Aerodynamic Resistance and Penman–Monteith Evapotranspiration over a Seasonally Two-Layered Canopy in Semiarid Central Australia

Fixed versus Variable Bulk Canopy Resistance for Reference 1 Evapotranspiration Estimation Using the Penman - Monteith 2 Equation under Semiarid Conditions

Evapotranspiration from Northern Semiarid Grasslands

Proper grazing management reduces ET from grasslands by reducing transpiration losses and grazingManagement of forage production for livestock grazing on semiarid induced surface energy relationships that reduce evapograsslands depends on water availability. Evapotranspiration (ET) ration (Svejcar and Christiansen, 1987; Wraith et al., was measured using the Bowen ratio energy balance method on...

Evaluation of Canopy Temperature--evapotranspiration Models over Various Crops*

Hatf ie ld , J. L., Reg ina to , R. J. a n d Idso, S. B., 1984. Eva lua t ion of c a n o p y t e m p e r a t u r e e v a p o t r a n s p i r a t i o n mode l s over var ious crops. Agric. For. Meteorol . , 32: 41-53 . C a n o p y t e m p e r a t u r e s , w h e n m e a s u r e d r emo te ly , o f fe r a m e t h o d of e s t ima t ing evapo t r a n s p i r a t i o n wi th surface energy ba lance...

Nighttime Evapotranspiration from Alfalfa and Cotton in a Semiarid Climate

Nighttime evapotranspiration (ETN) has typically been neglected in estimating water loss from land surfaces. Our objective was to quantify the contribution of ETN to daily (24-h) ET (ET24) of irrigated and dryland cotton (GossypiumhirsutumL.) and irrigated alfalfa (Medicago sativa L.) grown in a semiarid climate. The results were then examined using a Penman–Monteith ETmodel which separates con...

kurdish diaspora in central asia and caoucasus

در طول دو قرن گذشته و ظهور روسیه بعنوان قدرتی بزرگ در عرصه جهانی و شروع رقابت با سایر قدرت های بین المللی و منطقهای خصوصا با ایران و عثمانی این ئکشور تلاش کرده است تاد از جمعیت کردها در این کشورها در راستای منافع خود بهره برداری کند در قرون 18 و 19 بارها بخشی از کردها برعلیه امپراطوری عثمانی توسط این کشور مورد استفاده قرار گرفت خصوصا در جنگ های سال 1790تا 1798. این ججنگ ها م.جب شد که بخشی از کر...