摘要
利用河南省119个气象观测站1971~2012年的逐日日照时数资料，基于ArcGIS空间分析模块，采用反距离权重插值方法，研究分析了河南省设施农业黄瓜寡照灾害的时空分布规律及风险分布特征。结果表明：河南省设施农业黄瓜轻度寡照次数总体偏高，各站累计次数均在100次以上；除东北部台前外，其余各地轻度寡照累计日数均在600 d以上。中度寡照次数总体偏低，河南南部是发生中度寡照相对多的区域。黄瓜遭受轻度寡照灾害的风险较高，而遭受中度和重度寡照的风险明显偏低。
Based on the daily sunshine duration of 119 meteorological stations in He’nan Province during 1971-2012,the temporal and spatial distribution and risk assessment of few sunshine disasters for cucumber of facility agriculture were researched and analyzed by using Inverse Distance Weighted interpolation methods under spatial analysis module of ArcGIS. The results showed that the accu-mulative frequencies of slightly few sunshine of cucumber were generally higher,and that at every station was more than 100 times. The cumulative days of slightly few sunshine for cucumber were more than 600 days except for Taiqian in the northeastern part of He’nan Province. The accumulative frequencies of moderately few sunshine were lower as a whole,and the moderately few sunshine of cucum-ber mainly appeared in southern He’nan. The risk of lightly few sunshine disasters for ccucumber in He’nan was higher,while that of moderately and severely few sunshine were lower.
出处
《干旱气象》
2015年第4期694-701,共8页
Journal of Arid Meteorology
基金
中国气象局河南省农业气象保障与应用技术重点开放实验室开放研究基金"河南省设施农业气象灾害指标建立与风险区划"(AMF201101)
公益性行业(气象)科研专项"设施农业气象灾害预警及防御关键技术"(GYHY201006028)共同资助
关键词
寡照
设施农业
黄瓜
时空分布
风险评价
few sunshine
facility agriculture
cucumber
temporal and spatial distribution
risk assessment
