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evaporation from water surface
    Compared with the bare land,the mixed forest and manual shrubbery can reduce evaporation from water surface 50.54% and 55.20%,respectively.
    水面蒸发量为裸地最大,混交林及灌木林能有效减少水面蒸发,减少量较对照裸地可达50.54%和55.20%。
    Analysis on the Variation Trends of Evaporation from Water Surface Different Evaporators in the Northwest Tarim Basin, Xinjiang
    塔里木盆地西北部不同类型蒸发器水面蒸发变化趋势分析
    Applying stepwise regression (the fiducial degree is 0.05), the equation of soil moisture content (y) can be expressed: y= 486. 709+ 2. 061X4 + 1.786X9 - 4.451X10 (R =0.830,X4 :content of waterstable granule, X9:rain fall before 15d, X10: evaporation from water surface).
    运用逐步回归(a=0.05)方法,建立土壤含水量(y)及其影响因子(X_4为水稳性团粒含量,X_9为测土壤水前15d的降水量,X_(10)为水面蒸发量)线性方程为y=486.709+2.061X_4+1.786X_9-4.451X_(10),R=0.830。
    STUDY ON A NEW CALCULATION MODEL OF HTE EVAPORATION FROM WATER SURFACE
    一种新的水面蒸发计算模型的研究
    Based on evaporation from water surface (the emended E601's evapo-ration) in Changwu tableland, the revised Penman's formula is tested inthis paper after having briefly been introduced, and the result is relati-vely satisfactory.
    本文在简介彭曼修正式之后,依长武塬区的水面蒸发量(经过校正的E601蒸发量实测值),对其进行了检验,结果是比较满意的。
    According to the abundant data collected in field and laboratory experiments by the State Collaboration Research Group on Evaporation and Heat Loss from Water Surface since 1976 and a number of historical data observed in hydrological stations located in the typical regions in China, the elements influencing evaporation from water surface and the nonlinear interactions between them are determined, new non-dimensional parameters and new structure of the formulae are recommended. The constant coefficients in the formulae are determined based on the statistical analysis on measured data.
    根据自1976年以来全国水面蒸发与散热研究协作组在我国各典型地区的原体与室内实验资料和大量水文站历史资料,通过理论分析和统计检验,确定了影响水面蒸发的诸因子及其非线性相互作用,引入了新的无量纲参数和公式结构,用实测资料统计确定了公式中的常系数,得到了用开敞湖面一般水文气象资料计算逐日蒸发和散热系数的公式。
    For example,annual sunshine hours and annual average wind speed decreased gradually, while the relative humidity increased slowly with time, which caused regional decrease of evaporation from water surface.
    如年日照时数和年均风速逐渐下降,而相对湿度呈上升趋势,进而引起地区性的水面蒸发量下降。
    It includes the water demand by the watercourse system (including the water transferring sand and the evaporation from water surface) and by the floodplain land.
    河流系统的生态用水包括河道系统 (包括排沙生态用水和水面蒸发生态用水 )和洪泛地系统两大系统的生态用水。
    In order to research the calculation method of evaporation from groundwater under the condition of with crops, the calculation method according to the soil moisture suction of root zone is proposed based on the facts that evaporation from groundwater under the condition of with crops depends mainly on crops rather than evaporation from water surface( evaporation capacity);
    为了研究有作物条件下潜水蒸发的计算方法,根据有作物条件下潜水蒸发取决于作物生长本身,与水面蒸发(大气蒸发能力)并无直接关系;
    For example, evaporation from water surface decreased, relative humidity near to the ground surface increased, sunshine hours reduced and wind speed decreased.
    例如 :水面蒸发量下降、近地面大气相对湿度上升、日照减少、风速下降等。
    Water consumption in early flowering and setting fruit could be well estimated through the data of the evaporation from water surface measured by pan,the evaporation pan index was 0.39 and 0.82,respectively.
    利用蒸发皿测定的水面蒸发量能够很好地估算温室内的青椒耗水量,两种情况下温室青椒开花座果初期蒸发皿系数分别为0.39和0.82;
    This paper studies the effect of weather change on regional evaporation by analyses change trend of reference crop evapotranspiration(ET0), and the effect of irrigational agriculture development on irrigation district actually measured evaporation from water surface.
    主要从分析参考作物蒸发蒸腾量(ET0)的变化趋势来反映气候变化对蒸发的影响,从灌区实测水面蒸发量的变化趋势来分析灌溉农业发展对区域蒸发的影响。
    Annual observed evaporation from water surface for the period 1955~1994 of Jinghuiqu irrigation district experiment station shows a decrease trend and annual distribution of it shows that the proportion of the three months (from June to August) has a decreasing trend too.
    从泾惠渠灌区灌溉试验站实测水面蒸发资料分析,显示明显的逐年减少的趋势,年内分布表明6~8月水面蒸发量所占比例有降低趋势。
    In southern part of Xinjiang the precipitation is low and evaporation is high evaporation from water surface is the main water loss of river runoff.
    南疆位于新疆南部,降水稀少、蒸发强烈,水面蒸发是河川径流水量损失的主要组成部分。
    Agriculture is the main economic sector and superiority propertyin Xinjiang,and it depends on irrigation. Because of canal system,evaporation from water surface is high,scientific forecast evaporation from water surface is a foundation for how to effectively use water resources and promote agriculture development.
    农业是经济的主要支柱和优势产业,而南疆的农业是灌溉农业,渠系众多,水面蒸发量损失较大,合理地预测水面蒸发量是有效利用水资源和促进农业发展的基础。
    The relationships between average air temperature,humidity every month etc and evaporation from water surface every month were analysized by using thirty years meteorological phenomena of the southern part in Xinjiang,the results indicated the relationships were closely related,forecast model of evaporation from water surface was built.
    利用南疆近30年来的气象资料,分析了南疆的月平均气温、湿度、水汽压等与月水面蒸发量的关系,结果表明气温和月水面蒸发量相关性均较好,可建立用气温资料预测水面蒸发量的模型。
    According to observations on the microclimate of different models of forest-grass rehabilitation,such as mixed forest,manual shrubbery,wild shrubbery and grass glad,in Ansai experiment station,the main climate factors,such as air temperature,relative humidity,soil temperature,evaporation from water surface and so on,were analyzed.
    通过对安塞县几种不同类型退耕还林还草模式,如混交林、人工灌木林、野生灌木林及林中草地进行了小气候观测,分析了不同退耕模式林草配置下的主要小气候特征,采用平行对比观测法定点定时观测了空气温湿度,土壤温度,水面蒸发并与对照裸地进行了对比。
 

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