关键词: 热值, 羊草(Aneurolepidium, chinense)草原

Abstract: Analysis of the caloric value of 55 northeast Aneurolepidium chinense grassland plants shows that 20% of plants had high caloric value, 58 % had medium value and 22 % had low value. The average caloric value of shoots was 17949.45 J·g-1. The caloric value of plant organs differed within plants as stored energy material was differently distributed among organs. The average caloric value of organs were: flowers 19399.28 J·g-1,stem 18022.58 J·g-1, leaves 17885.17 J·g-1, roots 17206.05 J·g-1. The average caloric value of shoots and other organs differed as much between plants in different families as between plants of the same genus. The average caloric value of shoots was not obviously different among the Compositae, Poaceae and Fabaceae, but caloric value of roots of Fabaceae was significantly higher than that of the Compositae and Poaceae.

Key words: Caloric value, Aneurolepidium chinense grassland