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研究报告目录 |
Preliminary Response of Soil Fauna to Simulated N Deposition in Three Typical Subtropical Forests |
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| 出 版 社：Pedosphere |
| 发表时间：2006 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：XU Guo-Liang, MO Jiang-Ming, ZHOU Guo-Yi and FU Sheng-Lei |
| 点 击 率：440674 |
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| 关 键 字(英文)：Dinghushan Biosphere Reserve, N deposition, soil fauna, subtropical China |
| 摘 要(英文)：A field-scale experiment arranged in a complete randomized block design with three N addition treatments including
a. control (no addition of N), a low N (5 g rn-' year-'), and a medium N (10 g rnp2 year-') was performed in each of
the three typical forests, a pine (Pinus massoniana Lamb.) forest (PF), a pine-broadleaf mixed forest (MF) and a mature
monsoon evergreen broadleaf forest (MEBF), of the Dinghushan Biosphere Reserve in subtropical China to study the
response of soil fauna community to additions of N. Higher NH; and NO, concentrations and a lower soil pH occurred
in the medium N treatment of MEBF, whereas the NO, concentration was the lowest in PF after the additions of N. The
response of the density, group abundance and diversity index of soil fauna to addition of N varied with the forest type,
and all these variables decreased with increasing N under MEBF but the trend was opposite under PF. The N treatments
had no significant effects on these variables under MF. Compared with the control plots, the medium N treatment had
significant negative effect on soil fauna under MEBF. The group abundance of soil fauna increased significantly with
additions of higher N rates under PF. These results suggested that the response of soil fauna to N deposition varied with
the forest type and N deposition rate, and soil N status is one of the important factors affecting the response of soil fauna
to N deposition. |
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 Preliminary response of soil fauna to simulated N deposition in three typical subtropical forests_2006 莫江明，周国逸.pdf |
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