| 川西亚高山云杉人工林恢复过程中土壤有机碳矿化研究 |
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| 引用本文： | 姜发艳,孙辉,林波,刘庆. 川西亚高山云杉人工林恢复过程中土壤有机碳矿化研究[J]. 土壤通报, 2011, 0(1): 91-97 |
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| 作者姓名： | 姜发艳 孙辉 林波 刘庆 |
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| 作者单位： | 四川建筑职业技术学院设备工程系;中国科学院成都生物研究所;四川大学建筑与环境学院; |
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| 基金项目： | 国家自然科学基金项目(308600161、40871124); “西部之光”人才计划“西部博士支助项目”; 中科院知识创新工程“西部行动计划”项目(KZCX2-XB2-02)资助 |
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| 摘 要： | 研究了川西亚高山云杉(Picea asperata Mast.)人工林不同阶段(22、47、65年)及原始林表层(0～30cm)土壤有机碳的矿化,并用两室模型对实验数据进行了回归。结果表明,不同恢复阶段云杉人工林各层土壤(0～10、10～20、20～30cm)有机碳64天累积释放的CO2-C显著大于原始林。两室模型模拟土壤有机碳矿化过程得出土壤活性有机碳(AC)含量及其占总有机碳含量的比例均大于原始林,表明原始林转化为云杉人工林后,土壤有机碳稳定性降低。此外,本文分析了凋落物、微生物、土壤理化性质等因素对云杉人工林土壤有机碳矿化的可能影响。
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| 关 键 词： | 土壤有机碳 碳矿化 易矿化有机碳库 难矿化有机碳库 矿化速率常数 |
Soil Organic Carbon Mineralization of Subalpine Spruce Plantation in Western Sichuan Province |
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| JIANG Fa-yan ,,SUN Hui ,LIN Bo ,LIU Qing. Soil Organic Carbon Mineralization of Subalpine Spruce Plantation in Western Sichuan Province[J]. Chinese Journal of Soil Science, 2011, 0(1): 91-97 |
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| Authors: | JIANG Fa-yan SUN Hui LIN Bo LIU Qing |
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| Affiliation: | JIANG Fa-yan 1,2,SUN Hui 3,LIN Bo 2,LIU Qing 2 (1.Equipment Engineering Department,Sichuan College of Architectural Technology,Deyang 618000,China,2.Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu 610041,3.Department of Environmental Science and Engineering,Sichuan University,Chengdu 610065,China.) |
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| Abstract: | Organic carbon mineralization of topsoil(0-30cm) of spruce(Picea asperata Mast.) plantations at different succession stages(22-,47-and 65-year old) and primary spruce forest in subalpine areas in western Sichuan Province were determined,and data were analyzed and regressed by two-compartment model.The results showed that all of the cumulative emissions of CO2-C from different soil layers(0-10 cm,10-20 cm and 20-30 cm) in all plantations were higher than those in soils of primary forest in the 64-day incubat... |
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| Keywords: | Soil organic carbon Carbon mineralization Active carbon pool Recalcitrance carbon pool Rate constant of mineralization Study on the Spatial Variability of Soil Total Nitrogen in |
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