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Division between transpiration and evaporation, and crop water consumption over farmland within oases of the middlestream of Heihe River basin, Northwestern China
Ist Teil von
Sheng tai xue bao, 2015-01, Vol.35 (4), p.1114-1123
Erscheinungsjahr
2015
Link zum Volltext
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
The process of evapotranspiration (ET) , which takes into account both evaporation (E) and plant transpiration (Tr), plays a prominent role in water and heat exchange in terrestrial ecosystem, given that it involves interactions between plants, soil and atmosphere. Evapotranspiration is also vital for developing water-saving irrigation schemes and improving the crop water productivity of farmland ecosystems. We investigated the variation in crop water consumption during the growing season for a maize field located in the Linze Inland River Basin Research Station of the Chinese Ecosystem Research Network. In this investigation, we obtained essential data, including micro-climate, turbulent exchange, evaporation, and leaf stomatal conductance, in 2009. Both meteorological factors and crop conditions can affect evapotranspiration. Micro-climate changes with meteorological factors, leading the variation in total evapotranspiration. In addition, the earth surface coverage, canopy aerodynamics, and other conditions