| 温室大棚内作物蒸发蒸腾量计算 |
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| 引用本文： | 陈新明,蔡焕杰,李红星,王健,杜文娟.温室大棚内作物蒸发蒸腾量计算[J].应用生态学报,2007,18(2):317-321. |
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| 作者姓名： | 陈新明 蔡焕杰 李红星 王健 杜文娟 |
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| 作者单位： | 1.西北农林科技大学水利与建筑工程学院， 陕西杨凌 712100；;2.塔里木大学农业工程学院， 新疆阿拉尔 843300 |
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| 基金项目： | 国家自然科学基金;西北农林科技大学校科研和教改项目 |
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| 摘 要： | 以彭曼-蒙特斯（Penman-Monteith）方程为基础，引进作物冠层高度，对方程中与风速有关的空气动力学项进行修正，推导出适合于温室大棚计算作物蒸腾量的简单方法.对推导公式进行理论分析，并应用气象资料给予验证计算.结果表明，修正后的Penman-Monteith计算精确度较高，与实测值较为吻合，相对偏差为4.7％～17.1％，平均相对偏差为11.1％.该公式适于在温室大棚中用于作物蒸腾量的计算.
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| 关 键 词： | 城市植被 生态效益 遥感 GIS 城市生态系统分析(UEA) |
| 文章编号： | 1001-9332(2007)02-0317-05 |
| 收稿时间： | 2006-1-16 |
| 修稿时间： | 2006-01-16 |
Calculation of crop evapotranspiration in greenhouse |
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| CHEN Xin-ming,CAI Huan-jie,LI Hong-xing,WANG Jian,DU Wen-juan.Calculation of crop evapotranspiration in greenhouse[J].Chinese Journal of Applied Ecology,2007,18(2):317-321. |
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| Authors: | CHEN Xin-ming CAI Huan-jie LI Hong-xing WANG Jian DU Wen-juan |
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| Institution: | 1.College of Water Resources and Architecture Engineering, Northwest A&F University, Yangling ;712100, Shannxi, China;2.College of Agricultural Engineering, Tarim University, Alar 843300, Xinjiang, China |
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| Abstract: | Based on Penman-Monteith equation, a simplified formula for calculating the crop evapo- transpiration in greenhouse was deduced by introducing the parameter of crop canopy height and modifying the item of aerodynamics related to wind velocity. The deductive procedure was analyzed theoretically, and the formula was validated with meteorological data. The results showed that the modified Penman-Monteith equation had a higher precision of prediction, with a relative deviation of 4. 7%-17. 1% and 11.1% on average, being suitable to calculate the crop evapotranspiration in greenhouse. |
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| Keywords: | greenhouse evapotranspiration Penman-Monteith equation modification |
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