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为了有效利用气候资源,趋利避害,合理规划和发展陕南柑橘产业,在对2010年冬季陕南柑橘越冬冻害灾情调查的基础上,分析了当年柑橘越冬期冻害形成的气候背景;结合柑橘越冬期冻害指标及低温过程中的有害积寒,分析并验证了陕南柑橘越冬期冻害等级指标,提出了用低温过程中有害积寒划分陕南柑橘越冬冻害等级的相关指标;通过对安康、汉中2市12个柑橘种植县(区)2010年冬季及历史极端最低气温和低温过程有害积寒的分析,探讨了陕南柑橘越冬期冻害西部重于东部的原因,其分析结果与调查实情基本相符;最后从多个方面提出柑橘越冬期冻害的防御对策。
In order to make effective use of climatic resources, seek benefits and avoid disadvantages and rationally plan and develop the citrus industry in southern Shaanxi, the climatic background of the citrus winter frost damage in the current year was analyzed based on the investigation of winter frost damage in southern Shaanxi in 2010. Cold damage indicators overwintering period and harmful cold accumulation in the process of low temperature, analyzed and verified the index of frost damage degree of overwintering citrus in southern Shaanxi, and put forward the relevant indexes of freezing frost damage grade of southern citrus with the harmful cold in cold process; Hanzhong City, 12 citrus planting counties (districts) in 2010 winter and history of extreme minimum temperature and low temperature harmful cold accumulation analysis of the Southern Shaanxi overwinter frost damage western heavier than the eastern part of the analysis results and the actual situation of the investigation Match; Finally, from many aspects of the citrus winter frost damage prevention measures.