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沙枣(Elaeagnus.angustifolia L.)又名桂香柳,系胡颓子科落叶乔木,主要分布在我国西北各省、区和华北的西北部.它的生命力极强,具有耐风沙(在沙随风走的流动沙区,能随沙埋而茁壮生长)、抗盐碱(在2—10‰的盐碱地上栽植,既能降低地下水位,又能减少盐分改良土壤),能忍受土壤及大气干旱(在年蒸发量为降雨量30倍,地表温度达70℃的沙漠里,也不至于被灼伤)、耐瘠薄(栽植既不需要灌溉施肥,也不必中耕除草,全凭发达的根系,产生根瘤菌来熟化土壤,生长成材),是营造防风固沙林、护岸固堤林和水土保持林的优良树种.由于它根系发达树干扭曲,枝叶茂盛,冠幅大,花香果肥,木材坚实致密,又是四旁绿化、庭园观赏及用材的好树种.
Elaeagnus angustifolia L., also known as cinnamon, is a deciduous tree of Elaeagnus, mainly distributed in the northwestern provinces and regions of Northwest China and the northwestern part of North China. It has extremely strong vitality and sand-tolerant Walk in the sand area, can grow well with the sand buried), anti-salinization (planted in 2-10 ‰ saline-alkali land, both to reduce the groundwater level, but also to reduce salt to improve the soil), can tolerate soil and atmospheric drought In the annual evaporation of 30 times the rainfall, the surface temperature of 70 ℃ in the desert, it will not be burned), resistant to infertility (neither planting irrigation and fertilization, nor the cultivation of weeds, the whole root system developed Rhizobium To cure the soil, grow into a material), is to create a good sand windbreak sand, bank protection embankment and soil and water conservation forest excellent tree species. Because of its well-developed trunk twist, lush foliage, large crown, fruity floral, solid and dense wood, Afforestation, garden ornamentation and timber good species.