Biophysical controls of dew formation in a typical cropland and its relationship to drought in the North China Plain

Dew, as an important contribution of non-rainfall water (NRW), is found to be an important hydrologicalcomponent for ecosystem water stress alleviation and further ecosystem functions maintenance during rainlessseasons. The North China Plain (NCP) is facing severe water shortage mainly due to intensive agricultural irrigation. However, few studies have examined the variations and controlling mechanism of dew in the typicalcroplands predisposed to drought. Here, seasonal variation in dew was examined during growing period in awheat and maize rotation cropland in the NCP over 3 years (2008–2010), based on the eddy-covariance measurements of latent heat flux (LE) during nighttime. This dataset is stored as .jpg format (with the volumn of 321KB) and described Linear regression between nocturnal evapotranspiration (ETN) and dew during the wheat and maize growing periods over 2008–2010.