| 不同麦秸覆盖量对夏玉米田棵间土壤蒸发和地温的影响 |
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| 引用本文： | 张俊鹏,孙景生,刘祖贵,李晓东,刘小飞.不同麦秸覆盖量对夏玉米田棵间土壤蒸发和地温的影响[J].干旱地区农业研究,2009,27(1):95-100. |
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| 作者姓名： | 张俊鹏 孙景生 刘祖贵 李晓东 刘小飞 |
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| 作者单位： | 中国农业科学院农田灌溉研究所,河南,新乡,453003 |
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| 基金项目： | 国家科技支撑项目，国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用微型蒸渗仪(Micro-lysimeter)和曲管地温表观测了不同麦秸覆盖量下夏玉米田的棵间土壤蒸发和土壤温度,试验设置5个处理(秸秆覆盖量分别为0(对照)、1 500、4 500、7 500、10 500 kg/hm2),分析了不同秸秆覆盖量下夏玉米田棵间土壤蒸发和土壤温度的动态变化规律.结果表明,麦秸覆盖夏玉米田有效抑制了棵间土壤蒸发,平抑了地温的变化幅度;夏玉米生育期内,4种覆盖处理(由高覆盖量至低覆盖量)棵间土壤蒸发比对照依次减少了63.51%、60.98%、52.94%、34.07%,0～20 cm的地温平均日变幅比对照分别降低了3.14℃、2.93℃、2.32℃、2.02℃.麦秸覆盖处理的抑蒸稳温效应,促进了夏玉米生长,提高了夏玉米的产量和水分利用效率.
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| 关 键 词： | 秸秆覆盖 夏玉米 土壤蒸发 地温 |
Effects of different straw mulching quantity on soil evaporation and soil temperature in summer corn field |
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| ZHANG Junpeng,SUN Jingsheng,LIU Zugui,LI Xiaodong,LIU Xiaofei.Effects of different straw mulching quantity on soil evaporation and soil temperature in summer corn field[J].Agricultural Research in the Arid Areas,2009,27(1):95-100. |
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| Authors: | ZHANG Junpeng SUN Jingsheng LIU Zugui LI Xiaodong LIU Xiaofei |
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| Institution: | Farmland Irrigation Research Institute;Chinese Academy of Agricultural Sciences;Xinxiang;He'nan 453003;China |
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| Abstract: | Micro-lysimeters and bent stem earth thermometers were used to measure soil evaporation and soil temperature under different straw mulching quantity in summer corn field.Five treatments were established including 0(CK),1 500,4 500,7 500 and 10 500 kg/hm2 of straw mulching quantity respectively.The effects of different straw mulching quantity on soil evaporation and soil temperature in summer corn field were analyzed.The results indicated that straw mulching can restrain soil evaporation effectively and hold... |
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| Keywords: | straw mulching summer corn soil evaporation soil temperature |
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