| Effects of management mode of Chinese pine forest on accumulation of black carbon and particulate organic carbon in the Ziwuling forest region of the Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2011.04.21 |
| Key Words: Chinese pine forest black carbon particulate organic carbon labile organic carbon accumulation |
| Author Name | Affiliation | | XIAO Zhaoxia | Provincial University Key Laboratory of Protection & Utilization of Longdong Bio-resources in Gansu Province, Qingyang, Gansu 745000, China | | WANG Jincheng | Provincial University Key Laboratory of Protection & Utilization of Longdong Bio-resources in Gansu Province, Qingyang, Gansu 745000, China | | LIU Jianxin | Provincial University Key Laboratory of Protection & Utilization of Longdong Bio-resources in Gansu Province, Qingyang, Gansu 745000, China | | WANGxin | Provincial University Key Laboratory of Protection & Utilization of Longdong Bio-resources in Gansu Province, Qingyang, Gansu 745000, China |
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| Abstract: |
| Spatial distribution and the accumulation of BC, POC and LOC under different management modes of Chinese pine forest in the Ziwuling forest region of the Loess Plateau were investigated. The results indicate that there is a significant decreasing trend of BC, POC and LOC under different management modes of Chinese pine forest from its top layer to the lower layer. In the depth between 0～10 cm, there is a trend of BC＞POC＞LOC under all of management modes, as for the depth between 10～20 cm, there is a trend of BC＞POC＞LOC under natural Chinese pine forest and extensive management mode, but the trend in fine management mode presents POC＞LOC＞BC; Furthermore, there is no significant difference of BC/TOC at each soil layer under both natural Chinese pine forest and extensive management modes, but the trend of BC/TOC under fine management mode presents decrease. Meanw
hile, there is a decreasing trend of POC/TOC from the top layer to the lower layer under all the management modes of Chinese pine forest, but as for LOC/TOC, it
presents an increasing trend. |
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