米槠等8个阔叶树种造林生长状况的初步研究

A Preliminary Study on Planting Growth Status of Eight Hardwood Species Such as Castanopsis carlesii

对米槠等8个阔叶树种进行造林试验,结果表明:参试树种3年生树高存在极显著差异,以闽粤栲和米槠最好,与杉木相当,达2 5m左右,其次为拉氏栲和木荚红豆树;8年生幼林材积生长量也以米槠(44 8m3·hm-2)和闽粤栲(42 2m3·hm-2)为最好,其次是丝栗栲(28 7m3·hm-2)和拉氏栲(28 1m3·hm-2)。从适应性和生长量的角度来看,参试树种的大小排序为米槠、闽粤栲>丝栗栲、拉氏栲>深山含笑、木荚红豆树、细叶香桂>少叶黄杞。其中米槠、闽粤栲、丝栗栲和拉氏栲等4个树种适宜做为优质阔叶用材树种进一步推广造林。

The planting trials on eight hardwood species were carried out.The results indicated that there were significant differences among height growth of three-year-old hardwood species.Castanopsis fissa and C.carlesii grew best,up to 2.5 m,equal to Chinese fir,and the followings were C.lamontii and Ormosia xylocarpa.The juvenile stand volume of eight-year-old Castanopsis fissa and C.carlesii were 44.8 m^3·hm^(-2) and 42.2 m^3·hm^(-2) respectively,the next were C.fargesii (28.7 m^3·hm^(-2)) and C.lamontii (28.1 m^3·hm^(-2)).According to the suitability and increment,the sequence was C.carlesii and C.fissa>C.fargesii and C.lamontii>Michelia maudiae,Ormosia xylocarpa and Cinnamomum subavenium>Engelhardtia fenzelii.In the end,as excellent hardwood species,C.carlesii,C.fissa,C.fargesii and C.lamontii are suggested to be popularized.