广西植物2016，Vol.36Issue(10)：1198-1204,1191,8.DOI:10.11931/guihaia.gxzw201508020
开花期枣树茎流与气象因子的关系
Relationship between stem flow of flowering jujube and meteorological factors
摘要
Abstract
Aksu area of irrigation water resources use rate is relatively low, the irrigation, drip irrigation, and arid environment and water resource shortage have become the main factors of constrainting local jujube planting industry de-velopment, therefore, it is urgent to find new water-saving irrigation method. We studied the relationship between jujube stem flow variation by different irrigation methods and meteorological factors, continuously monitored stem flow rate with Flow-32 packaged stem sap flow gauge produced by Dynamax company. The results showed that the change of stem lingerunder two kinds of irrigation methods presenting the obvious diurnal variation law of stem flow rate were unimodal curve and stem flow activities at night phenomenon was obvious. Stem flow morning starting time of was 0.5 h earlier than that of W2, W1 and W2 jujube stem flow were small amplitude “peak population” before and after the peak,W1 and W2 peak time were respectively 13:30-14:30 and 13:00-14:30, peak value were 2 133.33-2 724.93 g·h-1 and 2234.11-2 689.40 g·h-1 . Stem flow daily cumulative quantity change process curve were “S” shape, but W1, stem flow was greater than the total W2;Stem flow rate variation curves of solar radiation and temperature showed a positive correla-tion, a negative correlation with air humidity, poor correlation with wind speed;The apparent wave solar radiation trends under two irrigation methods and stem the flow curves presented similarities and differences, the start time was 0.5 h ear-lier than that of W1, 1 h earlier than that of W2, but the peak time was later than W1 and W2. Through correlation analysis, we deduced that the solar radiation main influencing factors, and set up two kinds of irrigation mode flow rate and meteorological factors of multivariate linear model, through the regression coefficient and correlation coefficient test, W1 and W2 multiple linear regression equation reached the significant level. This study provides scientific information for the practicality and superiority of new irrigation method W1.关键词
阿克苏地区/枣树/茎流速率/开花期/气象因素Key words
Aksu/jujube/stem flow rate/flowering/meteorological factors分类
农业科技引用本文复制引用
李宏,黎欢,裴东,程平,刘帮,张志刚,孙明森,李长城..开花期枣树茎流与气象因子的关系[J].广西植物,2016,36(10):1198-1204,1191,8.基金项目
中央级林业公益性行业科研专项(201304701-2)[ Supported by Forestry Industry Research Special Funds for Public Welfare Projects (201304701-2)]。 （201304701-2）
