中文摘要：

通过显色示踪方法研究了微喷条件下入渗水量分布模式，在此基础上探讨了微喷组合布置形式。试验结果显示喷洒水量分布为2次曲线情况下，入渗后水量分布符合4次曲线；同时分布峰值位置沿半径方向向外侧偏移，而含水率变化量在垂直方向分布差异性较小。依据实际入渗水量分布情况，采用正方形组合方案对系统的灌溉效率进行评价，组合间距为1．1倍有效喷程时，均匀系数最大。基于入渗水量分布进行微喷组合将能够有效地提高灌水质量和效率。

英文摘要：

Single micro-sprinkler of water distribution in soil is studied by way of the stained tracer, based on the form layout portfolio. The results show that when the distribution of sprinkled water is 2 times for the curve, the distribution of infiltrated water is the 4 times for curve, and the peak position of the radial direction offsets outwards, changes of moisture content distribution in the vertical direction varies little. Based on the actual distribution of the infiltrated water, a square combination is used to evaluate the irrigation efficiency of the system, when the combination distance is 1.1 times, the uniformity coefficient reaches its peak. Combination based on the distribution of infiltrated water can improve the quality and efficiency of irrigation.