| 麦田间作大蒜减排温室气体：兼顾经济环境效益 |
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| 引用本文：陈素云，吴洪生，李 季，姚东良，赵 月，陈凯凯.麦田间作大蒜减排温室气体：兼顾经济环境效益[J].西北农业学报,2017,26(6):832~839 |
| DOI:10.7606/j.issn.1004-1389.2017.06.005 |
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| 基金项目:环保部国家水体污染控制与治理科技重大专项(2015ZX07204-002)。 |
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| 中文摘要: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。 |
| 中文关键词:冬小麦 大蒜 CH4 经济效益 环境效益 |
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| Effects of Winter Wheat Intercropping with Garlic on Wheat Growth,CH4 Flux Emissions and Evaluation of Economic and Environmental Benefits |
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| Abstract:To cope with climate change,reducing agricultural greenhouse gases emission,developing ecological agriculture and increasing the land utilization rate,a single factor plot experiment was conducted to study the impact of intercropping garlic in winter wheat field on soil methane (CH4) flux in the agro-meteorological station of Nanjing University of Informationand Science Technology from 2013 to 2014,and its economic and environmental effects were assessed.The results showed that in the treatment of intercropping galic,the fresh mass ,panicle mass and 1 000-grain mass of winter wheat can be improved by 134.67%,2.20%,3.51%,respectively; compared with monoculture of winter wheat,the input-output ratio in the treatment of intercropping garlic was increased from 1∶9.80 to 1∶16.70,for the same inputs,the outputs may be increased by 70.41% compared to the control; the CH4 flux emission from plot treated with garlic was decreased by 38.35% and 16.59% compared with the monoculture of winter wheat in the heading and grain filling stage of wheat,respectively. The accumulative soil CH4 flux emission in the treatment of garlic was decreased by 53.45% in the whole growing season of winter wheat. The intercropping of garlic and winter wheat can not only mitigate environmental pollution,but also increase land utilization efficiency and economic profits,which is of great significance to reduce the flux of green-house gases in the soil and consequently develop sustainable agriculture. |
| keywords:Winter wheat Allium sativum CH4 Economic benefits Environmental benefits |
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