介绍宁夏新引进的两个造林树种

Introduction of Two New Afforestation Species in Ningxia

宁夏引黄灌区有超过50%的土壤存在次生盐碱化问题,使土壤生态环境变得恶劣,土地开发利用难度比较大。而且,当地用于盐碱地造林的树种比较少,适宜重度盐碱地造林的乔木树种更少,导致造林成效低下,严重制约着林业生产的发展。因此,引进“鲁柽1号”中国柽柳和“9901”旱柳耐盐碱树种,繁育优质苗木,开展栽培技术研究。

More than half of the soils in Ningxia Yellow River irrigation area have the problem of secondary salinization,which makes the soil ecological environment worse and makes the development and utilization more difficult.Moreover,there are fewer kinds of trees that can be used for afforestation in saline-alkali land,especially in severe saline-alkali land,which results in low afforestation efficiency and seriously restricts the development of forestry production.Therefore,the key measures to solve these problems are to introduce Saline-Alkali-Tolerant species of Tamarix chinensis'Lucheng Yihao'and Salix matsudana'9901',to breed high-quality seedlings and to carry out cultivation techniques.