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在黎平、天柱和锦屏杉木种子园开展了花粉管理技术的基础研究。结果表明：杉木种子园的花粉飞散持续时间因各年份大气状况的不同而有较大的差异，一般每年的花粉飞散高峰期为2～4天。在同一林分中、郁闭度小的地段花粉云密度大。同一密度林分，坡向不同，花粉密度也不等。在同一坡面上，中部花粉密度最大。在树冠范围内．上部的花粉密度高于下部，迎风面花粉接收量明显高于背风面。不同方位和高度花粉接收量的差异受天气状况和郁闭度影响。杉木种子园的隔离带宽度应大于600m。
In Liping, Tianzhu and Jinping Cedar Seed Orchard pollen management technology carried out the basic research. The results showed that the duration of pollen scattering in Chinese fir seed orchard was greatly different due to the different atmospheric conditions in each year. Generally, the annual pollen scattering peak was 2-4 days. In the same stand, the density of pollen clouds is high in the areas with small canopy density. The same density stand, different slope, pollen density is not equal. In the same slope, the largest pollen density in the middle. Within the canopy range. The upper pollen density is higher than the lower part, and the windward pollen receiving amount is obviously higher than the leeward side. The differences in pollen reception at different orientations and altitudes are affected by weather conditions and canopy density. Cedar seed orchard isolation zone width should be greater than 600m.