The Penman–Monteith (P–M) equation has been widely used to predict crop water use or evapotranspiration (ET) due to its simplicity and biophysically robust framework. Surface conductance (Gs), a key variable reflecting crop physiological and soil physical responses to changing environment,...

Sap flow is an important parameter for orchard irrigation scheduling. According to seasonal variation of trunk diameter and leaf area index (LAI), the whole growth stage of apple tree was divided into stage I (rapid leaf and trunk growing) and stage II (rapid fruit enlarging and maturing). Trunk...

The accurate partitioning of crop evapotranspiration (ETc) into two components, soil evaporation (Es) and transpiration (Tr), is needed to better understand terrestrial hydrological cycles and develop precise irrigation scheduling. However, there is no easy way to distinguish between the two....

Grapevines are extensively grown in the semiarid and arid regions, but little information is available on the variability of energy partitioning and resistance parameters for the vineyard. To address this question, an eddy covariance system was applied to measure energy balance over a vineyard...

Accurate determination of evapotranspiration (ET) is useful to develop precise irrigation scheduling. Although eddy covariance (EC) is a direct method which is widely used to measure ET, its performance in arid region of northwest China is not clear. In this study, ET measured by EC (ETEC) was...

In order to investigate crop coefficient (Kc) and evapotranspiration (ET) of grain maize modified by planting density, a field experiment was conducted from March to October in 2012 and 2013 in an arid region of northwest China. Five planting densities, i.e. 67,500, 82,500, 97,500, 112,500 and...

In order to investigate the response of vegetative growth, fruit development and water use efficiency to regulated deficit irrigation at different growth stages of pear-jujube tree (Zizyphus jujube Mill.), different water deficit at single-stage were treated on field grown 7-year old pear-jujube...

Grapevines are extensively grown in the arid region of China, but little information is available on the diurnal, seasonal and interannual variability of vineyard evapotranspiration (ET). To address this question, two vineyards in the arid region of northwest China were taken as an example to...

Selecting proper planting density can optimize light interception and increase crop water productivity. This research investigated the planting density effect on the evapotranspiration (ETc) and yield of greenhouse grown tomato in northwest China during December 2010 to June 2011 (first season),...

Studying farmland evaporative fraction (EF) plays an important role in interpreting the components of energy budget and evapotranspiration (ET). The present study examines the pattern of vineyard EF after monitoring energy components by eddy covariance for 2 years, and estimates the crop ET by...