摘要
为了提高南疆地区核桃的产量,通过大田试验,采用了SF-G液流传感器监测核桃树在不同灌水定额条件下的茎流速率,分析了不同灌水定额与核桃树茎流速率变化的规律。结果表明:核桃树茎流速率昼夜变化明显,呈抛物线型,从早上9点30分左右开始快速增大到下午16点左右达到全天最大茎流速率;在不同灌水定额处理的条件下茎流速率日平均值大小关系是:处理3(灌水定额45mm)>处理2(灌水定额30mm)>处理1(灌水定额15mm);通过SPSS分析得出,不同灌水定额处理间核桃树茎流速率具有显著性相关。
In order to improve the walnut production at the south of Xinjiang, the stem flow rate of walnut trees under different irrigation quota was measured by the SF-G sensors. The change laws between different irrigation quota and stem flow rate was analyzed. The results showed that the sap flow rate of walnut trees changed obviously during day and night. It showed a parabola type. The curve increased rapidly from 9 ： 30 a. m. to 16 ： 00 p.m. The order of daily averages of the stem flow rate under different irrigation quota was C1（15 mm）〉C2（30 mm）〉C3（45 mm）. There were significant correlation between the different irrigation quota and sap flow rate of walnut trees through SPSS.
出处
《节水灌溉》
北大核心
2015年第12期35-39,共5页
Water Saving Irrigation
基金
新疆维吾尔自治区重大专项(201130103-1)
国家科技支撑计划项目(2011Bad29B05)
新疆水利科技项(2013G03)
新疆水利水电工程重点学科基金资助项目(XJZDXK-2002-10-05)
关键词
茎流速率
灌水定额
核桃树
滴灌
stem flow rate
irrigation water quota
walnut trees
drip irrigation
