【目的】对环塔里木盆地中心地带——阿克苏市的枣-棉花间作系统枣树吸收根根系空间分布特征进行研究,以期为枣-棉花间作系统枣树根系吸水运移模型的建立、枣树保护带宽度的确定及田间灌水、施肥技术的改进提供基础资料。【方法】采用根系分层挖掘法,挑拣每一个土层样方内的活根,清洁、阴干、分类、扫描,并用专业软件对根系长度等指标进行测定分析。【结果】(1)垂直方向上,枣树吸收根根量主要集中在0～120 cm土层内,约占总量87.09%;(2)水平方向上,主要分布在距枣树树干0～150 cm范围内,占总量的83.67%;(3)根据棉花根系的分布,得到枣树与棉花根系分布密集区在距枣树100～150 cm、土层深度0～80cm的范围内。【结论】保护带的设置对于枣树根系的生长、缓解枣树与棉花间水分、养分的竞争有极其重要的作用,而保护带宽度的设定值得探讨,需要根据枣树的年龄、冠幅等进行综合判断。就此试验地的情况来看,在不改变该试验地枣树保护带宽度的条件下,枣树的施肥区域应在距枣树树干100～150 cm。 【Objective】 The objective of this study was to study the spatial distribution characteristics of the root system of jujube-cotton intercropping system in the center of the Central Tarim Basin - Aksu City, with a view to establishing a model of jujube- To determine the width of the field and field irrigation, fertilizer technology to provide basic information to improve. 【Method】 Root stratified mining method was used to pick and choose the root, clean, dry, classification and scanning in each soil layer. The length of root system was measured by professional software. 【Result】 (1) In the vertical direction, the root mass absorbed by Jujube mainly concentrated in 0-120 cm soil layer, accounting for 87.09% of the total soil volume. (2) In the horizontal direction, 150 cm, accounting for 83.67% of the total. (3) According to the distribution of cotton root, the root distribution of jujube tree and cotton was in the range of 100-150 cm from the jujube tree and depth of 0-80 cm. 【Conclusion】 The setting of protective tape plays an extremely important role in the growth of jujube root system and alleviating the competition of water and nutrient between jujube and cotton. The setting of protective tape width is worth discussing. Such as a comprehensive judge. According to the situation of the experimental site, the jujube tree fertilization area should be 100-150 cm away from the jujube tree trunk without changing the width of the jujube tree.