青海云杉播种苗越冬试验

青海由于高寒、高海拔地区气温低,风大、干旱、气候变化剧烈,对青海云杉幼苗越冬危害很大。为了保证青海云杉幼苗安全越冬,应采取有效的越冬管理措施。本文通过地膜、苔藓、麦草三种不同覆盖物对青海云杉播种苗进行越冬试验,试验结果表明,三种覆盖物越冬成活率和对照均呈现显著差异。但从经济、材料来源等各方面综合评价,地膜覆盖越冬成本低,成活率高,越冬效果最好,应在群众育苗中得到推广。

The overwintering experiment of Picea crassifolia

Due to the low temperature in winter, high elevation areas, wind, drought, climate change dramatic, it has great harm to seedlings overwintering of Qinghai spruce. In order to ensure safety overwintering , the effective measures seedlings overwintering of Picea crassifolia should be taken. This winter test on Qinghai spruce seedlings through three different covering film, moss, wheat straw, the test results show that, the three kinds of covering the winter survival rate and the control showed significant difference. But from the comprehensive evaluation of all aspects of the economy, the source material, plastic film mulching winter low cost, high survival rate, winter best, should be popularized in mass.