| 麦田开放式昼夜不同增温系统的设计及增温效果 |
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| 引用本文： | 田云录,郑建初,张彬,陈金,董文军,杨飞,张卫建.麦田开放式昼夜不同增温系统的设计及增温效果[J].中国农业科学,2010,43(18):3724-3731. |
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| 作者姓名： | 田云录 郑建初 张彬 陈金 董文军 杨飞 张卫建 |
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| 作者单位： | (南京农业大学应用生态研究所); |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，教育部新世纪优秀人才计划项目 |
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| 摘 要： | 【目的】设计旱地开放式增温系统,并从田间温度变化和冬小麦生育期改变等方面来监测系统的增温效果与可靠性。【方法】参考国际已有增温系统,于2007—2009年在江苏南京设计了中国首个麦田开放式增温系统(freeair temperature increase,FATI),进行冬小麦全天、白天和夜间3种增温试验。【结果】2年试验结果表明,该开放式主动增温系统的增温效果明显。3种情景下各增温小区的均匀有效增温面积在4m2以内,其中全天、白天和夜间增温分别使冬小麦全生育期地下5cm的土温平均增加2.2、1.5和1.8℃,地表温度增加2.2、0.9和1℃,冠层温度增加1.5、0.9和1.1℃。3种增温情景下,冬小麦各关键生育期田间温度的日变化及全生育期日平均温度的变化动态与未增温区的基本一致,增温设施能客观地模拟田间实际气温变化特征。尽管该增温系统略微降低了耕层土壤(0—20cm)水分含量,但降幅仅在0.5—2.2个百分点之间,与对照相比不显著。3种增温情景均对冬小麦生长发育产生了显著影响,全天、白天和夜间增温两年平均分别可以使冬小麦从播种至抽穗期缩短14、9.5和11.5d,灌浆成熟期延长3、3和2.5d。【结论】从增温效果及其对冬小麦的生长影响来看,该套系统基本适用于模拟气候变暖下小麦生产力和品质响应与适应的田间试验研究。
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| 关 键 词： | 气候变暖 开放式增温系统 昼夜增温 冬小麦 粮食安全 |
| 收稿时间： | 2010-02-01; |
Design of Free Air Temperature Increasing (FATI) System for Upland with Three Diurnal Warming Scenarios and Their Effects |
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| TIAN Yun-lu,ZHENG Jian-chu,ZHANG Bin,CHEN Jin,DONG Wen-jun,YANG Fei,ZHANG Wei-jian.Design of Free Air Temperature Increasing (FATI) System for Upland with Three Diurnal Warming Scenarios and Their Effects[J].Scientia Agricultura Sinica,2010,43(18):3724-3731. |
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| Authors: | TIAN Yun-lu ZHENG Jian-chu ZHANG Bin CHEN Jin DONG Wen-jun YANG Fei ZHANG Wei-jian |
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| Institution: | TIAN Yun-lu1,ZHENG Jian-chu3,ZHANG Bin1,CHEN Jin1,DONG Wen-jun1,YANG Fei1,ZHANG Wei-jian1,2(1Institute of Applied Ecology,Nanjing Agricultural University,Nanjing 210095,2Key Laboratory of Crop Physiology,Ecology & Production,Ministry of Agriculture/Institute of Crop Science,Chinese Academy of Agricultural Sciences,Beijing 100081,3Institute of Agricultural Resources and Environment,Jiangsu Academy of Agricultural Sciences,Nanjing 210014) |
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| Abstract: | Objective In order to study the responses and adaptation of winter-wheat yield and quality to climate warming at crop system scale in situ,a warming system with free air temperature increasing(FATI) techniques was designed and the warming effects at winter-wheat growing stages were investigated.Method In a field warming experiment,three warming scenarios(AW:all-day warming;DW:day warming;NW:night warming) were conducted during 2007-2009 in Nanjing,Jiangsu,China.Result Two-year results showed that this FATI ... |
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| Keywords: | climate warming free air temperature increased system(FATI) system diurnal warming scenario winter wheat food security |
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