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科学水平的提高,为揭示森林生态、社会经济的产生和发展规律提供了可能。根据森林客观价值原理,可以分出林业树木学、林业昆虫学、林业土壤学。随着研究的深入,又可以分出林业生物学、林业生物化学、林业材种学、林业种植学、林业水文学、林业土壤改良学。如运用管理程序对林木进行储量分类、计算和合理种植,又可分出林业类型学、林业材积测量学、林业经理学、林业经济学、林业苗圃和人工造林等学科。根据生态学说的原理,又可分出林业生物群落学。森林完全由气候条件所决定,其分布具有区域分布恒定性规律。太阳幅射提供热能,土
The improvement of the scientific level has provided the possibility of revealing the laws of forest ecology, social economy and development. According to the objective value of the forest principle, can be divided into forestry and tree science, forestry entomology, forestry and soil science. With further research, but also can be divided into forestry biology, forestry biochemistry, forestry timber species, forestry planting, forestry hydrology, forestry soil improvement. Such as the use of management procedures for the classification of forest reserves, calculation and rational planting, but also can be divided into forestry typology, forestry volume measurement, forestry managers, forestry economics, forestry nursery and afforestation and other disciplines. According to the principle of ecology, but also can be divided into forestry biomes. The forest is completely determined by the climatic conditions, and its distribution has the rule of regional distribution. Solar radiation provides thermal energy, dirt