武定县林业局副局长、林业助理工程师李胜元,二十多年来,扎根武定山区,把知识奉献给山区人民,帮助群众发展板栗生产,使全县板栗树由五十年代的一万二千多株,发展到现在的四十万株,既增加了当地群众的经济收入,又绿化了河山。李胜元是广东人,一九五九年毕业于昆明林业学校,同年分配到武定县从事林业工作。李胜元刚到武定县工作,就深入到县里一些高寒山区搞调查,他发现 Li Shengyuan, deputy director of Wuding County Forestry Bureau and assistant forestry engineer, has taken root in Wuding Mountain for more than two decades and devoted his knowledge to people in the mountains to help the masses develop chestnut production. From that, More than a thousand strains have been developed to the present 400,000 strains, which not only increase the economic income of the local masses but also afforest rivers and mountains. Li Shengyuan is a Cantonese, graduated from Kunming Forestry School in 1959 and assigned to Wuding County for forestry work in the same year. When Li Shengyuan arrived in Wuding County for work, he went deep into some alpine areas in the county to investigate. He found