摘要
基于黑龙江省10个农业气象观测站的1980—2008年地面观测田平行观测资料和逐日气象资料,运用气候倾向率、M-K检测和统计回归等方法,分析研究区表征气候变暖的主要气候要素的时空变化规律以及气候变暖对大豆种植的影响。结果表明:1980—2008年,研究区气候出现明显变暖趋势,年平均气温升高,热量增加,无霜期延长,且区域间存在差异,南部地区热量资源增加显著。大豆百粒重随9月平均气温升高而增加,随年平均气温升高而下降,表明秋季增温对大豆产量有正效应,而年平均气温的升高对大豆产量存在负作用。气候变暖对大豆生产的影响是利弊兼存,在调整种植布局时应予关注。
Based on the observational data at the agricultural field and the daily meteorological data at 10 weather stations from 1980 to 2008 in Heilongjiang province ,the temporal and spatial characteristics of main climatic ele- ments and the impact of climate warming on soybean were analyzed by methods of a climatic variability, a Mann- Kendall test and a statistical regression. The results show that the warming trend is significant in the study area from 1980 to 2008. Annual mean air temperature increases; frost-free season extends and has the difference be- tween different regions; heat resource increases significantly, especially in the south of Heilongjiang province. Hun- dred-grain weight of soybean increases with the increase of air temperature in September, while it decreases with the increase of annual mean air temperature. It suggests that the effect of warming in autumn on soybean yield is positive, while that of annual mean air temperature is negative. The effects of climatic warming on soybean yield are both advantages and disadvantages. Thus, it should be greatly considered for adjustment of planting pattern of soybean.
出处
《气象与环境学报》
2013年第2期96-100,共5页
Journal of Meteorology and Environment
基金
公益性行业(气象)科研专项(GYHY201106026)
公益性行业(气象)科研专项(GYHY200906019)共同资助
关键词
黑龙江省
大豆
气候变暖
产量
Heilongjiang province
Soybean
Climate warming
Yield
