潜在蒸散

潜在蒸散量根据每日的气象观测资料，用FAOPenman-Monteith公式进行计算。

Daily measured climate data are used to calculate potential evapotranspiration amount with FAO Penman - Monteith Equation .

通过对彭曼-蒙蒂斯（Penman-Monteith）方法的修正和简化，确定了计算潜在蒸散和作物系数的模式。经验证，说明所建模式的效果是好的。

Models of potential evapotranspiration and crop coefficient are determined by the modification and simplification of the well-known Penman-Monteith Model .

验证流域潜在蒸散量需要把流域站点20cm口径的蒸发皿蒸发量转换成大型蒸发池蒸发量。

The station 's 20 cm-diameter evaporation pan evaporation capacity is converted to that of large-sized evaporation tank .

降雨量与潜在蒸散量系统误差对非点源污染负荷的影响具有相似性，均是泥沙不确定性最大，然后依次是TP负荷、河流流量和TN负荷。

Rainfall and potential evapotranspiration system error on non-point source pollution load of a similar nature are the greatest uncertainties in the sand , followed by TP load , river flow and TN load .

近40a江河源区潜在蒸散量变化特征及影响因子分析

Trend of Potential Evapotranspiration and Its Main Impact Factors in the Source Regions of Yangtze and Yellow Rivers

文中用NOAA数据、DEM数据结合实测气象数据对Penman公式进行修正，再用修正后的Penman公式计算雅鲁藏布江流域潜在蒸散量。

NOAA / AVHRR and DEM ( Digital Elevation Model ) together with the measured meteorological data are applied to modify Penman Formula . And the monthly potential evapotranspiration of Yarlung Tsangpo River Basin is calculated with the modified Penman Formula .

采用简单实用的Priestley-Taylor公式计算潜在蒸散量，并考虑作物覆盖与残茬覆盖对土壤蒸发与作物蒸腾的影响。

A simplified Priestley-Taylor equation was employed in the model to calculate potential evapotranspiration , and the effect of residue cover on evapotranspiration was also considered .

结果表明，该地区的日平均潜在蒸散量将增加10.7%，土壤水分消耗量将增加16.8mm。

The result shows that daily average potential evapotranspiration amount and soil moisture consumption will increase by ( 10.7 % ) and ( 16.8 mm ) respectively in 2080 .

雅鲁藏布江流域潜在蒸散量计算方法

Method for computation of potential evapotranspiration in Yarlung Tsangpo River Basin

1956~2000年中国潜在蒸散量变化趋势

Trend of potential evapotranspiration over China during 1956 to 2000

气候学方法适用估算一个地区潜在蒸散量和相对耗水量；

Microclimate factor method can estimate possible evapotranspiration of stand and area .

基于潜在蒸散和干燥度指数的河北省农业气候区划

Agricultural climate division of Hebei Province based on potential evapotranspiration and surface aridity index

基于气温的潜在蒸散发量估算方法在我国西北干旱地区的应用比较中国天山山区潜在蒸发量的时空变化

Comparison of temperature-based methods for estimating potential evapotranspiration in the arid region of Northwest China

结果表明，流域大部分站点的潜在蒸散量计算精度在75%以上。

The conclusion shows that the precision of monthly potential evapotranspiration of most of the stations is larger than 75 percent .

还利用建立的模型，模拟了2080年的气候条件变化对潜在蒸散量和土壤水分含量的影响。

The impacts of climate on potential evapotranspiration and soil water content under 2080 's climatic condition were simulated with the model .

利用福州市气象站基本气象资料，分析了近34年来地表潜在蒸散量和湿润指数的变化特征。

By using the34-year data from the Fuzhou weather station , the distribution characteristics of potential evaporation and humid indexes are analyzed .

鄱阳湖地区潜在蒸散年总量多年平均值呈现逐年减少的变化趋势，青海湖地区蒸散量减少趋势缓慢。

The annual potential evapotranspiration in Poyang Lake region shows decreasing trend , but in Qinghai Lake area it is reducing very slowly .

潜在蒸散量自西向东先增加后减少，实际蒸散随海拔升高先降低再增大。

Potential evapotranspiration increased first and reduced later from the west to the east , but evapotranspiration decreased first and increased last with elevation .

模拟结果表明：不同坡度、不同坡向条件下的水分分布状况和区域潜在蒸散存在着较大的空间差异性。

The results of simulation showed that : The soil water replenishment and the potential evapotranspiration were different in different slope and aspect conditions .

在探讨潜在蒸散量计算方法的基础上，计算出孟津县农田潜在蒸散量和土壤含水量；

The paper probes into the methods of calculating the potential evaporation and gives an appropriate method to calculate soil water content and potential evaporation .

潜在蒸散量与蒸发器所测值虽在数值上有所差别，但趋势基本一致，蒸发器所测值的峰值变化落后于理论计算值0.5月。

The tendencies of potential and observed evapotranspirations are basically consistent , but the observed one has a delay of0.5 month as compared with the potential one .

近36年天山山区潜在蒸散量变化特征及其与南、北疆的比较

Study on the Change of Annual Potential Evapotranspiration in the Tianshan Mountainous in Resent 36 Years and Its Comparison with That in South Xinjiang and North Xinjiang

结果表明：从空间分布来看，潜在蒸散量年均和四季从西北到东南基本呈下降趋势。

The results show that : From the spatial distribution , the annual and quarterly potential evapotranspiration from northwest to the southeast of basic have downward trend ;

以田间实验资料为基础，建立农田蒸散量和土壤相对含水量与潜在蒸散的函数关系。

On the basis of the experimental data in farmland , a function relationship between the potential evapotranspiration and the relative water content of the soil in the root zone was established .

从能量平衡原理出发，对潜在蒸散的计算进行了简化，从而对作物缺水指数法干旱遥感监测模型进行了简化。

Based on the principle of energy balance , the method for calculating latent evaporation was simplified , and hence , the construction of the drought remote sensing monitoring model of crop water shortage index was also simplified .

以流域为研究单元，采用水量平衡与估算法相结合的潜在蒸散修正模型，定量分析了绕阳河上游流域不同水平年水量平衡的月值和年值。

Taken the watershed in the upper reaches of Raoyang River as a study area , the annual water equilibrium was calculated by using a modified model of stand evapotranspiration , which was a combined method of water equilibrium and estimation .

选择适合的潜在蒸散和湿润环境蒸散的估算式，利用相对潜在蒸散量指标，相对实际蒸散量指标及流域湿润度，通过数据集群技术，完整模拟并展现了蒸散互补相关关系。

By thoroughly analyzing the concept of " potential evaporation " and " wet environment area evapotranspiration ", using index of comparatively potential evaporation and comparatively actual one , the complementary relationship between actual and potential evapotranspiration was testified entirely with data integration technique .