武夷山风景名胜区四种天然林的热值比较研究

通过对武夷山风景名胜区的马尾松林、杉木林、毛竹林、阔叶林四种天然林林分热值的测定，研究结果表明：马尾松林、杉木林和阔叶林木的各器官热值大小顺序基本相同：叶〉枝〉干〉粗根〉中根〉细根，毛竹林的各器官热值大小顺序为：杆〉枝〉叶〉鞭根〉竹蔸。毛竹林的地上部分热值（59．39kJ／g）最大，阔叶林的地上部分热值（55．14kJ／g）最小。马尾松林的地下部分热值（52．09kJ／g）最大，毛竹林的地下部分热值（37．41kJ／g）最小。四种天然林分的热值大小顺序为：马尾松林〉杉木林〉阔叶林〉毛竹林。

Through calorific value determination on pine forest, fir forest, bamboo forest, broad-leaved forest which were located at Scenic Area of Mountain WuYi,research showed that： the order of calorific value of various organs among pine forest, fir forest, Broad-leaved forest were quite alike,it＇ s leaves 〉branch 〉trunk 〉fat root〉ordinary root〉slim root; the order of calorific value of bamboo forest is： trunk〉 branch 〉leaves 〉 rhizome 〉head of bamboo.The calorific value of bamboo forest＇ s aboveground part（59.39kj/g） is the biggest, the calorific value of broad-leaved forest＇ s aboveground part（55.14kj/g） is the smallest. The calorific value of pine forest＇ s underground part （52.09kj/g） is the biggest, the calorific value of bamboo forest＇ s aboveground part（37.41kj/g） is the smallest. The order of calorific value among these four kinds of forests is： pine forest 〉fir forest 〉broad-leaved forest 〉bamboo forest.