This study investigates the population characteristics and nutritional components of three staple bamboo spe-cies for Ailuropoda melanoleuca,Bashania fargesii,Fargesia denudata,and F.scabrida in the Tangjiahe National Nature Reserve,Sichuan.The results showed that(1)the age-class proportion of the three bamboo species was as follows:peren-nial bamboos＞two-year-old bamboos＞one-year-old bamboos＞current-year bamboos＞dead bamboos,with the greatest differ-ence observed in the one-year-old bamboos.(2)Significant interspecific variation was observed in basal diameter,plant height,and the biomass of leaves and stems.(3)Lignin content exhibited the greatest interspecific variation,while cellu-lose content exhibited the least variation.B.fargesii had the highest lignin content,and F.denudata had the highest cellu-lose content.(4)There was no significant interspecific variation in fat content,and B.fargesii had the lowest fat and flavonoid contents.Both B.fargesii and F.denudata exhibited higher carbohydrate content than that of F.scabrida.(5)The contents of reducing sugars,crude fat,and crude protein varied among species.The leaves of B.fargesii had the highest content of reducing sugars,while the leaves of F.denudata had the highest content of crude protein and crude fat.(6)F.scabrida and F.denudata had higher protein content than B.fargesii,and notable interspecific variation was ob-served in methionine,proline,and glutamic acid among the 16 amino acids analyzed.This study enriches the fundamental data on gaint panda staple bamboos and provides a scientific basis for evaluating the quality of A.melanoleuca habitats and the selection of bamboo species for habitat restoration.
关键词
大熊猫/主食竹/生物量/营养成分/大熊猫国家公园
Key words
Ailuropoda melanoleuca/staple bamboo/biomass/nutritional component/Giant Panda National Park
维普
万方数据