毛金竹在江西地区的生物学特性

毛金竹是江西优良的乡土笋材两用竹种,但长期处于野生状态,资源面临衰退的局面,亟需开展科学经营研究和技术推广。在江西省毛金竹林分内设立固定样地,进行了连续3年的生物学、生态学特性研究。结果表明:毛金竹笋期为4月中下旬至5月上旬、历时30~35d,笋期前25d的出笋数约占总数的75%,笋期高生长具有"慢-快-慢-停"的生长规律,幼竹高生长于6月20日左右完成,且新竹地径决定立竹全高。

Biological Characteristics of Phyllostachys nigra var. henonis in Jiangxi Province

Phyllostachys nigra var. henonis is an excellent native bamboo species for both shoot and timber in Jiangxi Province. However, the resources have been lack of management for a long time, challenged by obvious decline. Therefore, it is an urgent task to carry out scientific research and technology promotion for the species. This paper studies the biological and ecological characteristics of Ph. nigra var. henonis forest in Jiangxi Province by setting fixed sample plots in the bamboo forests and researching there for three consecutive years. The results show that the shooting period of Ph. nigra var. henonis lasts 30-35 days from mid late April to early May. The number of shoots in the first 25 days accounts for 75% of the total. The height growth of young bamboo follows the " slow-fast-slow-cease" patter, and stops around June 20. The total height of new bamboo is determined by the base diameter of new bamboo.