Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates
文献类型：期刊论文
| 作者 | Wu Qing-Biao; Wang Xiao-Ke; Ouyang Zhi-Yun |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2009-04 |
| 卷号 | 19期号:2页码:258-264 |
| 关键词 | carbon fractions microaggregates soil mineral surface area soil organic carbon vegetation |
| 中文摘要 | Soil organic carbon (SOC) can act as a sink or source of atmospheric carbon dioxide; therefore, it is important to understand the amount and composition of SOC in terrestrial ecosystems, the spatial variation in SOC, and the underlying mechanisms that stabilize SOC. In this study, density fractionation and acid hydrolysis were used to assess the spatial variation in SOC, the heavy fraction of organic carbon (HFOC), and the resistant organic carbon (ROC) in soils of the southern Hulun Buir region, northeastern China, and to identify the major factors that contribute to this variation. The results showed that as the contents of clay and silt particles (0-50 mu m) increased, both methylene blue (MB) adsorption by soil minerals and microaggregate contents increased in the 0-20 and 20-40 cm soil layers (P < 0.05). Although varying with vegetation types, SOC, HFOC, and ROC contents increased significantly with the content of clay and silt particles, MB adsorption by soil minerals, and microaggregate content (P < 0.05), suggesting that soil texture, the MB adsorption by soil minerals, and microaggregate abundance might be important factors influencing the spatial heterogeneity of carbon contents in soils of the southern Hulun Buir region. |
| WOS记录号 | WOS:000264736200014 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21413]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wu Qing-Biao,Wang Xiao-Ke,Ouyang Zhi-Yun. Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates[J]. PEDOSPHERE,2009,19(2):258-264. |
| APA | Wu Qing-Biao,Wang Xiao-Ke,&Ouyang Zhi-Yun.(2009).Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates.PEDOSPHERE,19(2),258-264. |
| MLA | Wu Qing-Biao,et al."Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates".PEDOSPHERE 19.2(2009):258-264. |
入库方式： OAI收割
来源：生态环境研究中心
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