杉木人工林不同郁闭度下楠木套种效果分析  

Analysis of the Effect of Intercropping Nanmu under Different Canopy Densities in Chinese Fir Plantations

作　　者：艾红钟 盛永贵 AI Hongzhong;SHENG Yonggui(Forestry Bureau of Huichuan District,Zunyi 563000,Guizhou,China)

机构地区：[1]遵义市汇川区林业局,贵州遵义563000

出　　处：《林业科技情报》2024年第4期46-48,共3页Forestry Science and Technology Information

摘　　要：为分析郁闭度对成熟杉木林下套种楠木林分生长效果的影响,在2013年,S市某林场通过主伐择伐的方式,进行实验研究。在本次实验中,实验团队选取立地条件相似的26年生成熟杉木纯林作为实验区域。保留3个密度处理,分别为900、600、750株/hm^(2),同时,在2018年2月进行2年生楠木的套种工作,其密度分别为1200、1050、900株/hm^(2),并设置主伐择伐保留900株/hm^(2)的对照组。在2023年2月时,该实验团队对林分生长量开展严格比对。其结果表明:保留杉木密度以600株/hm^(2)为宜,林下套种楠木以1200株/hm^(2)为宜。In 2013,a forest farm in S city conducted an experimental study on the effect of canopy closure on the growth of understory intercropped Chinese fir stands.In this experiment,the experimental team selected a 26 year old mature Chinese fir pure forest with similar site conditions as the experimental area.Three density treatments were retained,with 900,600,and 750 plants/hm^(2),respectively.At the same time,the intercropping of 2-year-old Nanmu was carried out in February 2018,with densities of 1200,1050,and 900 plants/hm^(2),and a control group was set up with 900 plants/hm^(2)retained during the main cutting and selective cutting.In February 2023,the experimental team conducted a rigorous comparison of stand growth.The results indicate that it is advisable to retain a density of 600 Chinese fir trees/hm^(2),and to intercrop Nanmu trees under the forest at 1200 trees/hm^(2).

关 键 词：不同郁闭度 杉木人工林 楠木套种效果 

分 类 号：S157.432[农业科学—土壤学]