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林木良种化是提高林木抗性和质量,增加林木生长量,实现林业经营集约化的一项重要手段.在新疆灌溉林业条件下,因地制宜,选育得当,更可以发挥林木良种的特性,从而达到预期的经济目的.这一点,在新疆国营农场生产实践中,已日益被人们所重视.新疆农垦团场垦荒造林三十年,在改善荒漠生态环境,减少风沙、干旱、盐碱等灾害,保障农业稳产高产,提供生产和生活用材等方面,发挥了积极的作用.但是,过去植树造林中存在不少问题,最突出的问题之一就是树种单一,造林树种百分之八十以上是杨树.在南疆,主要是新疆杨、箭杆杨和银白杨;北疆则是钻天杨和箭杆杨占绝对多数.树种单带来的弊病,已明显地表现出来.钻天杨在新疆国营农场造林史上是有贡献的.它繁殖容易,造林成活率高,适应性也很强;但在防护林中成材
Improvement of forest tree quality is an important means to improve tree resistance and quality, increase tree growth, and achieve intensive forestry management.Under the conditions of irrigated forestry in Xinjiang, due to local conditions, properly breeding, but also can play the characteristics of forest seed varieties, so as to achieve Expected economic purposes.This point has been paid more and more attention in the production practice of state-owned farms in Xinjiang.Three years of land reclamation and afforestation in Xinjiang Land Reclamation Park have been in the process of improving the desert ecological environment and reducing windstorm, drought, salinization and other disasters, Agriculture has produced a stable and high yield and provided materials for production and living, etc. However, in the past, there were many problems in tree planting and afforestation. One of the most prominent problems was that the tree species were single. More than 80 percent of tree species for afforestation were poplars In southern Xinjiang, the main species are Xinjiang poplar, arrowhead poplar and poplar; the northern part of Populus is poplar and poplar account for the absolute majority. The drawbacks caused by the species list have been clearly demonstrated. Contribute .It reproduce easily, afforestation survival rate, adaptability is also strong; but in the shelter