气候变化对盘锦自然物候及农作物的影响分析

利用盘锦地区近50 a(1960—2009年)气温、降水气象观测资料及农业气象观测记录,对盘锦地区气候变化对自然物候及农作物的影响进行分析。结果表明,盘锦地区呈现气温升高、降水略减少的气候变化趋势;自然物候与农作物对气候变暖反应敏感,春季物候期提前,秋季物候期推后,并且推后的幅度较春季提前的幅度大;近30 a盘锦水稻适宜生长期延长8 d左右,产量呈逐年增加的趋势;近40 a盘锦玉米适宜播期提前13 d左右。

Impacts of Climatic Change on Phenophases and Agricultural Crops in Panjin

Based on nearly 50 years 1960-2009 temperature, precipitation and agrometeorological observation records of Panjin, this paper did an analysis on the impact to phenology and crops caused by changes of climate in Panjin City. The results show that pre- cipitation reduced slightly,and temperature elevated; phenology and crops react sensitively to climate changes, phenological period shift early in spring and later in autumn and the shifting is bigger in spring than in autumn; in recent 30 years the suitable growth period of rice in Panjin is about 8 days longer and shows a trend of growing; in recent 40 years the sowing period of corn is about 13 days in advance.