【摘要】 为了营造生态经济型固沙林,以银中杨、小美旱杨、黑林-1杨和樟子松等树种为对照,选择彰武小钻杨在不同沙丘部位进行造林试验。试验表明:在平缓沙地彰武小钻杨生长量比较高,树高和胸径分别为银中杨的91.8%和104.2%,为黑林-1杨的105.9%和120.6%,为小美旱杨的112.5%和195.2%;在沙丘下部彰武小钻杨比樟子松生长量显著增加;而在沙丘上部比樟子松生长降低,并发生干枯。更多还原

【Abstract】 In order to create an eco-cash dune-fixation crop,Populus alba × P.berolinensis,Populus simonii×Populus pyramidalis+Salix matsudana,(Populus simonii×Populus nigra)×Populus euramericana cv.15A & Pinus sylvestris var.mongolica and other species were regarded as control,Populus× Xiaozhuanica were selected to conduct afforestation trials in different dune site.Test shows that : the growth of Populus×Xiaozhuanica are higher in the gentle sandy;tree height & diameter constitute 91.8% & 104.2% respectively of P.alba × P.berolinensis;tree height & diameter constitute 105.9% & 120.6% of(Populus simonii×Populus nigra)×Populus euramericana cv.15A;tree height & diameter constitute 112.5% & 195.2% of P.simonii ×P.pyramidalis+Salix matsudana.Growth of Populus× Xiaozhuanica increase significantly than that of Pinus sylvestris var.mongolica in the lower part of the dune;growth of Populus× Xiaozhuanica decrease than that of Pinus sylvestris var.mongolica in the upper part of the dune,and become dry rot.更多还原