关键词: 华北落叶松人工林, 立地类型, 生长与立地因子关系

Abstract: The main habitats of Larix principis-rupprechtii in Bashang situated on the semiarid-semihumid transition belt are as follows:the lower part of hill's sunside slope,shady slope,moderate-sloped fixed sand dune and eroded ground.Soil mechanical compounds and nutrition content don't affect the growth of Larix principis-rupprechtii largely,but soil erosion and sand burying do.Artificial Larix principis-rupprechtii forest has obvious effect of preventing soil erosion.The under-forest plants are prosperous,which have both function of protecting soil and being forage grass or firewood.The forest at 30 years old is just at the phase of fast-growing except for the plants growing on bad habitat.In the view of economic and ecological benefits,the forest in this stage is not suitable for cutting.

Key words: Artificial Larix principis-rupprechtii forest, Habitat, Growth