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《Journal of Beijing Forestry University》 2005-02
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Fine root distribution and turnover in a broad-leaved and Korean pine climax forest of the Changbai Mountain in China.

YANG Li-yun; LI Wen-hua. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, P.R. China.  
This study is focused on the vertical distribution, production and turnover of the fine roots in a broad-leaved and Korean pine climax forest of the Changbai Mountain Reserve. The results show that the average biomass of fine roots is 827.8 g/m 2. The vertical distribution of fine roots accords with exponential regression curve and abundant fine roots are concentrated in the 0~10 cm top soil. Soil bulk density, temperature, and C and N content affect the fine root depth distribution significantly (P0.01). In the broad-leaved Korean pine climax forest, the fine root climax production of the community occurs in July and October, but the dominant arboreal species, understory arboreal species and fine roots of grass have a different production dynamics. It is important to sort the fine root species because accurate fine root production sources have a different fine root dynamics. Based on the dominant arboreal species, understory arboreal species and fine roots of grass dynamic, the annual production of community's fine roots is 912.4 g/m 2.
【Fund】: 中国科学院地理资源研究所知识创新主干专题 (CX10G E0 1 0 2 0 3 );; 中美国际合作项目 ( 0 0 CA 112 42 3 43 0 17)
【CateGory Index】: S718.54
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