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天山北坡降雪对葡萄越冬不同覆膜效果的影响[J]
Authors
中国科学院新疆生态与地理研究所
新疆奇台县气象局
+10 more
新疆阜康市林业局
新疆阜康市气象局
方桂娟
李奇
李翔
李银芳
沈青林
潘伯荣
阿迪力·吾彼尔
马洪亮
Publication date
1 January 2015
Publisher
Abstract
为了省工、省力,又能应对-37℃的极端最低气温和长期低温,对降雪晚而少的干冷年份和早而多的湿冷年份,进行了白塑料和黑塑料薄膜双层和单层覆盖的比较。结果表明:采用双层覆盖比单层优越。在积雪深度不足9cm,最低气温-22℃时,双层覆盖下的最低温度是-9.9℃,而单层覆盖则是-16.0℃,出现了减产,果穗变得小而轻、新枝条短等生产性能不良的影响。在塑膜覆盖中,采用白塑料薄膜较黑塑料薄膜优越。在干冷年份,黑塑膜上不容易保留雪被,单层覆盖-16℃时,而白塑膜因为有雪被覆盖,则是-13.2℃,而且白塑料薄膜价格比黑塑料薄膜便宜近一半
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Last time updated on 29/11/2016