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在滇东北山区坡地农林复合经营中用桤木作造林树种，能提高退化地的生产力和有较好的水土保持及改善土壤结构作用。高位修枝可以减少林冠层遮荫面积的70％以上；格木树枝的再生萌发能力强，5年生以上隔2～3年可修枝1次，15年生以上单株每次可修枝叶30kg；在年龄为6～10年、密度为1200株／hm2的复合林内平均每年可修鲜枝叶76t／hm2。桤木在秋冬季落叶，不影响复合林内冬季作物生长。
In alpine and mountainous areas in northeastern Yunnan, agroforestry using alder as afforestation can improve the productivity of degraded land and have better water and soil conservation and improve the role of soil structure. High pruning can reduce the canopy shade area of more than 70%; Georgia branch of the regeneration of germination ability, more than 5 years from 2 to 3 years can be pruning 1, 15 years of age or more leaves per plant can be repaired 30kg; In the age of 6 to 10 years, the density of 1200 plants / hm2 the average annual number of fresh branches and leaves can be repaired 76t / hm2. Alder leaves fall and fall in autumn and winter, does not affect the winter crop growth in the compound forest.