麦田间作大蒜减排温室气体:兼顾经济环境效益

发布时间：2018-05-17 00:00

本文选题：冬小麦 + 大蒜　；参考：《西北农业学报》2017年06期

【摘要】：为应对气候变化,实现农业减排,发展生态农业,提高土地资源利用率,于2013-2014年在南京信息工程大学农业气象试验站,进行冬小麦-大蒜间作小区温室气体减排试验,研究冬小麦间作大蒜对麦田CH4排放通量的影响,并对其经济与环境效益进行比较分析。结果表明:对冬小麦生长,冬小麦田间作大蒜能分别提高小麦植株鲜质量、穗质量、千粒质量134.67%、2.20%、3.51%;与对照单作小麦处理相比,间作大蒜处理下单位面积农田投入与产出比从1∶9.8提高到1∶16.7,即在相同投入成本的情况下,产出提高70.41%;对小麦间作大蒜处理下,在小麦抽穗期和灌浆期,比对照处理的土壤CH4排放通量分别减少38.35%、16.59%;在小麦整个生长季内,土壤CH4排放通量累计减少了53.45%。研究显示,大蒜-小麦种植模式,不仅可以提高冬小麦的产出,还同时减少土壤CH4的排放,减缓温室效应,具有节能减排、提高经济环境效益双重功能,是发展可持续生态农业的一个重要途径。
[Abstract]:In order to cope with climate change, realize agricultural emission reduction, develop ecological agriculture and improve the utilization of land resources, a greenhouse gas abatement experiment of winter wheat-garlic intercropping plot was carried out in Nanjing Information Engineering University in 2013-2014. The effects of winter wheat intercropping garlic on CH4 emission fluxes in wheat field were studied, and the economic and environmental benefits were compared and analyzed. The results showed that for the growth of winter wheat, garlic cultivation in the field could increase the plant fresh weight, ear weight, thousand grain weight 134.67 and 1000-grain weight 134.67 and 3.51, respectively, compared with the control wheat treatment. The ratio of input to output per unit area of farmland increased from 1: 9.8 to 1: 16.7 under intercropping garlic treatment, that is, under the same input cost, the output increased by 70.41%, and under the treatment of intercropping garlic, the ratio of input to output increased from 1: 9.8 to 1: 16.7.The wheat intercropping garlic treatment increased the yield at heading stage and grain filling stage. Compared with the control treatment, the soil CH4 emission flux decreased by 38.35 and 16.59, and the soil CH4 emission flux decreased by 53.45 in the whole wheat growing season. The research shows that the garlic-wheat planting mode can not only increase the output of winter wheat, but also reduce the emission of CH4 in soil and slow down the Greenhouse Effect, which has the dual functions of saving energy and reducing emissions and improving the economic and environmental benefits. It is an important way to develop sustainable ecological agriculture.
【作者单位】：南京信息工程大学应用与气象学院农业资源与环境系;
【分类号】：X712

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