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中国农学通报 ›› 2015, Vol. 31 ›› Issue (36): 188-193.doi: 10.11924/j.issn.1000-6850.casb15070015

所属专题: 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

长江中下游地区不同避涝作物种植模式对农田温室气体排放的影响

齐龙昌1,李友强2,车 钊1,曹 刚1,王 腾1,宋 贺1,董召荣1   

  1. (1安徽农业大学农学院,合肥230036;2合肥丰乐种业股份有限公司,合肥 230031)
  • 收稿日期:2015-07-02 修回日期:2015-08-02 接受日期:2015-08-25 出版日期:2015-12-30 发布日期:2015-12-30
  • 通讯作者: 董召荣
  • 基金资助:
    农业部公益性行业(农业)科研专项“主要农作物涝渍灾害防控关键技术研究与示范”(201203032)。

Effects of Cropping Patterns of Different Flood-avoiding Plants on Greenhouse Gas Emission in the Downstream of Yangtze River

Qi Longchang1, Li Youqiang2, Che Zhao1, Cao Gang1, Wang Teng1, Song He1, Dong Zhaorong1   

  1. (1Agricultual College, Anhui Agricultural University, Hefei 230036; 2Hefei Fengle Seed Co., Ltd, Hefei 230031)
  • Received:2015-07-02 Revised:2015-08-02 Accepted:2015-08-25 Online:2015-12-30 Published:2015-12-30

摘要: 通过田间原位试验,研究长江中下游地区不同避涝作物种植模式对农田温室气体排放的影响,为该地区低碳作物种植模式的选择提供依据。利用静态箱法研究水稻-小麦(WRR)、黄心乌-茭白(WZR)、黄心乌-毛豆-荸荠(WECR)、水芹-芹芽-水稻(CCRR)和莲藕(LR)种植模式下农田的N2O、CO2和CH4等温室气体的排放规律。结果表明:N2O、CO2和CH4的排放具有明显的季节性,CO2排放呈现夏季>秋季>春季>冬季,CH4和N2O排放呈现夏季>秋季;WECR、WRR和CCRR种植模式土壤CO2排放量差异不显著,但都显著高于WZR,LR模式;WRR、CCRR和LR种植模式土壤N2O排放量极显著高于WZR和WECR模式;LR极显著高于CCRR种植模式土壤CH4排放量,而WZR、WECR和WRR极显著低于LR和CCRR。不同种植模式综合温室效应大小WRR>CCRR>WECR>LR>WZR,可见黄心乌-茭白模式综合温室效应最低,是长江中下游易涝区域低碳农业的较佳生产模式。

关键词: 亚洲百合, 亚洲百合, 花粉萌发, 柱头可授性, 杂交亲和性, 种内杂交, 坐果率

Abstract: In this study, the effect of cropping patterns of different flood-avoiding plants on greenhouse gas emission in the downstream of Yangtze River was studied and the basis for selecting regional low-carbon agriculture crop patterns was provided. The emission rules of CO2, CH4 and N2O under the cropping patterns of wheat-rice (WRR), yellow heart cabbage-water bamboo (WZR), yellow heart cabbage-soybean-water chestnuts (WECR), cress-celery bud-rice (CCRR) and lotus root (LR) were analyzed by the method of closed chamber technique. The results showed that the emission of CO2 followed the order of summer>autumn>spring>winter, and CH4 and N2O followed the order of summer>autumn; CO2 emissions were not significantly different among the cropping patterns of WECR, WRR and CCRR, but were all higher than that of WZR and LR; N2O emissions of WRR, CCRR and LR were significantly higher than that of WZR and WECR; CH4 emission of LR was significantly higher than that of CCRR, but CH4 emissions of WZR, WECR and WRR were significantly lower than that of LR and CCRR. The order of greenhouse effect was WRR>CCRR>WECR>LR>WZR, which suggested that the cropping pattern of yellow heart cabbage-water bamboo (WZR) had the lowest greenhouse effect and it was the better production pattern in the Yangtze River Flooding Area.

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