丘陵山区耐火树种造林试验初报

Preliminary Report on Afforestation Experiment of Fire-resistant Tree Species in Hilly Area

为了筛选适合低丘陵地区营建生物防火林带的优质树种资源,选用10个优良耐火树种在常州武进区典型丘陵地带进行了造林试验。通过造林成活率、平均地径、树高等生长量指标的比较分析,初步筛选出红叶石楠、海桐、女贞、木荷和青冈栎等5个造林成活率较高的树种,其中木荷的生长速度表现尤为突出,其地径年平均地径增长1.28cm/a,树高年平均增加0.44cm/a。从不同木荷种源的生长速度比较来看,江西永丰种源的地径生长量和树高生长量均优于其他种源,建议作为丘陵山区耐火树种造林备选树种加以推广应用。

In order to select the high-quality tree species resources suitable for the construction of biological fire pre⁃vention forest belt in the low hilly area,10 excellent fire resistant tree species were selected for afforestation experi⁃ment in typical hilly area of Wujin District,Changzhou.Based on the comparative analysis of afforestation survival rate,average ground diameter and tree height growth index,five tree species with higher afforestation survival rate were preliminarily selected,including Photinia serrulata,Pittosporum tobira,Ligustrum lucidum,Schima superba Schima superba showed the most prominent growth rate.its annual average ground diameter increased by and the an⁃nual average tree height increased by 0.44 cm/a.In the afforestation experiment of different Schima superba prove⁃nances,the growth of ground diameter and tree height of jiangxiprovenances were better than other provenances.It is suggested that Zhejiang provenances should be popularized and applied as the candidate tree species for afforesta⁃tion of refractory tree species in Hilly area.