Article(id=1305135969594794891, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305135949499884251, articleNumber=null, orderNo=null, doi=10.7606/j.issn.1009-1041.2026.06.13, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1765814400000, receivedDateStr=2025-12-16, revisedDate=1769443200000, revisedDateStr=2026-01-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1789098263405, onlineDateStr=2026-09-11, pubDate=1781452800000, pubDateStr=2026-06-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789098263405, onlineIssueDateStr=2026-09-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789098263405, creator=13701087609, updateTime=1789098263405, updator=13701087609, issue=Issue{id=1305135949499884251, tenantId=1146029695717560320, journalId=1303687221787852879, year='2026', volume='46', issue='6', pageStart='F2', pageEnd='850', issueExtLink='null', onlineDate='null', pubDate='1781452800000', pubDateStr='2026-06-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789098258614, creator='13701087609', updateTime=1789103086332, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305156198454547374, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305135949499884251, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305156198454547375, tenantId=1146029695717560320, journalId=1303687221787852879, issueId=1305135949499884251, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=828, endPage=837, ext={EN=ArticleExt(id=1305135971394151308, articleId=1305135969594794891, tenantId=1146029695717560320, journalId=1303687221787852879, language=EN, title=Analysis of the Interannual Variation Characteristics and Composition of Carbon and Nitrogen Footprints of Wheat Production System in Jiangsu Province from 2014 to 2023, columnId=1305133133406433355, journalTitle=Journal of Triticeae Crops, columnName=Physiology, Ecology and Cultivation, runingTitle=null, highlight=null, articleAbstract=

To provide a basis for formulating carbon and nitrogen reduction measures for wheat production in Jiangsu Province, a carbon and nitrogen accounting boundary for Jiangsu's wheat production system was constructed, analyzing the resource input characteristics and carbon and nitrogen footprint trends from 2014 to 2023, based on the life cycle assessment method. The results indicate that over the decade, the cost per unit area and per unit yield in Jiangsu's wheat production system showed an upward trend. Agricultural input costs were primarily attributed to fertilizers (33.38%-40.06%) and machinery (30.21%-35.72%). The per unit area carbon footprint and per unit yield carbon footprint of wheat were 2.52 t·hm^-2 and 0.46 t·t^-1, respectively, while the per unit area nitrogen footprint and per unit yield nitrogen footprint were 103.96 kg·hm^-2 and 18.89 g·kg^-1. The carbon footprint generally exhibited an increasing trend over time, with an annual growth rate of 2.23%, while active nitrogen emissions showed little variation. In the carbon footprint composition, fertilization and machinery (irrigation and diesel) were the primary sources of wheat carbon emissions, contributing 63.70% and 22.38% to total emissions, respectively. Ammonia (NH₃) volatilization was the main pathway for active nitrogen emissions in wheat production. The per unit yield carbon and nitrogen footprints were significantly negatively correlated with wheat yield. Overall, reducing carbon emissions in wheat fertilization and mechanical operations, along with increasing straw carbon sequestration, are key strategies for lowering wheat production carbon and nitrogen footprints. Measures such as promoting organic fertilizer substitution for chemical fertilizers, integrated water and fertilizer management, straw return, and the use of lightweight agricultural machinery can enhance fertilizer efficiency and mechanical productivity, thereby reducing carbon and nitrogen emissions in wheat production and achieving green, low-carbon, and sustainable development.

, authors=Hui LI, Wenjing DU, Mai LU, Qingqing YANG, Lingyu ZHANG, Wenna ZHAO, Xinjun DAI, authorsList=Hui LI, Wenjing DU, Mai LU, Qingqing YANG, Lingyu ZHANG, Wenna ZHAO, Xinjun DAI, authorCompany=null, correspAuthors=Xinjun DAI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1305135971691946893, articleId=1305135969594794891, tenantId=1146029695717560320, journalId=1303687221787852879, language=CN, title=2014—2023年江苏省小麦生产体系碳氮足迹年际变化特征及构成分析, columnId=1305133133590982733, journalTitle=麦类作物学报, columnName=生理、生态与栽培, runingTitle=null, highlight=null, articleAbstract=

为给江苏省制定小麦生产过程中碳氮减排措施提供依据，基于生命周期评价法，构建江苏省小麦生产体系碳氮核算边界，分析了2014—2023年江苏省小麦生产体系资源投入特征和碳氮足迹演变趋势。结果表明，2014-2023年间江苏省小麦生产体系单位面积和单位产量成本呈上升趋势。农资投入成本主要来源于肥料（33.38%~40.06%）和机械（30.21%~35.72%）。小麦单位面积碳足迹和单位产量碳足迹分别为2.52 t·hm^-2和0.46 t·t^-1，单位面积氮足迹和单位产量氮足迹分别为103.96 kg·hm^-2和18.89 g·kg^-1。随时间的推进，碳足迹总体呈增长趋势，年均增幅为2.23%，活性氮排放量变化幅度较小。在碳足迹构成中，施肥和机械（灌溉和柴油）环节是小麦碳足迹的主要来源，对碳排放的贡献率分别为63.70%和22.38%，NH₃挥发是小麦活性氮排放的主要路径。单位产量碳氮足迹均与小麦单产呈显著负相关。综合来看，减少小麦施肥和机械作业环节碳排放、增加秸秆碳固定是降低小麦生产碳氮足迹的重要途径，可以推广有机肥替代化肥、水肥一体化、秸秆还田及运用轻便型农用机械等方式提高肥料利用率和机械生产效率，降低小麦生产碳氮排放，实现绿色低碳可持续发展。

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