Aggregate size distribution and associated carbon and nitrogen in mulched winter wheat and spring corn
文献类型：期刊论文
| 作者 | Fu, Xin1,2; Wang, Jun1; Sainju, Upendra M.3; Liu, Wenzhao1 |
| 刊名 | CANADIAN JOURNAL OF SOIL SCIENCE
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 99期号:4页码:367-379 |
| 关键词 | mulching aggregation soil organic carbon soil total nitrogen dryland crops |
| ISSN号 | 0008-4271 |
| DOI | 10.1139/cjss-2019-0015 |
| 通讯作者 | Sainju, Upendra M.(upendra.sainju@ars.usda.gov) |
| 英文摘要 | y The influence of surface mulching on soil aggregation and associated carbon (C) and nitrogen (N) varies by mulching materials and crop types. The 6 yr effect of straw mulching (SM), plastic film mulching (PM), and no mulching (CK) on soil aggregation and associated C and N concentrations at 0-20 and 20-40 cm soil layers were studied under dryland winter wheat (Triticum aestivum L.) and spring corn (Zea mays L.) in the Loess Plateau of China. Regardless of crop types, aggregate proportion was greater in macroaggregates (2.00-10.00 mm), but lower in microaggregates (<0.50 mm) with mulching than without in both soil layers. The mean weight diameter of aggregates was greater with SM and PM than CK. Compared with CK and PM, SM increased soil organic C (SOC) and total N (STN) concentrations in both macroaggregates and bulk soil at 0-20 cm. Aggregate proportion and soil C and N concentrations at both depths were more pronounced in winter wheat than spring corn. The recovery rates of bulk soil SOC and STN in aggregates varied from 94% to 107%. Straw and plastic film mulching enhanced soil aggregation compared with no mulching. Straw mulching was more effective in increasing SOC and STN concentrations at the surface layer in dryland winter wheat and spring corn. |
| WOS关键词 | SOIL ORGANIC-MATTER ; WATER-USE EFFICIENCY ; DIFFERENT TILLAGE ; FRACTIONS ; ROTATION ; PLATEAU ; STORAGE ; CHINA ; STRAW |
| 资助项目 | National Natural Science Foundation of China[31570440] ; National Natural Science Foundation of China[31270484] ; CAS Light of West China Program ; Outstanding Doctoral Dissertation Cultivation Project of Northwest University[YYB17017] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000500183800002 |
| 出版者 | CANADIAN SCIENCE PUBLISHING |
| 资助机构 | National Natural Science Foundation of China ; CAS Light of West China Program ; Outstanding Doctoral Dissertation Cultivation Project of Northwest University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130074]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Sainju, Upendra M. |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China 3.ARS, USDA, Northern Plains Agr Res Lab, 1500 North Cent Ave, Sidney, MT 59270 USA |
| 推荐引用方式 GB/T 7714 | Fu, Xin,Wang, Jun,Sainju, Upendra M.,et al. Aggregate size distribution and associated carbon and nitrogen in mulched winter wheat and spring corn[J]. CANADIAN JOURNAL OF SOIL SCIENCE,2019,99(4):367-379. |
| APA | Fu, Xin,Wang, Jun,Sainju, Upendra M.,&Liu, Wenzhao.(2019).Aggregate size distribution and associated carbon and nitrogen in mulched winter wheat and spring corn.CANADIAN JOURNAL OF SOIL SCIENCE,99(4),367-379. |
| MLA | Fu, Xin,et al."Aggregate size distribution and associated carbon and nitrogen in mulched winter wheat and spring corn".CANADIAN JOURNAL OF SOIL SCIENCE 99.4(2019):367-379. |
入库方式： OAI收割
来源：地理科学与资源研究所
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