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最新夏玉米农田土壤二氧化碳排放通量研究.pdf

发布：2018-08-13约7.59万字共56页下载文档
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Abstract This discussed thesumlner paper maize field usi t11e ecosystems static by ng chamber ondifferent sampling soilmoisture and different 2 consecutiveof yearsobservationand researchonthe e111issions gas i11different gro州11 for stages，usinggas chromatograplly sanlple t11e anaiysis，we。btained gas emissions rulesofcorn field results greenhouse．Theareas foilows： (1)Seasonaloftile change summermaizesoil emission C02 increases and20es tothe 1naxlnlunl withinabout it sixtydays．Then drops．Low nitrogen (N150 with mg’kg。1)dealsummercornsoil C02 emissionsamaximumof513．7 by rag／mz11；hlgh nitrogen concentration(N300withsLlllllner nag
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