Soil C : N : P Stoichiometry as Related to Nitrogen Addition in a Meadow Steppe of Northern China
文献类型：期刊论文
| 作者 | Wang, X. G.; Wuyunna; Lu, X. T.; Yang, G. J.; Coombs, C. E. O.; Du, X.; Song, Y. T.; Zhang, F. J.; Huo, G. W.; Han, X. G. |
| 刊名 | EURASIAN SOIL SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 54期号:10页码:1581-1587 |
| 关键词 | biogeochemistry C N P ratio global change nitrogen enrichment soil layer |
| ISSN号 | 1064-2293 |
| DOI | 10.1134/S1064229321100124 |
| 文献子类 | Article |
| 英文摘要 | The concentrations and stoichiometry of soil carbon (C), nitrogen (N), and phosphorus (P) have critical implications for nutrient cycling and ecosystem function. While their high sensitivity to atmospheric N deposition is well known, it remains unclear for the soil depth-dependence of such responses to N deposition. Here, we examined the responses of soil C : N : P stoichiometry at three soil depths in the upper humus horizon (0-5, 5-10, and 10-20 cm) of Haplic Chernozem (Loamic) across a gradient of urea addition rates (0, 2, 10, 20, and 50 g N m(-2) year(-1)) after five years treatments in a hay-harvest meadow steppe of northern China. We found that the effects of increasing N addition rates on the concentrations and stoichiometry of soil C, N and P did not depend on soil depth, though those parameters varied greatly across different soil layers. Across all soil depths, the concentrations of soil C and N increased with increasing N addition rates, but soil P concentration was not affected by N addition. The higher sensitivity of soil N than soil C to N enrichment resulted in decreasing soil C : N ratio across the N addition gradient, especially for the surface soil layer. Soil N : P ratio showed a positive response to the increases of N addition rates. The unbalanced responses of soil C, N, and P concentrations to N enrichment, as indicated by the decreases of soil C : N ratio and the increases of soil N : P ratio across the N addition gradient, highlighted the role of N enrichment in decoupling soil nutrient cycling in the temperate steppe. |
| 学科主题 | Soil Science |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1556-195X |
| WOS关键词 | CNP STOICHIOMETRY ; ALPINE GRASSLAND ; CARBON STORAGE ; PHOSPHORUS ; DEPOSITION ; NUTRIENTS ; CYCLES ; ECOSYSTEMS ; LIMITATION ; RESPONSES |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000690707000001 |
| 出版者 | PLEIADES PUBLISHING INC |
| 资助机构 | National Natural Science Foundation of China [31670455, 31971750, 31600363, 31770502, 31700391] ; Natural Science Foundation of Liaoning Province [2020-MZLH-20] ; Fundamental Research Funds for the Central Universities (Program for ecology research group) ; National Scholarship for Overseas Studying from China Scholarship Council (CSC) [201808210005] ; K.C.Wong Education Foundation [GJTD-2019-10] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26352]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.[Wang, X. G. 2.Wuyunna 3.Du, X. 4.Song, Y. T. 5.Zhang, F. J. 6.Huo, G. W.] Dalian Minzu Univ, Coll Environm & Resources, Dalian 116600, Peoples R China 7.[Lu, X. T. 8.[Han, X. G.] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 9.[Coombs, C. E. O.] Univ Sydney, Ctr Carbon Water & Food, Sch Life & Environm Sci, Camden, NSW 2570, Australia 10.Han, X. G.] Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, X. G.,Wuyunna,Lu, X. T.,et al. Soil C : N : P Stoichiometry as Related to Nitrogen Addition in a Meadow Steppe of Northern China[J]. EURASIAN SOIL SCIENCE,2021,54(10):1581-1587. |
| APA | Wang, X. G..,Wuyunna.,Lu, X. T..,Yang, G. J..,Coombs, C. E. O..,...&Han, X. G..(2021).Soil C : N : P Stoichiometry as Related to Nitrogen Addition in a Meadow Steppe of Northern China.EURASIAN SOIL SCIENCE,54(10),1581-1587. |
| MLA | Wang, X. G.,et al."Soil C : N : P Stoichiometry as Related to Nitrogen Addition in a Meadow Steppe of Northern China".EURASIAN SOIL SCIENCE 54.10(2021):1581-1587. |
入库方式： OAI收割
来源：植物研究所
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