Analysis of Nutrient Compositions of Phragmites Communis in Different Habitats
Yang Hailian; Chen Guocang; Zhang Chenglie(Department of Biology,Lanzhou University,Lanzhou 7 30000)
Nutrient compositions of Phragmites communis habited in different environments were analyzed.Theresult showed that:(1)Biomass of Swamp reed was the highest,Sand dune reed the second,Salt meadowand sand dune transitional zone reed the thread.Salt meadow reed the lowest;Contents of carbohydratewere Sand dune reed.Swamp reed Salt meadow and sand dune transitional zone reed Salt meadow reed;Contents of Crude protein from high to low was Salt meadow reed,Sand dune reed,Swamp reed,and Salt0meadow a nd sand dune transitional zone reed.(2) Total amino acids and free amino acids of reeds habitedin different environments had 18 kinds of natural amino acids .contents of essential amino acids weredifferent due to various environments.Contents of essential amino acids in total amino acids and structuralamino acids were more than 40%. The results suggested that among 4 reed we use Sand dune reed first,then Swamp reed,and then Salt meadow and sand dune transitional zone reed, Salt meadow reed.