Refining the Factors Affecting N_(2)O Emissions from Upland Soils with and without Nitrogen Fertilizer Application at a Global Scale

作     者：Wenqian JIANG Siqi LI Yong LI Meihui WANG Bo WANG Ji LIU Jianlin SHEN Xunhua ZHENG Wenqian JIANG;Siqi LI;Yong LI;Meihui WANG;Bo WANG;Ji LIU;Jianlin SHEN;Xunhua ZHENG

作者机构：State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric ChemistryInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory for Agro-ecological Processes in Subtropical RegionsInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China Changsha Research Station for Agricultural&Environmental MonitoringChinese Academy of SciencesChangsha 410125China University of Chinese Academy of SciencesBeijing 100049China State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution ComplexShanghai Academy of Environment SciencesShanghai 200233China Institute of Carbon NeutralityQilu ZhongkeJinan 251699China Hubei Province Key Laboratory for Geographical Process Analysis and SimulationCentral China Normal UniversityWuhan 430079China Department of EcohydrologyLeibniz Institute of Freshwater Ecology and Inland FisheriesBerlin 12587Germany Key laboratory of Environment Change and Resources Use in Beibu GulfMinistry of EducationNanning Normal UniversityNanning 530001China Golden Mantis school of ArchitectureSoochow UniversitySuzhou 215123China 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展（英文版）)

年 卷 期：2024年第41卷第9期

页      面：1804-1820页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 0706[理学-大气科学] 090301[农学-土壤学] 

基　　金：financially supported by the National Natural Science Foundation of China (Grant No. 42161144002) the National Key Research and Development Programs of China (Grant No. 2022YFE0209200-03) the Suzhou Agricultural Science, Technology and Innovation Programs of Suzhou Agricultural Department (Grant No. SNG2022011) the special fund of State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex (SEPAir2022080590) 

主　　题：N_(2)O emissions influencing factors nitrogen cycling upland farming systems 

摘      要：Nitrous oxide(N_(2)O)is a long-lived greenhouse gas that mainly originates from agricultural *** and more studies have explored the sources,influencing factors and effective mitigation measures of N_(2)O in recent ***,the hierarchy of factors influencing N_(2)O emissions from agricultural soils at the global scale remains *** this study,we carry out correlation and structural equation modeling analysis on a global N_(2)O emission dataset to explore the hierarchy of influencing factors affecting N_(2)O emissions from the nitrogen(N)and non-N fertilized upland farming systems,in terms of climatic factors,soil properties,and agricultural *** results show that the average N_(2)O emission intensity in the N fertilized soils(17.83 g N ha^(-1)d^(-1))was significantly greater than that in the non-N fertilized soils(5.34 g N ha^(−1) d^(−1))(p0.001).Climate factors and agricultural practices are the most important influencing factors on N_(2)O emission in non-N and N fertilized upland soils,*** different climatic zones,without fertilizer,the primary influence factors on soil N_(2)O emissions are soil physical properties in subtropical monsoon zone,whereas climatic factors are key in the temperate *** fertilizer,the primary influence factors for subtropical monsoon and temperate continental zones are soil physical properties,while agricultural measures are the main factors in the temperate monsoon *** enhanced agricultural practices,such as reduced N fertilizer rate combined with the addition of nitrification and urease inhibitors can potentially mitigate N_(2)O emissions by more than 60%in upland farming systems.