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据1980年县(区)级林业资源清查结果,唐山市油松林在山地植物群系中所占比重很大,但目前经营管理粗放、经济效益低。今后油松仍是山地造林的主要树种,有很大的生产潜力。研究现有油松林的经营管理,使其充分发挥生态和经济双重效益,是一项紧迫的任务。下面按照林业资源清查汇总资料结合近年来调查情况,提出油松林
According to the inventory results of forestry resources at the county (district) level in 1980, the percentage of Pinus tabulaeformis forest in the mountain flora in Tangshan City is very large, but the current management is extensive with low economic benefits. In the future, Pinus tabulaeformis is still the main tree species in mountainous afforestation, which has great potential for production. It is an urgent task to study the management and management of the existing Pinus tabulaeformis to give full play to its ecological and economic benefits. In accordance with the following summary of forestry resources inventory combined with recent investigations, put pine forest