辽宁省章古台引种樟子松造林研究

Introduction & Afforestation of Pinus sylvestris var. mongolica in Zhanggutai Area in Liaoning Province

辽宁省章古台于1955年引种樟子松进行治沙造林试验。在50多年引种栽培过程中,樟子松经受了环境条件的巨大变化,引起生理机能与生长发育规律的改变,出现旺盛生长期提前且缩短、提早衰弱、水分亏缺、感染枯梢病等不稳定因素。通过选育优良种源,选择优良无性系,降低造林和经营密度,营造混交林,提早打除底侧枝,防止枯梢病发生等措施,改善与提高了引种造林技术。通过对樟子松的引种造林,章固台地区生态系统逐渐完善与稳定,在杨树难以成林的干旱沙丘的中上部形成了固沙林生态系统,构成了典型的沙地造林模式。

Pinus sylvestris var. mongolica were introduced in 1955 in Zhanggutai area in Liaoning province for conducting experiments of combating desertifieation. In the course of 50 years＇ introduction afforestation cultivation, change of physiological function ＆ development law of Pinus sylvestris var. mongolica which endured great change of environmental conditions were changed;it appears instability factors of early or shorten vigorous growing period , earlier weakness, water deficit ＆ affected die-back. Through measures of selecting superior varieties ＆ clones, decreasing afforestation ＆ management density, constructing mixed forest, cutting lateral branches on the bottom earlier ,preventing oeeurrenee of die-back,introduction afforestation technology was improved ＆ increased. Through introduction afforestation of Pinus sylvestris var. mongolica, ecosystem in Zhanggutai area were improved ＆ stabilized gradually, sand-fixation forest ecosystem in middle ＆ on top part of dry dune which is difficult to make a poplar woods were composed;typical afforestation mode was formed.