【摘要】 造林成活率和保存率的高低直接关系到造林的成败。在干旱半干旱沙漠地区制约樟子松造林成活率的因素,除了苗木质量、苗龄、造林季节、造林密度和采用先进适用的造林技术外,水分条件尤为重要。随着环境的进一步恶化,水资源的日益减少,水分不足是榆林沙区影响樟子松造林成活率及其生长的主要因子。笔者采用对比试验的研究方法,充分利用毛细渗灌节水技术的保水保墒、持续稳定平衡水分的功能,在榆林沙区常用绿化造林树种樟子松造林中进行了试验研究。试验结果表明,毛细渗灌节水技术不但能提高造林成活率和保存率,而且能够促进其生长发育,增强植物的抗旱保湿、改善和优化植物的生长环境,增强苗木的抗逆性,提高苗木成活率和保存率。更多还原

【Abstract】 The forestation survival rate and conservancy rate of high and low relate to a forestation directly of success or failure. Forestation in arid and semiarid desert region check and supervision live the factor of rate, in addition to seedling quality, seedling age, forestation season, forestation density and adoption advanced forestation technique, water condition is importance also. Along with environment of further worsen, water resources reduces increasingly, water shortage is influence forestation become survival rate and its growth of main factor. Experiment a research originally Be making use of the hair infuse the function that saving water protects water and humidity technically, keeps on stabilizing equilibrium water well. As a result, the hair infusing save water technique can raise forestation not only survival rate and conservancy rate, and can promote its growth develop, strengthen plant of anti-drought hydration, improvement with excellent turn vegetative growth environment, strengthen the anti-negative of seedling wood, raise a seedling wood live rate and conservancy rate.更多还原