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| 庐山不同海拔森林土壤有机碳密度及分布特征 | |
| 作者姓名： | Du YX Wu CJ Zhou SX Huang L Han SM Xu XF Ding Y |
| 作者单位： | 1. 江西省-中国科学院庐山植物园,江西庐山,332900 2. 九江市林业局,江西九江,332000 3. 南昌航空大学环境与化学工程学院,南昌,330063 |
| 基金项目： | 江西省自然科学基金项目(2009GZN0084)资助 |
| 摘 要： | 为阐明地处中亚热带北部的庐山森林土壤有机碳沿海拔梯度的分布特征,2010年7—8月,分别在庐山的南、北坡按200 m的高差选择6个和5个不同海拔采样点,分层(0~10、10~20、20~30、30~40和>40 cm)采集土样,测定土壤容重、有机碳含量及有机碳密度.结果表明:海拔和坡向显著影响森林土壤有机碳密度.在北坡,随海拔升高,土壤有机碳呈逐渐增加趋势,土壤有机碳含量与土壤容重和pH值呈显著负相关关系;在南坡则没有明显规律.随土层加深,土壤有机碳逐渐下降.北坡和南坡土壤有机碳密度分别为7.07~10.34 kg.m-2和6.03~12.89 kg.m-2.南坡土壤有机碳密度随海拔梯度和土层深度变化的变异性较大,原始植被的破坏和人工林的建立可能是影响土壤有机碳空间分布的重要因素之一. |
| 关 键 词： | 庐山 海拔梯度 森林土壤 有机碳密度 |
Forest soil organic carbon density and its distribution characteristics along an altitudinal gradient in Lushan Mountains of China |
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| Du YX,Wu CJ,Zhou SX,Huang L,Han SM,Xu XF,Ding Y.Forest soil organic carbon density and its distribution characteristics along an altitudinal gradient in Lushan Mountains of China[J].Chinese Journal of Applied Ecology,2011,22(7):1675-1681. | |
| Authors: | Du You-xin Wu Cong-jian Zhou Sai-xia Huang Liang Han Shi-ming Xu Xue-feng Ding Yuan |
| Institution: | DU You-xin1,WU Cong-jian3,ZHOU Sai-xia1,HUANG Liang3,HAN Shi-ming1,XU Xue-feng1,DING Yuan2(1Lushan Botanical Garden,Jiangxi Province & Chinese Academy of Sciences,Lushan 332900,Jiangxi,China,2College of Envioronmental Chemistry Engineering,Nanchang Hang Kong University,Nanchang 330063,3Jiujiang Forestry Bureau,Jiujiang 332000,China) |
| Abstract: | To understand the spatial distribution characteristics of organic carbon in northern subtropical forest soils along an altitudinal gradient in Lushan Mountains of China,six and five sampling plots with a 200-m interval of elevation and covered by different vegetation types were installed on the southern and northern slopes,respectively in July-August in 2010 to collect soil profiles, with the soil thickness,bulk density,organic carbon content,and organic carbon density of 0-10 cm,10-20 cm,20-30 cm,30-40 cm,... |
| Keywords: | Lushan altitudinal gradient forest soil organic carbon density |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ | |