Effects of nitrogen addition on soil organic carbon mineralization after maize stalk addition
文献类型：期刊论文
| 作者 | Wang, Hui1; Hu, Guoqing1; Xu, Wenhua2; Boutton, Thomas W.3; Zhuge, Yuping1; Bai, Edith2,4 |
| 刊名 | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 89页码:33-38 |
| 关键词 | Priming effect Carbon sequestration Nitrogen addition Litter decomposition Nitrogen form |
| ISSN号 | 1164-5563 |
| DOI | 10.1016/j.ejsobi.2018.10.002 |
| 英文摘要 | Nitrogen (N) fertilization or increasing N deposition could significantly increase soil N availability, which could alter soil carbon cycling. Our understanding of the effects of N addition on the priming effect (PE) of carbon inputs on soil organic matter (SOM) mineralization (i.e. change of SOM mineralization after the addition of exogenous substrate) is still limited. Here we compared the effects of ammonium nitrate (NH4NO3) and urea (CO(NH2)(2)) on the PE of maize stalk on SOM mineralization. Results showed that during the 209-d incubation, maize stalk addition induced a SOM priming of 135 mg C kg(-1) soil. Both NH4NO3 and urea addition significantly decreased SOM mineralization when there was no maize stalk addition. Compared to control, treatments of NH4NO3 + stalk and urea + stalk increased the 209-d cumulative SOM mineralization by 8.4% and 30.2%, respectively. The 55.0% lower positive PE under NH4NO3 + stalk treatment than stalk alone treatment hinted that N-mining mechanism prevailed under low N availability, while the 63.0% higher cumulative PE under urea + stalk treatment might be attributed to the function of co-metabolism mechanism. Nevertheless, net C sequestration (stalk-C incorporation into the soil minus primed soil C) among different stalk + N treatments was not statistically different because new C incorporation under urea + stalk treatment tended to be higher than that under NH4NO3 + stalk treatment. Our results suggested that NH4NO3 and urea had contrasting effects on SOM priming when maize stalk was added, which might complicate the selection of N fertilizers during straw returning practice in field conditions. |
| 资助项目 | National Natural Science Foundation of China[41601237] ; National Natural Science Foundation of China[41701257] ; Natural Science Foundation of Shandong Province[ZR2016DQ05] ; China Postdoctoral Science Foundation[2016M602169] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000451499300006 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 源URL | [http://210.72.129.5/handle/321005/123791]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Bai, Edith |
| 作者单位 | 1.Shandong Agr Univ, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Coll Resources & Environmen, Tai An 271018, Shandong, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Forest Ecol & Managemen, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 3.Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX 77843 USA 4.Northeast Normal Univ, Sch Geog Sci, Changchun 130024, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hui,Hu, Guoqing,Xu, Wenhua,et al. Effects of nitrogen addition on soil organic carbon mineralization after maize stalk addition[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2018,89:33-38. |
| APA | Wang, Hui,Hu, Guoqing,Xu, Wenhua,Boutton, Thomas W.,Zhuge, Yuping,&Bai, Edith.(2018).Effects of nitrogen addition on soil organic carbon mineralization after maize stalk addition.EUROPEAN JOURNAL OF SOIL BIOLOGY,89,33-38. |
| MLA | Wang, Hui,et al."Effects of nitrogen addition on soil organic carbon mineralization after maize stalk addition".EUROPEAN JOURNAL OF SOIL BIOLOGY 89(2018):33-38. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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