Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses
文献类型：SCI/SSCI论文
| 作者 | Wang Y. Q.; Shao, M. A.; Zhang, C. C.; Liu, Z. P.; Zou, J. L.; Xiao, J. F. |
| 发表日期 | 2015 |
| 关键词 | Forest Cropland Plant root Carbon management Loess Plateau loess plateau vertical-distribution green program sequestration storage dynamics nitrogen ecosystems system region |
| 英文摘要 | We collected soil samples from depths between 0 and 12-21 m at 33 sites across the Chinese Loess Plateau in order to determine the vertical distributions and storage of soil organic carbon (SOC), as well as to test the hypothesis that SOC in deep soils (below 5 m) is greater under forest than under permanent cropland. The overall distributions of SOC within a profile were divided into three sub-layers: 0-2, 2-14, and 14-21 m, with significantly different (P < 0.01) mean SOC values of 3.28 +/- 2.39, 2.07 +/- 0.79, and 1.56 +/- 0.57 g kg(-1), respectively. In the deep soil layer (5-21 m), SOC storage was significantly higher (P < 0.01) under forest (47 +/- 0.43 kg m(-2)) than under cropland (38 +/- 0.44 kg m(-2)). Within the rooting zone, the factors affecting SOC variation were root length, pH and clay content; below the rooting zone, the factors were soil water content, pH and clay content. Land use and rooting characteristics significantly affected the magnitude and vertical distribution of SOC within both shallow and deep layers. Therefore, changes in land use can alter SOC storage in deep soils, which can have important consequences for global climate change. (C)2015 Elsevier B.V. All rights reserved. |
| 出处 | Ecological Engineering |
| 卷 | 82 |
| 页 | 361-367 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0925-8574 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38930]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Wang Y. Q.,Shao, M. A.,Zhang, C. C.,et al. Soil organic carbon in deep profiles under Chinese continental monsoon climate and its relations with land uses. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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