排灌机械工程学报2025，Vol.43Issue(5)：525-532,8.DOI:10.3969/j.issn.1674-8530.23.0260
河套灌区枸杞产量及根层水盐对微咸水灌溉量及矿化度的响应
Response of Lycium barbarum yield and water-salt in root layer to brackish waster irrigation volume and mineralization degree in Hetao Irrigation District
摘要
Abstract
To explore the effects of varying brackish water irrigation quantity and mineralization levels on the soil water with different salt distribution and yield of Lycium barbarum root layer,a two-factor field experiment was conducted in the Sanhuhe irrigation area,which is located downstream of the Hetao Irrigation District.Three irrigation levels were established at 210(W1),300(W2),and 390 mm(W3),respectively.Additionally,four different salinity levels(2(S1),3(S2),4(S3),and 5 g/L(S4))were set,respectively.Fresh water irrigation with a mineralization degree of 0.608 g/L was used as the control group.The results show that under the condition of the same irrigation amount,the soil moisture content initially increases and then decreased with the increase of salinity,peaking at S2 level.All brackish water irrigation treatments lead to salt accumulation.When the irrigation amount is low,salt accumulation is evident in the profile.As the irrigation amount increases,there is an in-creasing trend in salt accumulation in the depth.In brackish water irrigation treatment,the W2S1 has the highest yield.Over the two-year period,the average fresh fruit yield reaches 16 593.85 kg/hm2 and the dried fruit yield is 4 448.38 kg/hm2.The simulation results show that the optimal brackish water ir-rigation volume is 334.90 mm and the salinity degree is 2 g/L in the lower reaches of Hetao Irrigation District.关键词
枸杞/微咸水/土壤盐分/含水率/产量/河套灌区Key words
Lycium barbarum/brackish water/soil salt/moisture content/yield/Hetao Irrigation District分类
农业工程引用本文复制引用
袁鹏伟,杨树青,张万锋,娄帅..河套灌区枸杞产量及根层水盐对微咸水灌溉量及矿化度的响应[J].排灌机械工程学报,2025,43(5):525-532,8.基金项目
国家自然科学基金资助项目(52069023,52179037) （52069023,52179037）
