神农架拐棍竹林的初步研究

Preliminary Study on Fargesia spathacea Forests in Shennongjia.

拐棍竹(Fargesia spathacea Franch.)是中国特有分布种类,主要分布川、滇、陕、甘等省。是极有开发价值的植物资源,又是大熊猫取食主要竹种之一。本文研究了神农架拐棍竹林的生态生物学特点,客观地估算了其蕴藏量,进行了营养成分分析。现报道如下:

Shennongjia is the east edge for the distribution of Fargesia spathacea, where the forests are largely distributed over mountain slopes at the altitude of 1200—2000m.Fargesia spathacea has a strong ability of asexual propagation and regeneration, its life-span being about 7—8 years. The regression equations between weight and height and between height and diameters are respectively Y=-95.667+1.131X and Y =23.172+0.576X. The weight percentage of 1,2 and 3 years plants can reach to 27.15%, 27.97% and 44.88% respectively. The total reserve of Fargesia spathacea in Shennongjia is about 500 000 tons, which is rich in nutrients and provides ideal food resources for panda.