摘要
主要探讨了毛竹与寒竹属竹种混交成林的可行性以及该混交林的适生环境。通过对毛竹、寒竹属竹种适生环境以及宜宾市筠连县生态环境的比较和模拟,得出在亚热带地区毛竹与寒竹混交林适宜的海拔为600~1000 m;土壤条件以pH:4.7~7.0,土层疏松湿润,以富含有机质的壤土或砂质壤土为宜,厚度在80 cm以上。降水方面:地块年降水800 mm以上,4月份降水量在100 mm左右,4月初-6月初降水量400 mm左右,7、8、9这3个月,单月降水量在100 mm以上。温度方面:年均气温12~16℃,1月平均温度4~8℃,极端低温零下-17℃以上,7月平均气温16~25℃。常年多雾,湿度在80%以上。符合以上条件的地块可以考虑营造毛竹、寒竹属竹种混交林。同时宜宾市筠连县,也可考虑推广在海拔600~1000 m内的毛竹林下栽植寒竹属竹种,在不占用其他土地资源的前提下进一步增加竹材、竹笋等竹原料产量,为当地竹农创收。
This article mainly discussed the feasibility and suitable environment of the mixed forests of Phyllostachys edulis and Chimonobambusa species.By comparing the suitable environment of Phyllostachys edulis and Chimonobambusa Species with the ecological environment of Junlian County,Yibin City,it was showed that the suitable altitude of Phyllostachys edulis and Chimonobambusa species mixed forests in subtropical region was 600-1000 m;the soil pH was 4.7-7.0,the soil was loose and moist,preferably loam or sandy loam rich in organic matter,with a thickness of more than 80 cm.The annual precipitation of the plot was more than 800 mm,the precipitation in April was about 100 mm,the precipitation from early April to early June was about 400 mm,and the precipitation in July,August and September was more than 100 mm in a single month.The average annual temperature was 12-16℃,the average temperature in January was 4-8℃,the extreme low temperature was above-17℃,and the average temperature in July was 16-25℃.It was foggy all year round and the humidity was above 80%.The plots that meet the above conditions can be considered for the construction of mixed forests of Phyllostachys edulis and Chimonobambusa species.At the same time,in Junlian County,Yibin City,it can also been considered to plant Chimonobambusa under Phyllostachys edulis forests at an altitude of 600-1000 m,so as to further increase the production of bamboo materials,bamboo shoots and other bamboo raw materials without occupying other land resources,and to generate income for local bamboo farmers.
作者
林治宇
周鑫
郭杨
檀笑阳
余学军
LIN Zhi-yu;ZHOU Xin;GUO Yang;TAN Xiao-yang;YU Xue-jun(State Key Laboratory of Subtropical Silviculture School of Forestry and Biotechnology,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China)
出处
《竹子学报》
2020年第4期70-75,共6页
Journal of Bamboo Research
关键词
毛竹
寒竹属
混交林
Phyllostachys edulis
Chimonobambusa
Mixed forests
作者简介
林治宇,本科,从事森林培育研究。E-mail:932270395@qq.com;通信作者:余学军,教授级高工,从事森林培育研究。E-mail:438871887@qq.com。
