蒸发散

但当植被盖度超过70%、LAI超过4.8时，蒸发散的变化不再明显。

When vegetation coverage is higher than 70 % or LAI value greater than 4.8 , the increase in evapotranspiration is not evident .

结果表明：Penman-Monteith模型更适合芦苇群落蒸发散的模拟，可为芦苇湿地蒸发散的计算提供依据。

The results showed that Penman-Monteith model was the better one to simulate the evapotranspiration of Phragmites communis . This research would provide the evaluation method for the evapotranspiration of Phragmites communis .

由能量平衡计算，油松林睛天的蒸发散速率为3.6mm/d，日中最大可达0.7mm/h，整个生长季平均为3.1mm/d，其中林地蒸发0.4mm/d，林木蒸腾2.7mm/d。

The average evapotranspiration in the entire growing season was 3.1mm / d , of which , evaporation from the forest floor was 0.4mm/d and transpiration of the trees was 2.7mm/d .

油松人工林的能量平衡和蒸发散

Energy Balance and Evapotranspiration Observation in A Chinese Pine Plantation

复杂地表区域蒸发散量的统计&动力参数化方案研究

Study of Statistical-dynamical Parameterization Scheme on Regional Evapotranspiration Flux over Complex Land Surface

探讨泥岩地区盆栽植物之微气候影响因素，并以蒸发散量模式量化这些因子。

The influence factor of microclimate for potted plant at mudstone area is discussed .

经过初步检验，证明这一公式是可行的，适于对不同土地利用类型进行蒸发散的计算。

It has proved to be feasible for estimating the evapotranspiration from different land-use types .

前人对原始暗针叶林水文学的研究已相当丰富，内容涉及冠层截留、地被物持水特征、森林蒸发散、土壤入渗、根土作用层等诸多方面；

The physical characteristics of water for moss , litters and soil have been studied extensively in primary coniferous forests ;

因此，要充分发挥水土保持林的效益，必须降低林分的蒸发散、抑制林地蒸发，即减小造林密度。

In order to improve forest soil and water conservation , we should reduce the stand density to decrease evapotranspiration .

降水量不能满足蒸发散的需水要求，河流补给也是蒸发散的重要来源。

River water was an important source of evapotranspiration when the amount of the precipitation was not enough to supply the evapotranspiration .

本文通过逻辑推论，提出了一个计算森林生态系统蒸发散的理论公式。

With the application of the dimensional analysis and the theory of differential equation , the theoretical formula of forest evapotranspiration is established .

发现由于作物对梯田土壤水分的吸收利用，以及蒸发散的原因，导致水平梯田的土壤贮水量比休闲坡地小。

This research discovered that soil pondage of level terrace were less than fallow sloping filed because of crops ' absorbing and using , and evaporation .

结果表明：芦苇蒸发散日变化过程为单峰曲线变化，即中午高，早晚低；

The result showed that the daily variation process of Phragmites communis was fit to the single peak curve , namely high at noon while low at morning and night .

3生态系统总的水量平衡特点是，水分输入主要靠降水和土壤水分的水平运动补给，而土壤和植被蒸发散是系统的主要输出项。

In general , water balance of the ecosystem features that while water inflow has two main resources : precipitation and horizontal movement of soil water , water outflow is mainly through soil and vegetation evapotranspiration .

研究结果表明：研究地区典型灌草植被土壤水分年内变化受降雨和蒸发散的影响，可明显地划分为干湿两季和土壤水分变化的4个阶段；

Results show that the annual variation of soil moisture of the typical shrub-grass vegetation in the area affected by the annual variation of rainfall and evaportranspiration is remarkably divided into the arid and humid seasons , and four periods of soil moisture variation .

根据农田实际观测资料，利用改进的彭曼公式和设计的高温强度指数等，分析了江西省2003年特大高温干旱期间土壤水分特征、农田蒸发散量、高温强度指数与土壤水分的响应关系。

With filed monitoring data and by optimized Penman formula and High Temperature Intensity Index established , this paper analyzed the responding relations among the moisture features , field evaporation , high temperature intensity index and soil moisture during 2003 's catastrophic drought with high temperature .

该文在依据植被冠层结构特征对自然陆地生态系统的植被类型进行分类的基础上，综合地评述了不同植被冠层类型、不同区域尺度的植被蒸发散模型的研究进展。

On the basis of the classification of vegetation of natural terrestrial ecosystem in the light of the characteristic of canopy structures and fractional vegetative cover , the progress in evapotranspiration models for plants of different canopy types and of different regional scales is synthetically reviewed .

结果表明，本模式能合理地模拟荒漠下垫面地表热量平衡、土壤体积含水量、地表植被蒸发散阻抗、地表水汽通量日变化和湍流交换系数、湍流动能、位温和比湿廓线等。

The results show that this model can reasonably simulate the diurnal variations of heat balance , soil volumetric water content , resistance of vegetation evaporation , flux of surface moisture , and profiles of turbulent exchange coefficient , turbulent momentum , potential temperature , and humidity mixing ratio .

非均匀陆面上区域蒸发（散）研究概况

A survey in the study of area evaporation ( evapotranspiration ) over the heterogeneous landscape