改进Hargreaves方法计算拉萨参考作物蒸发蒸腾量

杨永红; 张展羽

改进Hargreaves方法计算拉萨参考作物蒸发蒸腾量

杨永红^1,2,
张展羽¹

1.
河海大学农业工程学院, 江苏, 南京, 210098;
2.
西藏农牧学院, 西藏, 林芝, 860000

基金项目: 西藏自治区科学技术厅中青年自然基金资助项目(10-4);西藏农牧学院青年基金资助项目

详细信息

作者简介:
杨永红(1965- ),男,重庆铜梁人,副教授,博士研究生,主要从事农业水土及节水灌溉方面的研究.E-mail:yyhts-386169880@qq.com.

中图分类号: S161.4
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出版历程
- 收稿日期: 2008-09-06
- 刊出日期: 2009-09-24

Method for calculating Lhasa reference crop evapotranspiration by modifying Hargreaves

YANG Yong-hong^1,2,
ZHANG Zhan-yu¹

1.
College of Agricultural Engineering, Hohai university, Nanjing 210098, China;
2.
Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China

摘要

摘要: 根据拉萨站1955~2006年逐日气象资料,采用标准Penman-Monteith方程和Hargreaves方法对西藏高原区拉萨的参考作物蒸发蒸腾量(ET₀)进行了对比分析研究,计算结果发现在拉萨的春季和雨季采用Hargreaves方法计算的ET₀存在着较大偏差.为了进一步提高Hargreaves方法在该地区的适宜性,引入了平均相对湿度因子,建立改进Hargreaves公式并进行了评价,为拉萨地区准确实用地确定作物需水量和合理的灌溉制度提供了一种简便方法和科学依据.
- 参考作物蒸发蒸腾量 /
- Penman-Monteith方程 /
- 湿度 /
- 数据处理 /
- 改进Hargreaves方法
Abstract: In this article,we analyze comparatively the two results from Penman-Monteith and Hargreaves of Lhasa reference crop evapotranspiration(ET₀) based on the data from Lhasa weather stations during 1955-2006.The calculated results show the Hargreaves method still has a large deviation in Lhasa in spring and rainy seasons.To further enhance the appropriateness of the Hargreaves methods in Lhasa,we establish and evaluate the method of modifying Hargreaves by introducing the humidity factor,it thus provide a simple method and scientific proof for the accurately determining the water demand of cropand the irrigation schedule in Lhasa region.
- reference crop evapotranspiration /
- Penman-Monteith equation /
- moisture /
- data processing /
- modifying Hargreaves method

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参考文献(8)

[1]	苏春宏,陈亚新,徐冰.ET₀计算公式的最新进展与普适性评估[J].水科学进展,2008,19(1):129-136.(SU Chun-hong,CHEN Ya-xin,XU Bing.Recent development and universality evaluation of ET₀ calculation formulas[J].Advances in Water Science,2008,19(1):129-136.(in Chinese))
[2]	王新华,郭美华,徐中民.分别利用Hargreaves和PM公式计算西北干旱区ET₀的比较[J].农业工程学报,2006,22(10):21-25.(WANG Xin-hua,GUO Mei-hua,XU Zhong-min.Comparison of estimating ET₀ in arid-area of northwest China by Hargreaves equation and Penman-Monteith equation[J].Transactions of the CSAE,2006,22(10):21-25.(in Chinese))
[3]	范丽萍,贾忠华,罗纨,等.西安地区Priestley-Taylor和Hargreaves方法应用比较[J].水资源与水工程学报,2007,17(2):21-25.(FAN Li-ping,JIA Zhong-hua,LUO Wan,et al.Comparison with the application of Priestley-Taylor and Hargreaves methods in Xi'an[J].Journal of Water Resources & Water Engineering,2007,17(2):21-25.(in Chinese))
[4]	史晓楠,王全九,王新,等.参考作物腾发量计算方法在新疆地区的适用性研究[J].农业工程学报,2006,22(6):19-23.(SHI Xiao-nan,WANG Quan-jiu,WANG Xin,et al.Adaptability of different reference evapo-transpiration estimation methods in Xinjiang region[J].Transactions of the CSAE,2006,22(6):19-23.(in Chinese))
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文章访问数: 108
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改进Hargreaves方法计算拉萨参考作物蒸发蒸腾量

作者简介: 杨永红(1965- ),男,重庆铜梁人,副教授,博士研究生,主要从事农业水土及节水灌溉方面的研究.E-mail:yyhts-386169880@qq.com.

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出版历程

Method for calculating Lhasa reference crop evapotranspiration by modifying Hargreaves

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目录

作者简介:
杨永红(1965- ),男,重庆铜梁人,副教授,博士研究生,主要从事农业水土及节水灌溉方面的研究.E-mail:yyhts-386169880@qq.com.