章古台沙地彰武小钻杨造林试验

摘要

In order to create an eco-cash dune-fixation crop, Populus alba x P. berolinensis ,Populus simoniixPopulus pyramidalis +Salix matsudana, (Populus simoniixPopulus nigra ) xPopulus 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 PopulusxXiaozhuanica 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 sinmniixPopulus nigra)xPopulus euramericana cv. 15 A;tree height & diameter constitute 112.5 % & 195 2% of P. simonii xP. pyramidalis+Salix matsudana. Growth of Populusx Xiaozhuanica increase significantly than that of Pinus sylvestris var. mongolica in the lower part of the dune ; growth of Populus x Xiaozhuanica decrease than that of Pinus sylvestris var. mongolica in the upper part of the dune, and become dry rot%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。