Based on the measured data, annual water consumptions are estimated for different land-useing types by applying evaporation coefficient method, and the ecological water use is analyzed in Weiganhe river plain oasis.
根据监测资料,采用蒸发系数法对渭干河平原绿洲各种土地类型的年耗水量进行了估算,并分析了其生态用水量。
Based on the universal water surface evaporation coefficient formula obtained from numerous experimental data and extensive evaporation investigations of different types of water regions in China, a formula of additional evaporation loss from cooling ponds caused by waste heat rejection is recommended and compared with that used currently.
应用基于大规模的试验研究建立的水面蒸发系数－ 散热系数全国通用公式Ｂ， 推导了冷却池受纳热负荷的附加蒸发计算公式。
In order to make ET estimated conveniently,this research analyzed the correlation between water surface evaporation(E0) and crop evapotranspiration(ET) measured by large scale lysimeter,and the variation of evaporation coefficient.
为了更方便地估算作物蒸发蒸腾量,以大型称重式蒸渗仪实测的冬小麦蒸发蒸腾量(ET)为依据,分析了水面蒸发量(E0)与实测蒸发蒸腾量(ET)的相关性,并研究了蒸发系数的变化规律。
The influencing factors of phreatic evaporation are analyed,and the empirical formula related to the limit depth and the coefficient of phreatic evaporation and the depth of phreatic water is given based on the phreatic evaporation observation data from seven groundwater balance testing fields in Xinjiang plain area.
以新疆平原区 7个地下水均衡试验场潜水蒸发观测资料为基础 ,分析了潜水蒸发的影响因素 ,给出了潜水蒸发极限深度、潜水蒸发系数及其与潜水位埋深间的经验公式。
Results show that straw-mulching has effect on soil water content of 0～10 cm layer, crop water requirement and the soil evaporation coefficient, Ke.
结果表明,秸秆覆盖对含水量影响较大,0～10cm土层土壤含水量随着麦秸覆盖量的增加而增大;秸秆覆盖量对棵间蒸发量E和土壤蒸发系数Ke的影响较大,E和Ke值随覆盖量增加而减小,在玉米生长初期阶段影响最大,中期阶段影响最小;有覆盖试验区需水量比无覆盖区小,有一定的节水效果。
Elementary Discussion on Conversion Coefficient of Evaporation from Water Surface in the Southwestern Humid Tropical Region of Yunnan Province
滇西南湿热区水面蒸发折算系数初探
The Calculation Program Development for the Thermal Conductivity and Viscosity of Water and Steam
水和水蒸气导热系数及粘度值计算程序开发
Computational Study on Dynamic Performance of Gas-Steam Launching System;
燃气—蒸汽发射系统动力特性计算研究
Design and Development of Replenishing Cultivated Land with Quantity Mass Note Grade Conversion Information System of Hebei Province;
河北省补充耕地数量质量按等级折算信息系统的设计与开发
The formula of calcuating average coefficient of refraction is inferred.
推导出大气折光平均折射系数的计算公式。
Full-load Water Level Digital Control System of Steam Generator
蒸汽发生器水位全程数字化控制系统
Mathematical model and process simulation of parallel-feed multi-effect evaporation system
平流多效蒸发系统的数学模型与求解
Mix the Determination of Passenger Car Equivalents under the Traffic Condition;
混合交通条件下车辆折算系数的确定
Study on Conversion Coefficient of Supplementary Cultivated Land in Hubei Province;
湖北省补充耕地按等级折算系数研究
A MODEL FOR CALCULATING HEAT TRANSFER COEFFICIENT CONCERNING ETHANOL-WATER MIXTURE CONDENSATION
酒精-水混合蒸气凝结换热系数的计算模型
The Numerical Simulation of Fluid Flow and the Preliminary Research of Heat Transfer Calculation for Thin-film Evaporator;
薄膜蒸发器流体流动数值模拟及传热计算初探
Applicability Evaluation of ET_0 Calculation Formulas and Relationship between Physiological Index and Evapotranspiration;
ET_0计算公式适用性评价及作物生理指标与蒸发蒸腾量关系的研究
NUMERICAL CALCULATION OF HIGH ORDER ABERRATION COEFFICIENTS OF RADIAL GRIN LENS
梯度透镜折射率分布高次项系数的数值计算
A Practice of Asset Discount Function in the Constant Coefficient Investment-consumption Model;
常系数投资消费模型中资产折算函数常用
Study on Measuring Crop Evapotranspiration and Crop Coefficients Changes;
作物蒸发蒸腾的测量及作物系数变化规律的研究
Design and Calculation of Experiment Platform for Control System of Once-through Steam Generator;
直流蒸汽发生器控制系统实验台架设计与计算
Estimation of Regional Evapotranspiration Using Two Source Energy Balance Model and ETM+ Imagery
区域土壤植被系统蒸散发二源遥感估算
Study on suitable crop-pan coefficients during early florescence for drip-irrigated muskmelon under film mulch in greenhouse
温室甜瓜膜下滴灌初花期适宜蒸发皿系数研究
