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| DOI | 10.1016/j.scitotenv.2024.171171 |
| Interactive effects of grassland utilization and climatic factors govern the plant diversity-soil C relationship in steppe of North China | |
| 发表日期 | 2024 |
| ISSN | 0048-9697 |
| EISSN | 1879-1026 |
| 起始页码 | 922 |
| 卷号 | 922 |
| 英文摘要 | The relationship between plant diversity and the ecosystem carbon pool is important for understanding the role of biodiversity in regulating ecosystem functions. However, it is not clear how the relationship between plant diversity and soil carbon content changes under different grassland use patterns. In a 3-year study from 2013 to 2015, we investigated plant diversity and soil total carbon (TC) content of grasslands in northern China under different grassland utilization methods (grazing, mowing, and enclosure) and climatic conditions. ShannonWiener and Species richness index of grassland were significantly decreased by grazing and mowing. Plant diversity was positively correlated with annual precipitation (AP) and negatively correlated with annual mean temperature (AMT). AP was the primary regulator of plant diversity. Grazing and mowing decreased TC levels in grasslands compared with enclosures, especially in topsoil (0-20 cm). The average TC content was decreased by 58 % and 36 % in the 0-10 cm soil layer, while it was decreased by 68 % and 39 % in 10-20 cm soil layer. TC was positively correlated with AP and negatively correlated with AMT. Principal component analysis (PCA) showed that plant diversity was positively correlated with soil TC, and the correlation decreased with an increase in the soil depth. Overall, this study provides a theoretical basis for predicting soil carbon storage in grasslands under human disturbances and climate change impacts. |
| 英文关键词 | Climatic factors, grassland utilization; Plant diversity; Soil carbon; Grazing; Mowing |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:001211006100001 |
| 来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298364 |
| 作者单位 | Lanzhou University; Northeast Normal University - China; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Inner Mongolia University |
| 推荐引用方式 GB/T 7714 | . Interactive effects of grassland utilization and climatic factors govern the plant diversity-soil C relationship in steppe of North China[J],2024,922. |
| APA | (2024).Interactive effects of grassland utilization and climatic factors govern the plant diversity-soil C relationship in steppe of North China.SCIENCE OF THE TOTAL ENVIRONMENT,922. |
| MLA | "Interactive effects of grassland utilization and climatic factors govern the plant diversity-soil C relationship in steppe of North China".SCIENCE OF THE TOTAL ENVIRONMENT 922(2024). |
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