盐胁迫对南疆滴灌枣园红枣生长的影响  

Effects of Salt Stress on Jujube Growth in Drip Irrigation Yard in Southern Xinjiang

作　　者：柳维扬[1] 蒋学玮[1] 曹琦[1] 彭杰[1] 高艳红 王家强[1] 

机构地区：[1]塔里木大学植物科学学院,新疆阿拉尔843300

出　　处：《北方园艺》2018年第1期67-71,共5页Northern Horticulture

基　　金：国家自然科学基金资助项目(41561068;41161048;11564032)

摘　　要：以5~10年生滴灌枣园为研究样地,"网格法"采集土壤样品,采用田间调查与室内测定分析相结合的方法,分析了土壤盐分含量动态分布规律及对红枣树生长的影响,以期为南疆盐碱土的枣树栽培和红枣产业可持续发展提供参考依据。结果表明:土壤盐分在0~40cm土层聚集明显,最高值达到76.27g·kg^(-1),严重危害枣树生长,土壤中的盐分含量与枣树的死亡率呈显著正相关,在0~20cm和20~40cm土层土壤含盐量与枣树的死亡率相关系数分别为R2=0.977 9和R2=0.944 1,干旱区滴灌土壤表层聚盐对枣树生长有明显胁迫危害,控制枣园土壤地下水位不超过临界深度,是干旱区枣业可持续发展的有效措施。5-10 year-old drip irrigation jujube yards were used as sample plots,grid method design was used to collect the soil samples.The soil salt contents were determined by using the method of lab analysis,and the effect on jujube growth was investigated via field investigation to provide reference base for the jujube cultivation on saline alkali soil in South Xinjiang.The results showed that with the soil salt mainly concentrated in 0-40 cm soil layer with the peak value of 76.27 g·kg^-1 which severely hazarded the growth of Chinese jujube,there was significantly positive relationship between the soil salt content and mortality rate with the correlation coefficient of（R^2=0.977 9）and（R^2=0.944 1）at 0-20 cm and 20-40 cm,respectively.For the drip irrigation jujube soil in arid areas,the concentrate salt of the soil surface had obvious stress hazards for the growth of Chinese jujube.It suggested that the underground water level controlled below the critical depth was the effective measures for the sustainable development of jujube.

关 键 词：盐渍化 红枣 盐胁迫 生长发育 

分 类 号：S665.107.1[农业科学—果树学]