毛红椿与杉木混交造林早期生长效果分析  

Analysis on the Early Growth Effect of Mixed Afforestation of Toona ciliate var.pubescens and Chinese fir

作　　者：林智勇[1,2,3] 廖鹏辉 李文开 张纪卯 康永武[5] 黄宇 LIN Zhiyong;LIAO Penghui;LI Wenkai;ZHANG Jimao;KANG Yongwu;HUANG Yu(Fujian Academy of Forestry,Fuzhou 350012,Fujian,China;Fujian Forestry Productivity Promotion Center,Fuzhou 350012,Fujian,China;Fujian Min Lin Forestry Judicial Identifica tion Center,Fuzhou 350012,Fujian,China;China Popularization Station of Forestry Science&Technology of Fujian Prov ince,Fuzhou 350003,Fujian,China;Sanming Sha County bamboo development center,Sanming 365500,Fujian,China)

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]福建省林业生产力促进中心,福建福州350012 [3]福建闽林司法鉴定中心,福建福州350012 [4]福建省林业科学技术推广总站,福建福州350003 [5]三明市沙县区竹业发展中心,福建三明365500

出　　处：《福建林业科技》2024年第1期33-37,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省科技厅省属公益类科研院所基本科研专项(毛红椿种质资源收集保存与优良材料选育,2019R1009-4);福建省林业科学研究院自主选题项目(闽林研[2015]73号);南方山地用材林培育国家林业和草原局重点实验室资助。

摘　　要：于2019—2023年,在福建省三明市沙县区高砂镇林场开展毛红椿与杉木不同比例混交及不同密度造林试验,研究混交树种的树高、地径、胸径、冠幅、单株立木材积和林分蓄积等生长性状的早期效果。结果表明,5年生的毛6杉4、初植密度为3330株·hm^(-2)(株行距2 m×1.5 m)的混交林中,毛红椿树高、地径、胸径、冠幅、单株立木材积和林分蓄积、林分总蓄积量均最高,分别达6.97 m、8.77 cm、7.13 cm、3.10 m、0.0173 m^(3)、34.60 m^(3)·hm^(-2)、48.03 m^(3)·hm^(-2),比平均值高出38.84%、21.30%、25.09%、42.86%、88.04%、1.66倍、1.01倍;杉木的树高、单株立木材积和林分蓄积均最高,分别达5.33 m、0.0173 m^(3)、34.68 m^(3)·hm^(-2);比平均值高出22.53%、1.08倍、2.18倍。毛2杉8、初植密度2505株·hm^(-2)(株行距2 m×2 m)的混交林中,杉木的地径、胸径和冠幅均最高,分别达10.67 cm、8.17 cm、2.67 m,分别比平均值高出52.60%、52.36%、47.33%。结果表明,在毛红椿与杉木混交造林时,宜用较大密度种植,初始造林密度适合在2505~3330株·hm^(-2);且相应加大毛红椿的比例。Early growth effects of the growth characters of height,diameter,diameter breast height,maximum crown width,stand volume per tree and stand vol ume were studied by mixed afforestation experiment of Toona ciliatevar.pubescens and Chinese fir.The results showed that afte r four years afforestation,the ratio of T.ciliate var.pubescens and Chinese f ir was 6∶4,and the height and diameter,dbh,maximum crown width,stand volume per tree and stand volume of T.ciliate var.pubescens were the highest at 2 m×1.5 m,they were 6.97 m,8.77 cm,7.13 cm,3.10 m,0.0173 m^(3),34.60 m^(3)·hm^(-2) and 48.03 m^(3)·hm^(-2) respectively,which were 38.84%,21.30%,25.09%,42.86%,88.04%,1.66 times and 1.01 times higher than the ave rage.The height,stand volume per tree and stand volume of Chinese fir were the highest,which were 5.33 m,0.0042 m^(3) and 34.68 m^(3)·hm^(-2) respectively,which were 22.53%,1.08 times and 2.18 times higher than the average.The diameter at ground,diamete r breast height and the maximum crown width of Chinese fir in the mixed forest w ith 2 m×2 m of plant and row spacing were the highest,which were 10.67 cm,8.17 cm and 2.67 m respectively,which were 52.60%,52.36%and 47.33%higher t han the average respectively.The total volume of the stand with 2 m×1.5 m spacing was the largest.In the mix ed afforestation of T.ciliate var.pubescens and Chinese fir,the planting density should be larg er,and the initial planting density was at 2505~3330 trees·hm^(-2).Th e proportion of T.ciliate var.pubescens and Ch inese fir should be increased in the mixture of T.ciliate var.pubescens and Chinese fir and Cunninghamia lanceolata.

关 键 词：毛红椿 杉木 混交林 生长效果 

分 类 号：S725.2[农业科学—林木遗传育种]