摘要
本文对黑龙江省近43a初霜冻趋势时空特征进行了分析,在空间上,全省平均每10a向北推移1～2d;在时间上,年变化推迟0.094d,43a来平均推迟约4d。根据黑龙江省各主要作物成熟期的时空分布情况,讨论了初霜冻对主要作物安全成熟的影响。
The article analyzes characteristics of early frost trend in space and in time. In space ,an average of 1-2 days is shifted northward per 10a .In time,0.094 day is delayed per year and an average of 4 days are delayed during past 43a. Based on spatio-temporal distribution of most crops＂ mature period in Heilongjiang Province, influences of early frost on most crops＂ safety maturity are discussed.
出处
《黑龙江气象》
2005年第4期4-6,共3页
Heilongjiang Meteorology
关键词
初霜冻
趋势
成熟期
影响
early frost
trend
maturity date
influence
