黄土高原主要薪炭林树种营养成分分析

通过测定１４种薪炭树木叶片的营养成分，对它们的营养特征及品质进行了分析。结果表明根瘤树木叶片蛋白质含量一般高于非根瘤树木，其中刺槐，沙柳、沙棘、沙枣和紫穗槐还高于锦鸡儿属植物小叶锦鸡儿和柠条锦鸡儿。

ANALYSIS ON NUTRIENT COMPONENTS OF MAIN FUEL-PLANTATION TREES ON LOESS PLATEAU

By determining leaf nutrient components of 14 species of fuel tree there was a anal.ysis on their nutrient characterstics and quality in this paper. It was showed that for theleaf protein content nitrogen-fixing trees were usually above non-nitrogen-fixing ones,and Robinia pseudoacacia, Hippophae rhamnoides, Salix mongolica, Elaegus angustifolia and Amorpha fruticosa above Caragana plants Caranana microphylla and C. korshinshii. Among the divided clusters of 7, the type only including Robinia pseudoacacia withhigh protein content and good eatability was the best in nutrient quality,which was followed by Hippophae rhamnoides, Elaegnus angustifolia, Amorpha fruticosa and Salixmongolica,and the poor in nutrient quality was Rhus typhilla.