摘要
【目的】通过掌握霜冻发生的大致时间及低温持续规律,结合霜冻预报、预警,提前根据天气条件,把握酿酒葡萄果园防霜的最佳时机,选择合适的防霜技术方法,保护葡萄嫩芽、新梢及幼叶免受伤害,提高防霜的实际效果.【方法】利用宁夏贺兰山东麓4个酿酒葡萄种植区2008~2016年4~5月逐小时最低气温资料,采用统计方法,分析了宁夏贺兰山东麓酿酒葡萄种植区霜冻日最低温度出现时间规律及不同程度低温持续时间特征.【结果】2008~2016年贺兰山东麓红寺堡酿酒葡萄种植区出现的霜冻日最多,其他3个种植区出现次数相差不大;霜冻日最低气温出现时间分布在14个时次内,但集中出现在凌晨5∶00~7∶00,在7∶00出现最多.由于影响系统、地形等影响,霜冻过程都较为复杂,不同地区降温幅度和不同低温强度持续时间也有差异,各种植区霜冻日0℃以下低温持续时间在(0~4)h出现次数最多,之后随着持续时间的延长霜冻日数减少;除石嘴山以外的种植区霜冻日-2℃以下低温持续时间在(2~6)h出现次数最多,之后随着持续时间的延长霜冻日数减少;达到重度霜冻的次数明显减少,红寺堡最多为11次,大多重度霜冻日-4℃以下低温持续时间都在8 h以内.
【Objective】In order to predict the frost occurring time and duration for early warming of frost disaster in wine grape growing area in eastern Helan Mountain.【Method】The data of daily minimum temperature with one hour interval in 4 wine grape growing areas from April to May in 2008 to 2016 were used to analyze the frost occurring time and duration patterns.【Result】The frost days were the most in Hongsipu region,and the rest 3 areas showed little difference;The minimum temperature in frost days occurred in 14 time durations,but mainly concentrated from 5∶00 to 7∶00,and 7∶00 was the most.The below 0℃temperature duration mostly continued at a range of 0 to 4 hours,and frost days reduced along with the frost duration.The below-2℃temperature duration mostly continued at a range of 2 to 6 hours,and frost days reduced along with the frost duration in 3 growing raeas except Shizuishan.The heavy frost days decreased significantly,it was 11 times in Hongsipu which was the most.The below-4℃minimum temperature duration in the most heavy frost days lasted less than 8 hours.
作者
杨洋
张磊
陈豫英
郭晓雷
李红英
YANG Yang;ZHANG Lei;CHEN Yu-ying;GUO Xiao-lei;LI Hong-ying(Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions,China Meteorological Administration,Ningxia Key Laboratory of Meteorological Disaster Prevention and Reduction,Yinchuan 750002,China)
出处
《甘肃农业大学学报》
CAS
CSCD
北大核心
2019年第6期149-154,共6页
Journal of Gansu Agricultural University
基金
国家自然科学基金项目(41465004)
宁夏回族自治区重点研发计划(科技惠民)项目(2016KJHM128)
关键词
酿酒葡萄
春霜冻
低温
持续时间
规律
宁夏
wine grape
spring frost
minimal temperature
duration
pattern
Ningxia
