摘要
研究了卧龙自然保护区拐棍竹地下茎的数量特征、垂直分布结构、分岔习性和繁殖特点。结果表明,拐棍竹地下茎的密度大,193段.m-2,每段平均长为12.2 cm,地下茎总长2 169.8 cm.m-2,地下茎直径平均为1.1 cm,节间长平均为0.73 cm,平均每段地下茎具14节;随生长年龄递减,拐棍竹的地下茎直径、节间长、每段节数和每段长度递增,而地下茎段数和总长的变化则呈偏正态分布;拐棍竹地下茎主要分布在5~30 cm土层,并以"两侧单岔"为主要分岔类型,其次分别为"两侧多岔"和"一侧单岔","一侧多岔"很少;拐棍竹地下茎在土壤中延伸方向从坡面来看以"平行"方向延伸类型所占数量最多,为49.75%,从土壤剖面上来看拐棍竹地下茎在土壤中延伸方向则以"向上"类占优势,为53.19%,其次为"向下"类延伸方向,为39.12%。
The quantitative characteristics,vertical distribution pattern,branching and reproduction of the rhizome system of Fargesia robusta in Wolong Natural Reserve were studied in this paper.The results showed that the rhizome density of Fargesia robusta amounted to 193 segments per square meter.The average length of each rhizome segment was 12.2 cm.The total length of bamboo rhizome was 2 169.8 cm per square meter.The average diameter of rhizome was 1.1 cm. The average length of rhizome internodes was 0.73 cm.Th...
出处
《竹子研究汇刊》
2008年第4期13-19,共7页
Journal of Bamboo Research
关键词
卧龙自然保护区
拐棍竹
地下茎结构
Wolong Natural Reserve
Fargesia robusta
Rhizome structure
