摘要
本文采用直线滑动平均法求得西南地区各代表点水稻的趋势产量,进而分解出相应地区的气候产量。再用气候产量与生长发育期内生物时段的光、热、水等气候要素进行积分回归分析,确立了产量预报的积分回归经验公式和各气候要素影响产量的时间函数a_j(t),从而揭示了水稻产量和各气候要素分布状况的定量关系,为异常气候影响水稻的对策提出依据。
The tendency yield of each representative area in Southwest China was obtained through variouslinear sliding averages,and the climate yields of each area were derived.Based on integral regressionanalysis of the climate yields and the climatic factors such as light.heat and water during each biologi-cal stage of the growth period,empirical formulae of the integral regression for yield prediction and thetime function A_1(?)of the yield affected by various climatic factors were established,thus revealing thequantitative relation between rice yield and the dis(?)ibution of the climatic factors and providing a basisfor strate gical decision of the measures to be taken to reduce the detrimental effects of abnormal cli-mate on rice.
出处
《西南农业大学学报（自然科学版）》
CSCD
1991年第3期275-279,共5页
Journal of Southwest Agricultural University
基金
国家自然科学基金
关键词
水稻
产量
气候
预测
lowland rice
yield forecasting
climatic effects
climatic anomalies
