摘要
分析了近60年(1932—1989)天津气温与降水的变化,指出天津的增暖与北半球的增暖相当一致,冬季最明显;在80年代全球增暖期,天津夏季降水减少,春季与初夏降水增多;从气温和降水演变的周期性及全球增暖的背景分析,华北未来10年仍将持续温暖而干旱的气候。气候变暖对天津地区小麦和玉米的增产有利,而干旱使水稻的增产受到限制,夏季的增温与干旱对大豆增产不利。
The climatic change in Tianjin and its influence on grain production are studied by using thetemperature and rainfall data during 1932—1989.The results show that the warming in Tianjincoincides with that in the Northern Hemisphere,and the warming in winter is more obvious.Therainfall in Tianjin was increased in spring and early summer,while decreased in mid summer dur-ing the global warming period of 1980s.The warming climate in 1980s was very favourable to the yeild of winter wheat and maize,but unfavourable to the soybean in Tianjin.The drought climate in 1980s was unfavourable to thegrowth of rice,either in sown area or in yield per unit area.
出处
《应用气象学报》
CSCD
北大核心
1993年第1期122-126,共5页
Journal of Applied Meteorological Science
基金
天津市科委软科学基金
关键词
气候变暖
夏季干旱
粮食生产
Climatic warming
Summer drought
Grain production
