摘要
为验证多孔膜的节水效果,重点考虑多孔膜的开孔度(30%、40%和50%)和埋深(10 cm、15 cm和20 cm)2种因素,以不铺多孔膜处理为对照,共计10个处理,立足于木耳菜盆栽试验,研究了风沙土条件下根层铺多孔膜的开孔度与埋深对木耳菜耗水特征的影响,结果表明:铺多孔膜各处理全生育期耗水量和耗水强度分别在72.34~92.82 mm和0.96mm/d~1.24 mm/d之间变化,整体较CK减少了6.22%~26.91%。表明风沙土条件下根层铺多孔膜具有较好的节水效果。铺多孔膜处理中,当开孔度或埋深一定时,除成熟期外,各生育阶段耗水量、耗水强度、全生育期耗水强度和耗水量均随着埋深或开孔度的增大先减小后增大。
In order to verify the water-saving effect of porous membranes,this paper mainly considers two factors,namely,the openness(30%,40%and 50%)and the buried depth(10 cm,15 cm and 20 cm).A total of 10 treatments are taken as control with non-laying porous membranes.Based on pot experiment of malabar spinach,the effects of opening and burying depth of porous film on water consumption characteristics of malabar spinach in aeolian sandy soil were studied.The results showed that water consumption and water consumption intensity of each treatment with porous membranes changed from 72.34 mm to 92.82 mm and 0.96mm/d to 1.24 mm/d respectively during the whole growth period,which reduced 6.22%to 26.91%compared with CK as a whole.Porous film on the roots of sandy soils has good water-saving effect.In the process of laying porous membrane,when the degree of opening or depth of burying is constant,water consumption,water consumption intensity,water consumption in all growth stages and all growth stages decrease first and then increase with the increase of burying depth or degree of opening except maturity.
作者
秦佳豪
QIN Jia-hao(Xinjiang Institute of Water&Hydropower Engineering Investigation,Design and Research,Urumchi 830000,China;College of Hydraulic and Civil Engineering of Xinjiang Agricultural University,Urumchi 830052,China)
出处
《云南水力发电》
2022年第6期299-303,共5页
Yunnan Water Power
基金
新疆维吾尔自治区高校科研计划(XJEDU2018Y024),新疆维吾尔自治区重点研发项目(2018B01002-2),新疆维吾尔自治区教育厅创新项目(XJEDU2017T004)。
关键词
多孔膜
风沙土
盆栽试验
耗水特征
porous membrane
aeolian sand
pot experiment
water consumption characteristic
