摘要
应用生物进化理论分析揭示,新疆杨扦插成活率较早期大幅度提高,不是技术进步的原因,而是人为选择效应作用的结果,并通过理论模型计算进行了验证。进一步又分析揭示并计算验证,人为选择对种子繁殖的造林树种发芽性状以及相关性状具有巨大的塑造作用。推论指出,营造生态公益林应该避免人为选择效应,最好采取播种造林方式。
Analysis of the theory of biological evolution and theoretical model calculation verified that Populus boUeana cutting survival rate increased significantly earlier, is not the reasons of the progress of technology, but the result of the selective effect. According to the article, artificial selection has a huge impact on afforestation tree species germination character and related properties of seed breeding. Corollary pointed out, artificial selection should be avoided, and the best way is sowing afforestation for the ecological public welfare afforestation.
出处
《甘肃林业科技》
2014年第4期1-6,75,共7页
Journal of Gansu Forestry Science and Technology
基金
国家科技支撑计划项目"2011BAK12B08"资助
关键词
造林树种
繁衍
性状变异
人为选择
种群演变
afforestation tree species
reproduction
character mutation
artificial selection
population evolution
