苏柳172、苏柳194引种试验研究

Study on introduction trial of Salix×Jiangsuensis CL.'172' and S.× Jiangsuensis CL'194'

从江苏省林科院引进了选育的苏柳172、苏柳194、苏柳369、苏柳799等4个乔木型柳树优良品种,经育苗、造林试验,初步筛选出了在小陇山林区生长表现好的苏柳172、苏柳194。经造林后7年的生长分析:苏柳172胸径、树高生长量比对照黄花柳大20%和19%,苏柳194胸径、树高生长量比对照黄花柳大19%和5%;认为苏柳172、苏柳194生长优于本林区的对照黄花柳,作为造林树种引种获得成功,可在沟谷、水渍地等特殊生态位区作为恢复乔木层的速生树种进行推广造林。

Among the 4 fine species ofSalix × Jiangsuensis CL. ＇172＇ , S. × Jiangsuensis CL. ＇194＇ , S. × Jiangsuensis CL. ＇369＇ and S. × Jiangsuensis CL. ＇799＇ introduced from Jiangsu Forestry Academy, selected both species of S. ×Jiangsuensis CL. ＇ 172＇ and S. × Jiangsuensis CL. ＇ 194＇ with good growth performance in Xiaolongshan forest area by breeding and afforestation trial. Through the analysis on growth of 7-year-old S. × Jiangsuensis forest after afforestation, the growth increment of diameter of breast height（DBH） and tree height of S. x Jiangsuensis CL. ＇ 172＇ are 20% and 19% higher than that of Salix caprea, whereas S. × Jiangsuensis CL. ＇ 194＇ are 19% and 5% higher than that of Salix caprea. So it is deemed that the growth of both selected species of S. × Jiangsuensis CL. ＇ 172＇ and S. × Jiartgsuensis CL. ＇ 194＇ are better than that of Salix caprea grown in the forest area, and can extend and afforest in valley and wetland of special ecological area as fast-growth tree for restoring arbor layer.