【摘 要】
：
应用热脉冲技术对河套灌区农田防护林小美旱杨 (Populus popular’s)日蒸腾耗水量进行了研究。结果表明 :在正常生长状态下 ,小美旱杨的日蒸腾耗水量变化曲线呈宽峰状 ,随着林龄增加 ,日蒸腾耗水量逐渐增加。在不同水分条件下 ,灌水时日蒸腾耗水量小于未灌水时日蒸腾耗水量 :萌生苗日蒸腾耗水量大于扦插苗日蒸腾耗水量。
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应用热脉冲技术对河套灌区农田防护林小美旱杨 (Populus popular’s)日蒸腾耗水量进行了研究。结果表明 :在正常生长状态下 ,小美旱杨的日蒸腾耗水量变化曲线呈宽峰状 ,随着林龄增加 ,日蒸腾耗水量逐渐增加。在不同水分条件下 ,灌水时日蒸腾耗水量小于未灌水时日蒸腾耗水量 :萌生苗日蒸腾耗水量大于扦插苗日蒸腾耗水量。
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