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西藏是我国核桃的主要栽培区之一。目前分布的核桃属植物主要为核桃(Jug-lans regia)和铁核桃(Juslanssigillata)两种。铁核桃既有原始群落,又有栽培种群。核桃主要分布在雅鲁藏布江中上游两岸的各县,以及澜沧江和怒江上游地区。主产区年平均气温为8.2～11. 6℃,极端最低气温为
Tibet is one of the major cultivation areas of China’s walnut. The current distribution of walnut plants are mainly walnuts (Jug-lans regia) and iron walnut (Juslanssigillata) two. Iron walnut both the original community, there are cultivated populations. Walnuts are mainly distributed in counties along the middle and upper reaches of the Yarlung Zangbo River and in the upper reaches of the Lancang River and the Nu River. The annual average temperature of the main producing areas is 8.2 ~ 11.6 ℃, the extreme minimum temperature is