黄淮烟区以烟为主的田园综合体农田氮足迹解析

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关键词烤烟种植；生命周期评价;氮足迹中图分类号 S572 文献标识码A文章编号 0517-6611（2025）13-0149-05doi： 10.3969/j .issn.0517-6611.2025.13.028开放科学（资源服务）标识码（OSID）：

NitrogenFootprintAnalysisofRuralComplexFarmlandDominatedbyTobaccoinHuang-HuaiTobaccoRegion

Minisuyl Agcutureanduralasngaoandongo;andong eangacoo，d.，eang，anong） AbstractWihtepastoralomplexasthasiceseachunit，thangesoffrandostemnitrogenfoprntbeforeandfeoacc plantingerealddgssdreiasisdot inthefarlandeaituedtobaoainplaigsuctureInhisudystoralompleinadogProvelect ed.Since2O19，theplantingstructureofthispastoralcomplexhasbeenadjustedandtransforedintoatobacobasedpastoralcomplex. Throughquestioaieeyoaatealiputgriclturalanageentmeasues，eldndothrfctosurgteantingrsf difrentlcalplatigsstestelifeeetdsusdtoalculatetrgenfotandisompsiifladprouction 2018and2020.Theeconomicbenefitperunitareain2020was41548yuan/m，3.2tmesthatof2018.Thenitrogeninputperunitarean 2020 was 22.28‰ ，which was 22% lower than that in 2O18.The loss of active nitrogen per unit area was 8.04t（hm2⋅a） ，decreased by 6% compared with 2O18.Nitrogen footprint per unit area and nitrogen footprint per unit yield decreased by 29% and 18% ，and nitrogen economic efficiency increased by 349% . The nitrogen input per unit area of flue-cured tobacco planting system was 3.68V（hm2⋅a） ， （20 17% of the regional average，and the active nitrogen loss was 1.67V（hm2⋅a） ， 21% of the regional average.When flue-cured tobacco was used asthemaincoppingsteirogeniputreasedactivenirogenlssdcreasedandirogefointdreasediiicatly.

Key wordsTobacco planting;Life cycle assessment;Nitrogen footprint

农业生产是重要的温室气体排放源，农业活动引起的温室气体排放占全球排放总量的 10%～12%[1-2] 。（剩余9791字）