论文部分内容阅读
在不同土壤条件下,对桑树、榆树、刺槐、白蜡、柳树、杨树等6种阔叶树裸根苗雨季造林成活率进行了比较研究。结果表明,桑树、榆树具有很强的耐干旱能力,其裸根苗雨季造林成活率达90%以上,是荒山、荒滩绿化、美化雨季造林的适宜树种。刺槐、柳树、杨树对干旱的耐受能力较差,其裸根苗不适宜雨季造林。白蜡对土壤水分的依赖性较大,在土壤水分条件较好的情况下,其裸根苗也可用于雨季造林。
Under different soil conditions, the afforestation survival rate of bare-rooted seedlings of six broad-leaved tree species, mulberry, elm, acacia, ash, willow and poplar, were compared. The results showed that mulberry tree and elm tree had strong drought resistance ability. The survival rate of bare root seedling rainy season was more than 90%. It was the suitable tree species for afforestation of barren hills and wasteland and beautification rainy season. Robinia pseudoacacia, willow, poplar tolerance to drought is poor, the naked root seedlings are not suitable for rainy season afforestation. Ash is more dependent on soil moisture, and under the condition of better soil moisture, bare root seedlings can also be used for rainy season afforestation.