在生物量、生产力研究的基础上，通过干重热值测定，对黄山松（ Ｐｉｎｕｓ ｔａｉｗ ａｎｅｎｓｉｓ）群落的能量现存量、能量净固定量及太阳能转化效率进行分析讨论。测定结果表明：（１）黄山松群落各组分样品的干重热值具有一定的差异，树皮的干重热值最高，为 ２２１４ｋ Ｊ／ｇ，枯根的干重热值最低，为 １６２７ｋ Ｊ／ｇ。（２）黄山松群落的能量现存量为 ３７９８３２３ｋ Ｊ／ｍ ２，其中地上部分为 ２７５４８８０ｋ Ｊ／ｍ ２ （占 ７２５％ ），地下部分为 １０４３４４３ｋ Ｊ／ｍ ２ （占 ２７５％ ）；１９９３ 年黄山松群落的能量净固定量为２０６５４１ｋ Ｊ／ｍ ２·ａ，其中用于群落自身增长的能量为 １３８９４４ｋ Ｊ／ｍ ２·ａ，而释放至其它子系统的能量为 ６７５９７ｋ Ｊ／ｍ ２·ａ。（３）林地太阳光合有效辐射能的转化效率为 ０９９７％ 。 Based on the biomass and productivity studies, the energy stocks, net energy fixtures and solar energy conversion efficiencies of Pinus taiwanensis community were analyzed by dry weight calorimetry. The results showed that: (1) The dry weight calorific value of each component of Pinus taiwanensis community was different. The dry weight of bark had the highest caloric value of 2214k J / g, the dry root caloric value was the lowest, 16  27k J / g. (2) The existing energy of Pinus taiwanensis community is 3798323k J / m 2, including 2754880k J / m 2 (accounting for 725%) above ground and 1043443k J / m 2 in underground 27.5%). In 1993, the net energy fixation of Pinus taiwanensis community was 206541k J / m 2 · a, and the energy used for community self-growth was 13,8944k J / m 2 · a and was released to other Subsystem energy is 6759  7k J / m 2 · a. (3) The conversion efficiency of photosynthetically active solar radiation to forestland is 0997%.