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栎类林木在焦作太行山区的生态作用牛济国，李青松，张鸿礼（焦作市林业局）（济源市林业局）焦作市太行山区共有３５．７６万亩栎类林，占该区有林地面积的５８．３７％，主要建群种为栓皮栎、槲栎和槲树等，多数为天然次生，分布于海拔８００ｍ以上，起着涵养水源、减少...
Ecological Role of Quercus Forests in Taihang Mountain Region of Jiaozuo Niu Jiguo, Li Qingsong, Zhang Hongli (Jiaozuo Forestry Bureau) (Jiyuan Forestry Bureau) There are 357,600 mu of oak forest in Taihang Mountainous Area of Jiaozuo City, accounting for 58% of the total forest area in this area. 37%, the main constitutive species is cork oak, oak and oak trees, etc., most of the natural secondary, located at an altitude of 800m above, plays a conservation water, reduce ...