Carbon and Nitrogen Storage in Inner Mongolian Grasslands: Relationships with Climate and Soil Texture
文献类型：SCI/SSCI论文
| 作者 | He N. P. ; Wang R. M. ; Zhang Y. H. ; Chen Q. S. |
| 发表日期 | 2014 |
| 关键词 | mean annual precipitation mean annual temperature native grassland particle-size fraction soil organic matter particle-size fractions organic-matter land-use pools cultivation turnover gradient forests china |
| 英文摘要 | Understanding the spatial variability of soil carbon (C) storage and its relationship with climate and soil texture is critical for developing regional C models and for predicting the potential impact of climate change on soil C storage. On the basis of soil data from a transect across the Inner Mongolian grasslands, we determined the quantitative relationships of C and nitrogen (N) in bulk soil and particle-size fractions (sand, silt, and clay) with climate and soil texture to evaluate the major factors controlling soil C and N storage and to predict the effect of climate changes on soil C and N storage. The contents of C and N in the bulk soil and the different fractions in the 0-20 and 20-40 cm soil layers were positively correlated with the mean annual precipitation (MAP) and negatively correlated with the mean annual temperature (MAT). The responses of C storage in the soil and particle-size fractions to MAP and MAT were more sensitive in the 0-20 cm than in the 20-40 cm soil layer. Although MAP and MAT were both important factors influencing soil C storage, the models that include only MAP could well explain the variation in soil C storage in the Inner Mongolian grasslands. Because of the high correlation between MAP and MAT in the region, the models including MAT did not significantly enhance the model precision. Moreover, the contribution of the fine fraction (silt and clay) to the variation in soil C storage was rather small because of the very low fine fraction content in the Inner Mongolian grasslands. |
| 出处 | Pedosphere |
| 卷 | 24 |
| 期 | 3 |
| 页 | 391-398 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1002-0160 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29846]  |
| 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 | He N. P.,Wang R. M.,Zhang Y. H.,et al. Carbon and Nitrogen Storage in Inner Mongolian Grasslands: Relationships with Climate and Soil Texture. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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