林木芽种较裸种出苗率更高，在吸附取种及供种时由于芽种流动性差、形态不稳定，传统精量播种技术会造成芽种严重损伤，影响容器育苗质量。为实现林木芽种的低损伤精量播种，对芽种的吸附形态影响机理进行研究。分析不同平均芽长芽种的物料特性对悬浮姿态的影响，找出适于气吹供种的最佳芽长范围；在气固两相流理论指导下进行模拟仿真与试验，明晰影响种群空间分布形态的主要因素及内在关系，探讨种群空间形态的控制方法；建立冷水雾化加湿系统以补充长时间气吹供种下芽种流失的水分，明确不同温度和供种气流速度下芽种的失水速率、加湿时长和雾化量；在吸附取种试验中应用图像采集技术，观测芽种的吸附形态，探索不同吸附形态对芽种生长指标的影响规律，建立低损伤吸附形态模型；采用数值模拟与实验相结合的方法，探究芽种的受力变化规律及运动形态，确定影响低损伤吸附形态的主要参数及水平变化范围，为制定低损伤林木芽种精量播种工艺提供理论基础及技术支持。

The trees bud-seeds have higher seedling emergence rate than naked species. However，due to the instability and low fluidity material of bud-seeds during suction and seeding，traditional precision seeding techniques may cause serious damage to buds then affect the quality of container nursery. In order to realize the low-damage precision seeding of forest tree buds，the suction mechanism of buds was studied. The effects of material properties of bud-seeds with different average bud lengths on their suspension gestures were analyzed，in order to find out the optimal bud length range that is suitable for gas blowing and seeding；The simulation and experiment was under the guidance of the theory of gas-solid two-phase flow. After that，make it clear what mainly affected the population spatial distribution and their internal relationship，and explore approaches to control the spatial shapes；The establishment of cold water atomization and humidification system can supply the loss of water after long-time air blowing seed germination. Find out the rates of water loss，the duration of humidification and the quantities of atomization of bud-seeds under different temperatures and air flow rates. The image acquisition technique was used in the experiment of suction and seeding，and the suction morphology of buds was observed，the influence of different suction morphology on the growth target of buds was explored. Low-damage suction model can be established. Numerical simulation and experimental methods are combined together to explore the rule of stress variation and the movement form of bud-seeds，and the main parameters as well as the horizontal variation range which affect the low-damage suction morphology were confirmed. The research will provide theoretical basis and technical supports for the development of low-damage precision seeding techniques of trees bud-seeds.