| 中亚热带人工经济林土壤有机碳含量及分布 |
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| 引用本文： | 王超,杨智杰,黄蓉,刘强,杨玉盛.中亚热带人工经济林土壤有机碳含量及分布[J].福建地理,2011(2):36-41. |
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| 作者姓名： | 王超 杨智杰 黄蓉 刘强 杨玉盛 |
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| 作者单位： | 湿润亚热带山地生态国家重点实验室培育基地;福建师范大学地理科学学院;福建师范大学地理研究所; |
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| 基金项目： | 国家科技支撑计划项目子课题(2008BAD95B08); 国家自然科学基金项目(40901126) |
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| 摘 要： | 人工经济林在中国南方种植面积大,并有不断增加的趋势.人工经济林生态系统受人为周期性经营活动影响比较大,是重要的流动性碳库.因此,选择福建省建瓯市万木林自然保护区内本地条件基本一致的毛竹(Phyllostachys heterocycla)、柑橘(Citrus reticulata Blanco)和锥栗(Castanea henryi)作为研究对象,探讨其土壤有机碳含量及其垂直分布特征,结果表明:3种林地土壤剖面有机碳含量的变化范围分别为毛竹林5.91～19.18 g.kg-1、柑橘5.70～13.31g.kg-1、锥栗3.84～10.78 g.kg-1,3种林地土壤有机碳含量随着深度的增加呈现递减趋势;3种林地0～20 cm、20～40 cm层土壤有机碳含量与40～60 cm、60～80 cm、80～100 cm各层均存在显著性差异(P<0.05);3种林地间土壤有机碳储量均存在显著性差异(P<0.05);使用对数方程对3种林地土壤有机碳含量随土壤深度的变化进行拟合均达到显著水平(P<0.05);土壤有机碳含量与土壤全N、C/N比之间存在一定的相关性,特别是3种林地土壤有机碳含量均与土壤全N含量的相关性最好(...
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| 关 键 词： | 有机碳含量 垂直分布 柑橘 锥栗 毛竹 |
Content and Distribution of Soil Organic Carbon in Economic Plantation of Mid-subtropical China |
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| WANG Chao,YANG Zhi-jie,HUANG Rong,LIU Qiang,YANG Yu-sheng.Content and Distribution of Soil Organic Carbon in Economic Plantation of Mid-subtropical China[J].Fujian Geography,2011(2):36-41. |
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| Authors: | WANG Chao YANG Zhi-jie HUANG Rong LIU Qiang YANG Yu-sheng |
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| Institution: | WANG Chao,YANG Zhi-jie,HUANG Rong,LIU Qiang,YANG Yu-sheng(1.State Key Laboratory of Humid Subtropical Mountain Ecology,350007,Fuzhou,China,2.a.School of Geographical Sciences,b.Institute of Geography,Fujian Normal University,China) |
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| Abstract: | The economic plantations,whose area seems to be increasing,are important composition of forest resources in the south of China.Ecosystems of economic plantations are intensively influenced by periodic management activities and their soil is the important liquidity carbon pool.Therefore,the soil organic carbon content and vertical distribution features in Phyllostachys heterocycla,Citrus reticulata Blanco and Castanea henryi were investigated under similar soil characters in Wanmulin Nature Reserve in Jian′ou City,China.The results showed that soil carbon content in the three forests decreased generally with soil depth,with a range of 5.91~19.18 g·kg-1,5.70~13.31 g·kg-1 and 3.84~10.78 g·kg-1.Significant differences were found among the three forests in the soil depth of 0~20 cm,20~40 cm,40~60 cm,60~80 cm and 80~100 cm（P0.05）.Great significant differences have appeared among three forests concerning soil organic content（P0.05）.The distribution of SOC content in soil profile in different forest types could be expressed as logarithmic equation with the increase of the soil depth.Soil organic carbon content was positively correlated with soil total nitrogen content and C/N ratio.Especially,in the three forests,there was significant correlation between soil organic carbon content and total nitrogen（P0.05）. |
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| Keywords: | organic carbon content vertical distribution Citrus reticulata Blanco Castanea henryi Phyllostachys heterocycla |
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