蒸腾系数

长期土壤水分中度胁迫可造成根系减产5.31%，茎叶生物量减少14.75%，总生物量减少10.37%，但中度干旱处理具有较高的根冠比和经济系数，其产量水平WUE增大，蒸腾系数减小。

During long period moderate drought , roots yield , stems and leaves yield and biological yield descended 5.31 % , 14.75 % and 10.37 % respectively , but ratio of root to shoot , economic index and WUE of yield level increased , transpiration coefficient declined .

蒸腾系数、耗水量和耗水系数的含义及其内在联系

Transpiration Coefficient , Water Consumption Coefficient and Water Consumption and Their Relationships

同时，CO2浓度增高，减小了气孔导度，叶温升高，蒸腾系数减弱，从而提高了水分利用率。

Additionally , with increasing CO2 concentration , the stomatal conductance and transpiration ratio decrease while leaf temperature and water use efficiency rise .

结果表明，CO2浓度增加促进了玉米的生长和发育，物候期提前，光合速率增大，蒸腾系数减少，加快了根、茎、叶等干物质积累，提高了生物产量和经济产量。

The experiments show that increasing CO2 concentration can promote growth and development of maize , shorten phenophase , enhance photosynthetic rate , decrease evaporation rate , step up biomass accumulation of roots , stems and leaves , and increase biolgical and economic yields .

蒸腾系数分析，水稻生理需水并非最多。

From analysis of the transpiration coefficient , it shows that rice is not much .

测定蒸腾系数的简便方法

A Simple Method for Measuring Transpiration Coefficient

对紫花苜蓿的蒸腾系数和耗水系数的影响因子和范围进行了较为详尽地阐述。

The influence factors and ranges of transpiration coefficients ( TC ) and water consumption coefficients of alfalfa were studied .

紫花苜蓿花前蒸腾系数及紫花苜蓿和玉米经济产量耗水系数比较

Alfalfa 's Pre-blossoming Transpiration Coefficients and Comparison of the Water Consumption Coefficients Between Alfalfa and Maize in Terms of Economic Yield

不可依据牧草和粮食作物蒸腾系数的比例关系直接推断二者的经济产量耗水系数比例关系。

The ratios of WCC on economic yield of forage and crop plants can not be estimated directly by the ratios of TC of them .

探讨苜蓿花前与全生育期蒸腾系数的差异，对苜蓿和玉米经济产量耗水系数进行比较。

A comparison of the different of alfalfa 's transpiration coefficients between the pre-blossoming and the whole growth stage and the water consumption coefficients of alfalfa and maize in terms of economic yield were made .

根据蒸腾系数，可以将树种划分为四种类型：节水高产型，节水低产型，耗水高产型，耗水低产型。

On the basis of transpiration rate , species are classified into four types : high yield and water saving , low yield and water saving , high yield and water consuming and low yield and water consuming .

引入盐分影响下的作物蒸发蒸腾修正系数，并且与水盐生产函数相反馈进行土壤水盐动态的修正。

Introduced salt modified coefficients to evapotranspiration and feedback with the salt and water production function , evapotranspiration and the salt-water regime model are modified .

Hargreaves计算参考作物蒸发蒸腾量公式经验系数的确定

Determination of the empirical coefficient of Hargreaves formula in computing crop evapo-transpiration

控制灌溉条件下水稻蒸发蒸腾量及作物系数试验研究

Experimental study on evapotranspiration and crop coefficient of rice under controlled irrigation

本文研究了黄土高原地区7种能源林植物的光合速率，蒸腾强度和蒸腾系数以及环境因素对光合速率的影响。

The paper has studied the main factors effecting photosynthetic rate of 7 plants used for energy-forest and their photosynthetic rate , transpiration rate , transpiration coefficient .

蒸腾速率始终是缺乏型限制因子，FAF为60%，说明棉花蒸腾系数大，是需水量较大的作物。

Transpiration rate , 60 % of FAF , was a deficit inhibiting factor all the way , revealing that cotton had a high transpiration coefficient , and was a water urgently demanding crop .

在农田尺度，非理想的环境中，蒸发蒸腾量的估算遵循传统的三步骤法：参考作物蒸发蒸腾量作物系数土壤水分修正系数。

In a field , a common procedure to estimate ET under nonideal conditions is the three - stage modeling procedure : reference ET crop coefficients soil moisture term .