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The Comparative Analysis of Biomass and Calorific Values among Four 5 -Year-Old Locust Clones A study on the dynamic change of gross caloric value and ash content of the several tall grasses STUDY ON CALORIC VALUES AND ASH CONTENTS IN THE LEAVES OF TEN FICUS SPECIES AT XIAMEN BOTANICAL GARDEN On caloric values and ash contents of ten weed species in Jinhua suburb and its adaptive significances Caloric values and carbon contents of dominant trees in Xiaoxinganling forest region Comparison of caloric values and ash contents in three palm species