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黑杨派无性系 35杨和苏杨 7号树冠开展 ,生长量大 ;74杨冠窄、干形端直 ,干材出材率高。在汛期淹水和地下水位较高的江滩、湖滩地 ,35杨的材积生长量高于黑杨派其他无性系 ;74杨在滩地生长量较低 ,在季节性淹水环境下会发生皮裂、干腐 ,此类立地不宜造林 ,但在地下水位较深的农田沟边有较好的生长量 ,可用于类似情况下的沟渠、道路绿化栽植。
Black poplar clones 35 Yang Yang and Yang Su 7 crown to carry out large growth; 74 Young crown narrow, dry-shaped straight, dry wood yield rate. The growth of volume of 35-yang was higher than that of the other clones of Populus simonii in floodplain and floodplain with higher groundwater table. The growth of Yang was lower in the littoral, Cracks and dry rotations are not suitable for afforestation. However, there is a good growth in the edge of farmland ditch with deep water table, which can be used for ditches and road planting in similar situations.