吕梁现有枣林面积14万hm2,80%的品种为原始木枣,尤其是黄河滩涂枣林由于年代久远,枣树老龄化程度加重,品质较差,产量有下降趋势,而一些正值盛果期的枣树,则由于疏于管理,树不成形,树势衰弱,产量低,品质差。为此,我们从2009-2011年用了3年时间,对吕梁枣区中、老龄枣树进行截干换冠技术改造。 Luliang jujube forest area of ​​140,000 hm2, 80% of the varieties of the original jujube, especially the Yellow River beach Jujube forest age, jujube aging degree worse, poor quality, production decline, and some positive Sheng Fruit jujube, then due to neglect of management, the tree does not form, Shusu weak, low yield, poor quality. To this end, we spent from 2009-2011 3 years, on the Luliang jujube district, aged jujube tree trunk cut crown technology transformation.