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| DOI | 10.3390/app14052061 |
| Soil Mineral-Associated Organic Carbon and Its Relationship to Clay Minerals across Grassland Transects in China | |
| 发表日期 | 2024 |
| EISSN | 2076-3417 |
| 起始页码 | 14 |
| 结束页码 | 5 |
| 卷号 | 14期号:5 |
| 英文摘要 | The purpose of this study was to determine the mineral-associated organic carbon (MOC) and its relationship to clay minerals under different temperatures and precipitation. We selected three typical grassland transects in China: Titanium Plate (TP), Mongolian Plate (MP), and Loess Plate (LP) with natural temperature gradients. Along the transect, there is a gradient in the precipitation between the various types of grasslands. The surface soil (0-10 cm) was sampled to determine the MOC. Clay minerals were charactered by X-ray diffraction (XRD). According to the findings, the MOC content increased with decreasing temperature (5.41-14.89 g/kg). MOC had a positive correlation (r = 0.67) with the amount of clay mineral content. In the large-scale study of transects, precipitation masks the effect of temperature change on the MOC to a certain extent. It indirectly affected the MOC content by affecting the mixed-layer illite/smectite (I/Sme) content, and this effect was strongest at the lowest temperature TP (r = -0.73). Except for precipitation, CaO in the soil can affect soil organic carbon (SOC) stability by influencing the pH and I/Sme. The amount of bacteria increased as a result of I/Sme, and the influence of bacteria on the MOC was surpassed only by the soil pH. Climate and clay mineral composition characteristics affected the MOC to a certain extent. Among them, the effect of precipitation change on the MOC is higher than temperature, but it has little effect on soil with a higher weathering degree and CaO content. |
| 英文关键词 | climate; mineral-associated organic carbon; clay mineralogy; spatial variation; grassland transects |
| 语种 | 英语 |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS记录号 | WOS:001182321000001 |
| 来源期刊 | APPLIED SCIENCES-BASEL
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/301260 |
| 作者单位 | Jilin Agricultural University; Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | . Soil Mineral-Associated Organic Carbon and Its Relationship to Clay Minerals across Grassland Transects in China[J],2024,14(5). |
| APA | (2024).Soil Mineral-Associated Organic Carbon and Its Relationship to Clay Minerals across Grassland Transects in China.APPLIED SCIENCES-BASEL,14(5). |
| MLA | "Soil Mineral-Associated Organic Carbon and Its Relationship to Clay Minerals across Grassland Transects in China".APPLIED SCIENCES-BASEL 14.5(2024). |
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