漫灌条件下盛果期灰枣各生育期茎流变化  

Flourishing Jujube Sap Flow of Different Growth Periods under Irrigation Conditions

作　　者：程平 李长城[2] 李宏 刘帮[2] 张志刚 孙明森[2] CHENG Ping;LI Chang-cheng;LI Hong;LIU Bang;ZHANG Zhi-gang;SUN Ming-sen(Xinjiang Academy of Forestry Sciences, Xinjing Urumqi 830000,China;Forestry and Horticulture College, Xinjiang Agricultural Uni-versity ,Xinjing Urumqi 83005 , China)

机构地区：[1]新疆林科院,新疆乌鲁木齐830000 [2]新疆农业大学,新疆乌鲁木齐830052

出　　处：《西南农业学报》2017年第10期2315-2321,共7页Southwest China Journal of Agricultural Sciences

基　　金：国家林业公益性行业专项项目"新疆特色林果提质增效关键技术研究与示范"(201304701-2)

摘　　要：【目的】本文在常规漫灌方式下研究了盛果期灰枣各生育期耗水量变化,为盛果期灰枣的节水灌溉做准备。【方法】在漫灌条件下,对盛果期灰枣茎流进行监测,了解其茎流变化。【结果】盛果期灰枣在整个生长季中膨大期茎流总量最大为2367 218.86 g,占总生长季茎流量40.46%,落叶期茎流总量最小为197 991.5 g,占总生长季茎流量3.38%;各生育期的茎流量与太阳辐射、温度成正相关,与空气湿度成负相关,并在P<0.01的水平上相关性都显著;综合评价影响各生育期茎流变化的主要气象因子为太阳辐射、温度、湿度。【结论】根据不同生育期茎流量的主导因素不同来制定合理的灌溉制度,为后期盛果期灰枣的节水灌溉提供理论基础。【Objective】In this paper,the change of water consumption during the growth period of Ziziphus jujuba in full fruit period under conventional flood irrigation was studied to prepare the water saving irrigation of jujube fruit period.【Method】Under flooding conditions,the flourishing gray jujube sap flow was monitored to understand the sap flow. 【Result】During jujube fruit period throughout the growing season,the total sap flow maximum of enlargement period was 2367 218. 86 g,accounting for 40. 46 % of the total growing season sap flow,and the total sap flow minimum of defoliation period was 197 991. 5 g,accounting for 3. 38 % of sap flow in the total growing season; The sap flow of each growth period had a positive correlation with solar radiation and temperature,a negative correlation with air humidity,and both significant at 0. 01 level. According to comprehensive evaluation,the main meteorological factors affecting sap flow at various growth stages were solar radiation,temperature and humidity. 【Conclusion】Depending on the dominant factors in stem flow of the different growth stages,the reasonable irrigation system would be established to provide a theoretical basis for the flourishing gray water-saving irrigation of the late date.

关 键 词：漫灌 盛果期灰枣 茎流总量 茎流速率 气象因子 相关性 生育期 

分 类 号：S718.432[农业科学—林学]