黃淮煙區(qū)以煙為主的田園綜合體農(nóng)田氮足跡解析

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關(guān)鍵詞烤煙種植；生命周期評(píng)價(jià);氮足跡中圖分類號(hào) S572 文獻(xiàn)標(biāo)識(shí)碼A文章編號(hào) 0517-6611（2025）13-0149-05doi： 10.3969/j .issn.0517-6611.2025.13.028開(kāi)放科學(xué)（資源服務(wù)）標(biāo)識(shí)碼（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

農(nóng)業(yè)生產(chǎn)是重要的溫室氣體排放源，農(nóng)業(yè)活動(dòng)引起的溫室氣體排放占全球排放總量的 10%～12%[1-2] 。（剩余9791字）