MBC) was decreased. On the contrary, Chinese fir induced declines of all fractions of C including TSOC, EOC, WSOC and MBC. The percentages of the active fractions of soil C (EOC and WSOC) were increased in the plantations as compared to the native broad-leaved forest, but proportions of soil organic C as MBC were decreased. It could be concluded that bamboo plantation had a great ability of not only fixing C but also accelerating soil C pool cycle, improving nutrient and microorganism activity; therefore, it is a good ecosystem and could be recommended for wide development. Chinese fir would shrink the soil C pool and deteriorate soil biological fertility, so it did not benefit CO2 fixing and land sustainable utilization. |
| Key Words: bamboo, broad-leaved forest, Chinese fir, soil carbon |
| Citation: Xu, Q. F. and Xu, J. M. 2003. Changes in soil carbon pools induced by substitution of plantation for native forest. Pedosphere. 13(3): 271-278. |
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