Calculating water requirement for drought relief based on soil hydrological characteristics of field
As a major agricultural county in Liaoning Province,Fuxin Mongolian Autonomous County is prone to drought,especially in spring,because of climate type and geographical location.In order to better serve refinement of agriculture,by measuring hydrolo-gical characteristics(constants)of field soil and referring to standard"Definition and Grading of Meteorological Drought"in Fuxin City,theoretical lower limit of precipitation required to relieve drought conditions at each level(10 to 20,10 to 50 cm),theoretical lower limit of precipitation required to relieve wilting drought conditions for experimental crops(corn,soybeans)at each level,and relative humidity representation of meteorological drought standards for experimental area and two comparative experimental areas,were calcu-lated.Results indicated that amount of water needed to relieve withering drought varied depending on crop species and varieties.Experi-ment provided a scientific basis for research on drought resistance of field crops in Fuxin County.
soil hydrological characteristics of fielddroughtwilting humiditysoil moisture contentFuxin County
万方数据
维普
