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枣树具有适应性强,分布广,生长慢,寿命长,耐干旱瘠薄,耐低湿盐碱,耐风吹沙打,繁殖容易,收益早,发芽晚,落叶早,枝疏叶稀,透光良好等优良特点,是华北平原地区一个极为优良的农果间作树种。枣树进入农田,实行大面积的枣农间作,是我国沙区劳动人民长期以来与风、沙、旱、涝、碱等自然灾害作斗争的一个创举。全省枣农间作面积达110万亩,主要分布在河南的新郑、内黄、永城等县,其中以新郑、内黄栽培面积最大,株数最多,经验也很丰富。山东乐陵、茌聊、邹藤等县,以及河北、山西等地也有栽培。为了探讨枣农间作群体结构中光照强度的分配规律,研究其经济和防护效益,总结其栽
Jujube has the advantages of strong adaptability, wide distribution, slow growth, long life, drought-resistant infertility, low humidity resistance and saline-alkali resistance, wind-blown sand blasting, easy propagation, early yield, late germination, early deciduous leaves, Good and other excellent features, is an extremely good in North China Plain intercropping tree species. Jujube tree farmland into the implementation of large-scale jujube intercropping is a pioneering work of the working people in the sand area for a long time in the fight against natural disasters such as wind, sand, drought, waterlogging and alkali. The province of jujube farming area of 110 hectares, mainly in Henan Xinzheng, Neihuang, Yongcheng counties, including Xinzheng, Neihuang largest cultivated area, the largest number of trees, the experience is also very rich. Shandong Leling, chatting, Zouteng counties, as well as Hebei, Shanxi and other places also cultivated. In order to explore the distribution of jujube farming population structure of light intensity, study its economic and protective benefits, summed up its planted