Dynamics of soil organic carbon in different-sized aggregates under splash erosion
文献类型：期刊论文
| 作者 | Lin, Junqiu1; Fang, Nufang1,2; Zhang, Yan1; Zeng, Yi1,2; Yang, Daming2; Dai, Wei1; Wang, Ling3; Shi, Zhihua2,3 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2022-03-16 |
| 页码 | 11 |
| 关键词 | Rainfall splash erosion Soil organic carbon Selective migration Aggregate size |
| ISSN号 | 1439-0108 |
| DOI | 10.1007/s11368-022-03189-w |
| 通讯作者 | Fang, Nufang(fnf@ms.iswc.ac.cn) |
| 英文摘要 | Purpose Soil erosion drastically perturbs the global carbon cycle, and splash erosion is the first critical stage of soil erosion by water. Thus, studying the soil organic carbon (SOC) dynamic caused by splash erosion is essential. Methods Simulated rainfall splash experiments were conducted on three cultivated soils with different SOC contents (black soil, purple soil, and red soil) to investigate the dynamics of SOC related to splash erosion, and the splash distance was 0-5, 5-10, 10-17, 17-28, 28-40 cm, respectively. Results SOC was unevenly distributed and enriched in different-sized aggregates. The enrichment ratio of SOC (EROC) was basically greater than 1 and increased as the splash distance increased. Moreover, the variation of EROC differed from that in the aggregate enrichment ratio (ERA), and the EROC in large macroaggregates (> 0.5 mm) decreased with increasing ERA. The weight proportion of SOC mobilization with different-sized aggregates was consistent with the mass percentage of aggregates. Specifically, there was a significant positive exponential relationship between SOC mobilization and the aggregate mass of the greatest proportion, indicating that the mobilization of SOC was mainly affected by the aggregate mass of the greatest proportion. Conclusions Our findings indicated that SOC migration can be realized by aggregates transport under splash erosion, indicating that improving soil structure will help to reduce SOC migration and even loss. |
| WOS关键词 | SEDIMENT TRANSPORT ; INTERRILL EROSION ; ENRICHMENT RATIO ; WATER EROSION ; NUTRIENT LOSS ; RAINFALL ; DETACHMENT ; BREAKDOWN ; NITROGEN ; RUNOFF |
| 资助项目 | National Natural Science Foundation of China[41930755] ; National Natural Science Foundation of China[42177335] ; Chinese Universities Scientific Fund[2452020012] ; CAS Youth Scholar of West China Program[XAB2018A03] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000769828600001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of China ; Chinese Universities Scientific Fund ; CAS Youth Scholar of West China Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/172859]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fang, Nufang |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China 3.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Junqiu,Fang, Nufang,Zhang, Yan,et al. Dynamics of soil organic carbon in different-sized aggregates under splash erosion[J]. JOURNAL OF SOILS AND SEDIMENTS,2022:11. |
| APA | Lin, Junqiu.,Fang, Nufang.,Zhang, Yan.,Zeng, Yi.,Yang, Daming.,...&Shi, Zhihua.(2022).Dynamics of soil organic carbon in different-sized aggregates under splash erosion.JOURNAL OF SOILS AND SEDIMENTS,11. |
| MLA | Lin, Junqiu,et al."Dynamics of soil organic carbon in different-sized aggregates under splash erosion".JOURNAL OF SOILS AND SEDIMENTS (2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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