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| The response of soil respiration to different N compounds addition in a saline-alkaline grassland of northern China | |
| Diao, Huajie1,2,3; Chen, Xiaopeng2,3; Wang, Ge2,3; Ning, Qiushi1; Hu, Shuya1; Sun, Wei4; Dong, Kuanhu2,3; Wang, Changhui1,2,3 | |
| 2022 | |
| Source Publication | JOURNAL OF PLANT ECOLOGY
 |
| ISSN | 1752-9921 |
| Volume | 15Issue:5Pages:897-910 |
| Abstract | The increase in atmospheric nitrogen (N) deposition has profound effects on soil respiration (SR). However, the responses of SR to the addition of different N compounds, particularly in saline-alkaline grasslands remain unclear. A 3-year controlled field experiment was conducted to investigate the responses of SR to different N compounds (NH4NO3, (NH4)(2)SO4 and NH4HCO3) during the growing seasons in a saline-alkaline grassland located in the agro-pastoral ecotone of northern China. Our results demonstrated that SR showed a bimodal pattern and a significant interannual difference that was regulated by air or soil temperature and precipitation. Nitrogen addition had a significant effect on SR, and the effect of N addition on SR varied yearly, which was related to seasonal precipitation. The mean SR across 3 years (2017-2019) was increased by 19.9%, 13.0% and 16.6% with the addition of NH4NO3, (NH4)(2)SO4 and NH4HCO3, respectively. The highest effect of NH4NO3 addition on SR across 3 years was ascribed to the highest aboveground net primary production, belowground net primary production (BNPP) and soil NO3- concentrations. SR (C loss) was significantly increased while plant productivity (C input) did not significantly change under NH4HCO3 addition, indicating a decrease in C sequestration. In addition, BNPP was the main direct factor influencing SR in this saline-alkaline grassland, and soil salinization (e.g. soil base cations and pH) indirectly affected SR through soil microorganisms. Notably, NH4NO3 addition overestimated the response of SR to N addition, and different N compounds should be considered, especially in saline-alkaline grassland. |
| Keyword | nitrogen compounds soil respiration soil microorganism plant biomass saline-alkaline grassland |
| Subject Area | Plant Sciences ; Ecology ; Forestry |
| DOI | 10.1093/jpe/rtac006 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | NITROGEN ADDITION ; MICROBIAL RESPIRATION ; ORGANIC-CARBON ; TERRESTRIAL ECOSYSTEMS ; TEMPERATE GRASSLAND ; DEPOSITION ; COMPONENTS ; FERTILIZATION ; PRODUCTIVITY ; COMMUNITIES |
| WOS Research Area | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS ID | WOS:000852303100003 |
| Publisher | OXFORD UNIV PRESS |
| Subtype | Article |
| Publication Place | OXFORD |
| EISSN | 1752-993X |
| Funding Organization | Chinese National Key Research and Development Program for Basic Research [2017YFA0604802] ; National Natural Science Foundation of China [31770526, 31872406, 31800402] ; Research projects of Shanxi Province's doctoral graduates and postdoctoral researchers working in Shanxi Province [SXBYKY2021052] |
| Corresponding Author Email | dongkuanhu@sxau.edu.cn ; wangch@ibcas.ac.cn |
| OA | hybrid |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/28687 |
| Collection | 植被与环境变化国家重点实验室 |
| Affiliation | 1.Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Shanxi Agr Univ, Shanxi Key Lab Grassland Ecol Protect & Nat Grass, Taigu 030801, Peoples R China 4.Shanxi Agr Univ, Youyu Loess Plateau Grassland Ecosyst Res Stn, Taigu 030801, Peoples R China 5.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Peoples R China |
| Recommended Citation GB/T 7714 | Diao, Huajie,Chen, Xiaopeng,Wang, Ge,et al. The response of soil respiration to different N compounds addition in a saline-alkaline grassland of northern China[J]. JOURNAL OF PLANT ECOLOGY,2022,15(5):897-910. |
| APA | Diao, Huajie.,Chen, Xiaopeng.,Wang, Ge.,Ning, Qiushi.,Hu, Shuya.,...&Wang, Changhui.(2022).The response of soil respiration to different N compounds addition in a saline-alkaline grassland of northern China.JOURNAL OF PLANT ECOLOGY,15(5),897-910. |
| MLA | Diao, Huajie,et al."The response of soil respiration to different N compounds addition in a saline-alkaline grassland of northern China".JOURNAL OF PLANT ECOLOGY 15.5(2022):897-910. |
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| Diao-2022-The respon（4162KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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