| 覆膜旱作水稻蒸发蒸腾量计算模型研究 |
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| 引用本文： | 彭世彰,李荣超.覆膜旱作水稻蒸发蒸腾量计算模型研究[J].河海大学学报(自然科学版),2001,29(3):51-54. |
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| 作者姓名： | 彭世彰 李荣超 |
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| 作者单位： | 河海大学水利水电工程学院, |
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| 基金项目： | 水利部水利科技重点项目!“水稻全程旱管覆膜节水高产技术研究”内容之一 (SZ982 7) |
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| 摘 要： | 在利用蒸渗仪地覆膜旱作水稻需水量现场试验中，应用时域反射仪TDR和植物冠层图像分析仪CI－100等仪器设备，系统地观测了覆膜旱作水稻各生育阶段的冠层结构及土壤水分等试验数据，鉴于冠层叶面积指数CLAI的动态变化对水稻蒸发蒸腾量的显著影响，提出了覆膜旱作水稻蒸发蒸腾量理论模型的3种计算公式，并用蒸必蒸腾量实测值进行了方差检验，均达到极水平。
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| 关 键 词： | 水稻 覆膜旱作 冠层叶面积指数 蒸发 蒸腾量 |
| 文章编号： | 1000-1980(2001)03-0051-04 |
| 修稿时间： | 2000年5月31日 |
Calculation Models of Rice Evapotranspiration in Plastic Film Mulched Dryland |
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| PENG Shi-zhang,LI Rong-chao.Calculation Models of Rice Evapotranspiration in Plastic Film Mulched Dryland[J].Journal of Hohai University (Natural Sciences ),2001,29(3):51-54. |
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| Authors: | PENG Shi-zhang LI Rong-chao |
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| Abstract: | On the basis of field experiment of water requirement of rice in plastic film mulched dryland (RPFMD) with lysimeters, by use of Time Domain Reflectometry TDR and Digital Plant Canopy Imager CI 100, soil water contents and canopy structures of RPFMD in different growth stages are systemically measured. Owing to the significant effects of the development of canopy leaf area index CLAI on rice evapotranspiration, 3 calculation formulae are proposed of the theoretical model of evapotranspiration of RPFMD,and the formulae are verified by measured data.The results indicate that F tests reach significant levels,and that the formulas are accurate. |
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| Keywords: | rice plastic film mulched dryland canopy leaf area index evapotranspiration model |
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