【作者】 林新坚； 张伟光； 张辉； 蔡文华； 兰忠明； 纪文彬；

【Author】 Lin Xin-Jian~1 Zhang Wei-Guang~1 Zhang Hui~1 Cai Wen-Hua~2 Lan Zhong-Ming~1 Ji Wen-Bin~3 (1.Soil and Fertilizer Institute,Fujian Academy of Agricultural Science,Fuzhou,Fujian 350013,China;2.Fujian Institute of Meteorological Sciences,Fuzhou,Fujian 350001,China;3.Fuding Science and Technique Bureau,Fuding,Fujian 355200,china)

【机构】 福建省农业科学院土壤肥料研究所； 福建省气象科学研究所； 福鼎市科学技术局；

【摘要】 对六种培土的防冻措施进行最低温度的对比观测。结果表明:培土30cm 和培土20cm 后再加薄膜、灌水、盖草等措施培土表面的平均温度、最低温度和5～20cm 的土温都比光培土的高;晴天同高度光培土 20、30cm 的地表面比不采取防冻措施的最低气温平均高0.2～0.3℃,其他四种措施比不采取防冻措施的平均高1.2～2.1℃,可见这些防冻措施对于保护果树主干的基部有益;晴天树下离土堆表面40cm 处的最低温度,除了培土20cm 加盖薄膜比不采取防冻措施的平均高0.7℃外,而其他的措施都不起增温作用。更多还原

【Abstract】 Six measures to earth up were applied for comparison to see the extreme low temperature difference. The study indicated that earthing up 30cm tall or earthing up 20cm plus filming or irrigating or covered with grass,those measures showed higher average temperature and the extreme low temperature and soil temperature under 5～20cm soil surface than only earthing up,in sunny day in the same height the measure only earthing up 20cm or 30cm showed 0.2～0.3℃ in average higher the extreme low temperature than the contrast(Nothing be done for preventing frostbite),another four measures showed 1.2～2.1℃ in average higher the extreme low temperature than the contrast,which is to say,the measures preventing frostbite benefit for protecting the base of the stem;in sunny day the temperature of the place above 40cm higher than the hillock no measures made the temperature increasing than the contrast but earthing up 20cm showed 0.7℃ in average higher.更多还原