四川水稻不同生育期干旱与产量灰色关联分析

邓国卫, 孙俊, 赖江, 张玲

Grey correlation analysis of drought and yield at different growth stages of rice in Sichuan Province

DENG Guowei, SUN Jun, LAI Jiang, ZHANG Ling

表5 Proportion of counties with each order of grey correlation degree between drought and rice yield at different growth stages to total counties of different planting regions of Sichuan Province 单位：%

Tab.5

稻作区	关联度排序	移栽—分蘖期	分蘖—拔节期	拔节—孕穗期	孕穗—抽穗期	抽穗—成熟期
盆北深丘低山区	1	90	10	0	0	0
	2	10	70	0	20	0
	3	0	20	20	50	10
	4	0	0	40	10	50
	5	0	0	40	20	40
盆东平行岭谷区	1	80	0	0	20	0
	2	0	40	0	20	40
	3	20	20	0	40	20
	4	0	40	0	20	40
	5	0	0	100	0	0
盆中丘陵区	1	37	56	4	0	4
	2	56	37	4	4	0
	3	7	4	48	22	19
	4	0	0	19	22	59
	5	0	4	26	52	19
成都平原区	1	20	80	0	0	0
	2	80	20	0	0	0
	3	0	0	100	0	0
	4	0	0	0	60	40
	5	0	0	0	40	60
盆南丘陵低山区	1	91	0	0	0	9
	2	9	55	0	0	36
	3	0	45	55	0	0
	4	0	0	36	18	45
	5	0	0	9	82	9
川西南山地半湿润区	1	60	13	7	20	0
	2	27	33	7	27	7
	3	7	27	40	20	7
	4	0	13	27	27	33
	5	7	13	20	7	53
川西南山地干热河谷区	1	100	0	0	0	0
	2	0	40	20	20	20
	3	0	40	0	20	40
	4	0	0	40	40	20
	5	0	20	40	20	20
稻作区	1	62	28	3	5	3
	2	32	42	4	12	10
	3	5	19	41	22	13
	4	0	5	24	24	46
	5	1	5	28	37	28