石家庄市主要农作物单产变化分析

张翠华;张文煜;齐晓华;阎访

【期刊名称】《现代农业科技》

【年(卷),期】2012(000)020

【摘要】Based on annual yield data per unit of staple crops in Shijiazhuang from 1985 to 2010,variation,abrupt change and period of yield per unit of staple crops were analyzed.The results showed that fluctuation of yield per unit of most staple crops was the strongest in the 1990 s and the weakest in the 1980 s with vegetable′s fluctuation being the strongest and rice′s fluctuation being the weakest,and yield per unit of most staple crops had a obvious ascending trend with yield per unit of vegetable,wheat and peanut having the most obvious ascending trend from all times′change.Fluctuation of yield per unit of vegetable was the strongest and cotton′s was the weakest,and yield per unit of most staple crops had a obvious ascending trend with yield per unit of vegetable,wheat and peanut having the most obvious ascending trend from all annual change.Yield per unit of staple crops all had a obvious ascending trend which was mainly in the late 1980 s and the early 1990 s with corn′s,soybean′s and cotton′s climatic yield per unit occurring a abrupt change respectly.Climatic yield per unit of staple crops all had a around 7 lows oscillation period with period of crop′s and rice′s climatic yield per un it being maximal.%利用石家庄地区主要农作