各类土壤田间持水量参考值

各类土壤水分常数和容重参考值土壤类型容重（克/厘米3）重量含水量（%）体积含水量（%）田间持水量凋萎含水量田间持水量凋萎含水量砂土1.605.02.08.03.2壤砂土1.558.04.012.46.2砂壤土1.5014.05.021.07.5壤土1.4018.08.025.211.2粘壤土1.3030.022.039.028.6粘土1.2040.030.048.036.0摘自：DripIrrigation-PrinciplesdesignandagriculturalPractices,1976.