YAN Jing-dong,LI Nan,XI Xiao-tong,et al.Analysis on Characteristics of Evapotranspiration of Evaporation Dish and Evaporation of Reference Crops in Guan County,Shandong Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2018,(12):11-13.[doi:10.11942/j.issn1002-2767.2018.12.0011]
山东冠县参考作物蒸散量与蒸发皿蒸发量特征分析
- Title:
- Analysis on Characteristics of Evapotranspiration of Evaporation Dish and Evaporation of Reference Crops in Guan County,Shandong Province
- Keywords:
- evapotranspiration; evaporation; significant correlation; guanxian
- 文献标志码:
- A
- 摘要:
- 为指导冠县农业生产及合理利用水资源，利用1961-2017年冠县气象局逐日蒸发皿蒸发量、平均气温、最高气温、最低气温、平均相对湿度、日照时数和平均风速等气象要素，采用气候倾向率和相关性方法分析冠县蒸发皿蒸发量与参考蒸散量的变化特征。结果表明：参考蒸散量日均值为3 mm,蒸发量日均值为5 mm,蒸发量大于蒸散量的值; 月蒸散量平均值为93 mm，月蒸发量平均值为156 mm，均表现为下降趋势。蒸散量春夏秋冬值分别为340、440、238、1034 mm；蒸发量春夏秋冬分别为609、659、354、169 mm；蒸散量年平均值为1 110 mm，蒸发量年平均值为1 893 mm,两者均表现为明显的下降趋势；冠县处于鲁西平原地区，受地形的影响较小，蒸散量与蒸发量两者表现为显著相关。
- Abstract:
- In order to guide agricultural production of Guan county and rational use of water resources,using meteorological elements such as evaporation of evaporating dish,average temperature,maximum temperature,minimum temperature,average relative humidity,sunshine hours and average wind speed from 1961 to 2017,Guan county Meteorological Bureau used climate tendency rate and correlation method to analyze characteristics of evapotranspiration of evaporation dish and evaporation of reference crops in Guan county.The variation of the evaporation amount of the evaporation dish and the reference evapotranspiration showed that the daily average value of the reference evapotranspiration was 3 mm,the daily average value of evaporation was 5 mm,and the evaporation amount was greater than the value of evapotranspiration.The average monthly evapotranspiration was 93 mm,and the evaporation was monthly.The average value was 156 mm,both of which show a downward trend.The values of evapotranspiration in spring,summer,autumn and winter were 340,440,238,and 104 mm,respectively Evaporation,spring,summer,autumn and winter were 609,659,354,and 169 mm,respectively.The annual average of evapotranspiration was 1 110 mm,evaporation The annual average was 1 893 mm,both of which show a significant downward trend.Guan county was in the Luxi Plain,which is less affected by the topography,and the evapotranspiration and evaporation are significantly correlated.Keywords：
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相似文献/References:
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备注/Memo
收稿日期：2018-07-17