摘要
本文针对麦收期小麦与大豆需水矛盾及平衡问题,采用正交多项式、相关分析及模糊模式判别等方法进行了综合分析,找出了两种作物需水条件交叉季节(7,8月),降水适宜与不适宜的各种情况指标,制定了对两种作物均有利的平衡指标,并建立了此时段降水对两种作物年景丰、平、歉的判别模式,为开展麦收期气象服务提供了科学的依据。
There are contradictions in the water necessity of wheat and soybean in the period of wheat harvest. The water balance problems were comprehensively analysed with the methods of cross multinomial, relation analysis and fuzzy model distinguishment. The favourable and harmful precipitation. indices were found in the period that two crops need water (July and August). The water balance index for both crops was determined and the distinguishment models of pre- cipitation conditions for the favourable, common and disadvantageous years were established.
出处
《沈阳农业大学学报》
CAS
CSCD
1992年第Z05期51-55,共5页
Journal of Shenyang Agricultural University
关键词
小麦
大豆
收获期
水分
wheat harvesting period
water balance
precipitation
model distinguishment
