摘要
针对混交林中木荷大径材培育技术薄弱、林地产值低等问题,开展间伐试验。选取4种不同间伐处理,分析各间伐处理对木荷—萌芽杉木混交林胸径的影响。结果表明:各间伐处理对木荷生长的促进作用大于杉木,且间伐处理Ⅲ(保留35株木荷、10株杉木)更有利于加快大径级木荷的培育,间伐后1年2树种径阶分布峰值对应的径阶依次向高径阶递进,且同种间伐强度下木荷径阶分布曲线峰值所处径阶都大于杉木,说明间伐对木荷径阶增进效果大于杉木,有利于木荷向大径材方向发展。
Aiming at the problem of weak cultivation technology for large-diameter timber in the mixed forest and low forest property value,thinning experiments were carried out,four different thinning treatments were selected,and the influence of each thinning treatment on the DBH of the Schima superba-sprouting fir mixed forest was analyzed.Schima superba provides theoretical guidance for large-diameter timber cultivation.The results showed that the growth promotion effect of each thinning treatment on the growth of Schima superba was greater than that of Chinese fir and the thinning treatmentⅢretained 35 Schima superba.Compared with 10 Chinese fir,it was more conducive to accelerating the cultivation of large-diameter Schima superba.After thinning,the distribution of the two tree species'diameter stages was 1 year.The diameter steps corresponding to the peak value progressively increase to the higher diameter steps,and the diameter steps of the diameter steps of the Schima superba diameter distribution curve under the same thinning intensity are larger than those of fir.It can be seen that the effect of thinning on the diameter steps of Schima superba is greater than that of fir,and it is conducive to the development of Schima superba in the direction of large-diameter timber.
作者
肖斌
武晓玉
袁小平
杨弘
卢洪波
XIAO Bin(Subtropical Forestry Experimental Center,Chinese Academy of Forestry,Fenyi 336600,China)
出处
《安徽农学通报》
2021年第16期77-79,共3页
Anhui Agricultural Science Bulletin
基金
“十三五”国家重点研发计划重点专项课题(2016YFD0600606)。
关键词
间伐
木荷
萌芽杉木
胸径
混交林
Thinning
Schima superba
Budding fir
Diameter at breast height
Mixed forest
