| 武夷山不同海拔土壤水溶性有机碳的含量特征 |
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| 引用本文： | 周焱,徐宪根,阮宏华,汪家社,方燕鸿,吴焰玉,徐自坤.武夷山不同海拔土壤水溶性有机碳的含量特征[J].南京林业大学学报(自然科学版),2009,0(4):48-52. |
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| 作者姓名： | 周焱 徐宪根 阮宏华 汪家社 方燕鸿 吴焰玉 徐自坤 |
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| 作者单位： | 1. 南京林业大学,江苏省林业生态工程重点实验室,江苏,南京,210037
2. 福建武夷山国家级自然保护区管理局,福建,武夷山,354300 |
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| 基金项目： | 国家自然科学基金资助项目，国家林业局公益性行业(林业)科研项目 |
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| 摘 要： | 土壤水溶性有机碳(WSOC)是土壤碳循环中最活跃的组成部分之一。采用TOC VCPN总有机碳仪测定了武夷山4个典型海拔地的植被土壤水溶性有机碳的含量，分析了土壤水溶性有机碳与土壤因子的关系。结果表明：不同林分间土壤水溶性有机碳含量随海拔上升而增加，随土层深度的增加而减少；土壤水溶性有机碳含量占总有机碳的比值介于0.02%~0.16%，以高山草甸10~25 cm土层最高，常绿阔叶林25~40 cm土层最低；不同海拔梯度的土壤水溶性有机碳与总有机碳、微生物量碳、土壤湿度、全氮存在显著线性正相关，与土壤温度、pH之间无相关性。
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| 关 键 词： | 植被类型 海拔 土壤水溶性有机碳 土壤因子 武夷山 |
Content character of WSOC among four vegetation types along an elevation gradients in Wuyi Mountain |
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| ZHOU Yan,XU Xian-gen,RUAN Hong-hua,WANG Jia-she,FANG Yan-hong,WU Yan-yu,XU Zi-kun.Content character of WSOC among four vegetation types along an elevation gradients in Wuyi Mountain[J].Journal of Nanjing Forestry University(Natural Sciences ),2009,0(4):48-52. |
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| Authors: | ZHOU Yan XU Xian-gen RUAN Hong-hua WANG Jia-she FANG Yan-hong WU Yan-yu XU Zi-kun |
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| Institution: | 1.Jiangsu Key Laboratory of Forestry and Ecological Engineering, Nanjing Forestry University, Nanjing 210037, China;
2.Administrative Bureau of Wuyishan National Nature Reserve, Wuyishan 354300, China |
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| Abstract: | Soil water-soluble organic carbon(WSOC) is an important component in soil carbon cycling.The soil water-soluble organic carbon among four vegetation types with an elevation gradients and the correlations between soil WSOC and some other soil factors were analyzed.The results revealed:(1)The amount of WSOC became bigger when the elevation went higher,and it became smaller when the soil layers became deeper;(2)The percentage of WSOC to TOC varied from 0.02 to 0.16,the highest was Alpine meadow soil layer of 1... |
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