جستجوی مقالات مرتبط با کلیدواژه "paddy farms" در نشریات گروه "منابع طبیعی"

Cultivation of the strategic crop of rice highly depends to the existence of sufficient and guaranteed irrigation water، and water shortage stresses have irreparable effects on yield and quality of productions. Decrease of the Sefidrud river inflow in Guilan province which is the main source of supplying irrigation water for 171 thousand hectares under rice cropping area of this province، has been challenged sufficient and guaranteed irrigation water supply in many regions of mentioned province. Hence، in present study estimating the value that paddy farmers place on sufficient and guaranteed irrigation water supply has been considered. Economic valuation of sufficient and guaranteed irrigation water supply improves water resource management policies in demand side. Requested data set were obtained on the base of a survey and are collected from 224 paddy farms in rural regions that faced with irrigation water shortages. Then، using open-ended valuation approach and estimation of Tobit model via ML and two stages Heckman approach، eliciting paddy farmers'' willingness to pay for sufficient and guaranteed irrigation water supply has been accomplished. Results revealed that farmers in investigated regions willing to pay 26. 49 percent more than present costs of providing irrigation water in order to have sufficient and guaranteed irrigation water.