干旱区研究2012，Vol.29Issue(4)：635-640,6.
不同灌水量对尖果沙枣耗水特性及生长的影响
Effects of Different Irrigation Volumes on Water Consumption and Growth of Elaeagnus oxycarpa
摘要
Abstract
Elaeagnus oxycarpa is a pioneer species planted for water and soil conservation in arid area. In this study, neutron probe and oven drying method were used to monitor the change of soil moisture content, water con- sumption and water consumption intensity of E. oxycarpa were calculated using the water balance principle, and the growth of E. oxycarpa was analyzed. The results show that water consumption of E. oxycarpa was increased with in- creasing the irrigation volume, and the total water consumptions under 6 irrigation volumes were 172. 14 mm, 301.11 mm,346.92 mm, 372.53 mm, 428.74 mm, 564.62 mm and 631.96 mm respectively. The change of wa- ter consumption modulus was similar to the variation of the corresponding water consumption. Water consumption of E. oxycarpa in May and June was higher than that in other months, and the average daily water consumption inten- sity was also in a gradual increase trend with increasing the irrigation volume. All the growth indexes of E. oxycar- pa were increased with increasing the irrigation volume in an irrigation volume range of 30 -90 mm, but their differences were not significant when the irrigation volume was higher than 90 mm, especially the response of new branch length to irrigation volume was the most sensitive. Proportion of wilting coefficient of E. oxycarpa accounted for 11.33% of the field water capacity. Growth of E. oxycarpa could not be restricted when the field water capacity maintained higher than 49.15%.关键词
尖果沙枣（Elaeagnus/oxycarpa）/生育期/耗水特性/田间持水率/凋萎系数/玛纳斯河流域Key words
Elaeagnus oxycarpa/growth season/water consumption/field water capacity/wilting coefficient/Manas River Basin分类
农业科技引用本文复制引用
史册,范文波,朱红凯,王久龙..不同灌水量对尖果沙枣耗水特性及生长的影响[J].干旱区研究,2012,29(4):635-640,6.基金项目
国家自然科学基金 （）
石河子大学“263”青年骨干教师资助项目 （）
石河子大学“国家大学生创新性实验计划”（101075923）. （）
