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The response of soil respiration to different N compounds addition in a saline-alkaline grassland of northern China

文献类型：期刊论文

作者Diao, Huajie1,2,3; Chen, Xiaopeng1,2; Wang, Ge1,2; Ning, Qiushi3; Hu, Shuya3; Sun, Wei5; Dong, Kuanhu1,2; Wang, Changhui1,2,3
刊名JOURNAL OF PLANT ECOLOGY
出版日期2022
卷号15期号:5页码:897-910
ISSN号1752-9921
关键词nitrogen compounds soil respiration soil microorganism plant biomass saline-alkaline grassland
DOI10.1093/jpe/rtac006
文献子类Article
英文摘要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.
学科主题Plant Sciences ; Ecology ; Forestry
电子版国际标准刊号1752-993X
出版地OXFORD
WOS关键词NITROGEN ADDITION ; MICROBIAL RESPIRATION ; ORGANIC-CARBON ; TERRESTRIAL ECOSYSTEMS ; TEMPERATE GRASSLAND ; DEPOSITION ; COMPONENTS ; FERTILIZATION ; PRODUCTIVITY ; COMMUNITIES
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000852303100003
资助机构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]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28687]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Shanxi Agr Univ, Shanxi Key Lab Grassland Ecol Protect & Nat Grass, Taigu 030801, Peoples R China
3.Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China
4.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Peoples R China
5.Shanxi Agr Univ, Youyu Loess Plateau Grassland Ecosyst Res Stn, Taigu 030801, Peoples R China
推荐引用方式
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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来源：植物研究所

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