玉米留秆对沙地榛园造林成活率及生长情况的影响

Effects of Cornstalks on the Afforestation Survival Rate & Growth of Park of Hazel on Sandland

沙地建立平欧杂种榛园初期,通过在防护林带内种植玉米等高秆作物试验,结果表明:榛园建园初期,在防护林带内种植玉米等高秆作物并保留茎秆,可增强林带的防护能力,大幅度提高造林成活率和保存率,减少抽条现象的发生,减轻风沙对幼树的为害,促进树木的生长。玉米防护带可降低风速,减少园内的水分蒸发,提高了温湿度,有利于改善榛树授粉条件,延长了授粉时间。

During the initial stage of establishing Corylus heterophylla Fisch .＆#215; C .avellana L .on sandland ,experi-ments of planting corn and other long-stalked crops in shelterbelts were conducted .Result shows that ：during the initial stage of establishing park of hazel （Corylus heterophylla） ,planting corn and other long-stalked crops in shel-terbelt and retain the stem can enhance forest protection ,greatly improve the survival rate and preservation rate ,re-duce pumping phenomenon ,reduce sand damage to young trees ,promote tree growth .Corn protective belt can re-duce wind speed ,reduce evaporation of water in the park ,improve temperature and humidity ,extend the pollination time ,improve the pollination conditions of hazel ,extend the pollination time of hazel .