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出 处:《甘肃农业大学学报》2011年第4期74-79,共6页Journal of Gansu Agricultural University
基 金:国家科技支撑计划项目"甘肃干旱内陆区特色经济作物节水综合技术研究与示范"(2007BAD88B07-7)
摘 要:针对甘肃省河西灌区大面积栽培酿酒葡萄而水资源短缺的现状,试验采用烘干法结合GCM2010S太阳能数据采集系统,研究了地面覆草滴灌、覆膜滴灌等节水措施对干旱荒漠地区酿酒葡萄园土壤水分和土壤温度的影响.结果表明:覆盖滴灌措施明显减少了土壤水分蒸发,提高了土壤蓄水保墒作用;覆盖滴灌措施减弱了土壤的升温幅度,剧烈降温时,覆草滴灌对0~20cm土层温度的影响明显减小,但随土层深度的增大,影响程度逐渐减小;夹砂层土壤有利于水分的入渗,但不利于水分蓄积.Based on status of large area cultivation of brewing grape and water shortage in Hexi irrigation areas of Gansu Province,using GCM2010S solar data acquisition system,the effects of different water saving measures on soil water content and soil temperature in droughty desert region were studied in this paper.The results showed as follows:firstly,straw mulching significantly reduced the soil moisture evaporation and enhanced the ability of soil water storage and preservation;secondly,the increasing of soil temperature was weakened,so the affects of straw mulching on 0~20 cm soil temperature obviously reduced when it cooled severely,however the inferences decreased with the increasing of soil depth;thirdly,sand-mixed layer soil was unfavorable to water infiltration and favorable to water storage and preservation.
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