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Discussion on Climate Suitability Indexes and Meteorological Services of Allium chinense and Capsicum annuum L.in Xiangyin County in South Dongting Lake Area of Hunan Province
Author(s): 
Pages: 12-16,19
Year: Issue:  9
Journal: Rain Fed Crops

Keyword:  藠头辣椒气候适宜指标气象灾害;
Abstract: 利用湖南省湘阴国家基本气象站近45年(1971-2015年)的气候资料,分析了湖南省南洞庭湖区湘阴县藠头与辣椒气象影响因素.据分析,近年黑白霜冻、春寒或倒春寒、5月低温、连阴雨在减弱,冬酣程度略在减弱;但冰冻灾害略增多、增强,高温热害发生频率提高,干旱频率和重度干旱频率都在增加.通过对80%稳定通过≥10℃、≥15℃C、≥20℃的初日和初终日期统计分析,发现因气候变暖影响,早春相对以前温暖些.藠头和辣椒生产防低温、冷害、寒害和湿害气候有明显好转,但藠头苗期防冻害,辣椒采收期防高温、干旱等单一或复合灾害仍不能忽视.
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