| 冬小麦田间蒸发蒸腾与棵间蒸发规律研究 |
| |
| 引用本文： | 梁文清,蔡焕杰,王健.冬小麦田间蒸发蒸腾与棵间蒸发规律研究[J].灌溉排水学报,2011,30(6):93-96. |
| |
| 作者姓名： | 梁文清 蔡焕杰 王健 |
| |
| 作者单位： | 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌,712100 |
| |
| 基金项目： | 国家自然科学基金重点项目 |
| |
| 摘 要： | 利用2010-2011年的大型称量式蒸渗仪和小型棵问蒸发器的实测资料，研究了冬小麦田间蒸散和棵闽蒸发变化规律。结果表明，冬小麦总蒸发蒸腾量为360．974mm，抽穗-灌浆期蒸发蒸腾量达到最大为84．706mm，日均蒸发蒸腾量在全生育期内呈双峰变化，2个峰值处于播种-分蘖、抽穗-灌浆期；冬小麦的棵间蒸发量达到了115．8...
|
| 关 键 词： | 大型称量式蒸渗仪 小型棵间蒸发器 蒸发蒸腾量 植株蒸腾量 棵间蒸发量 |
Research of Evapotranspiration and Evaporation for Winter Wheat |
| |
| Abstract: | With the data of the Large weighing lysimeter and Micro-lysimeter between the year 2010 to 2011,this article study the variation of the winter wheat evapotranspiration and evaporation.The results show that the total evapotranspiration of winter wheat in 2010-2011 is 360.974 mm.The evapotranspiration reached maximum 84.706 mm in heading-filling stage.Chart of the average daily evapotranspiration of winter wheat in terms of growing periods which exerts the feature with two summits in sowing-tillering and heading-filling stage.The evaporation of winter wheat amounted to 115.808 mm,which accounted to 32.8% in total evapotranspiration,so about 1/3 of the total winter wheat consumptive use lost in the form of evaporation throughout the growing season.Daily average soil evaporation was the highest at sowing to tillering stage compared to other time.Diurnal variation of soil evaporation was similar to diurnal variation of field evapotranspiration,and the peak occurred at between 12:00 and 14:00. |
| |
| Keywords: | large weighing lysimeter micro-lysimeter evapotranspiration transpiration evaporation |
| 本文献已被 万方数据 等数据库收录！ |
