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四川盆地交通发达,自然条件优越,早在几千年前,劳动人民就在此创建了较为发达的农业.因有都江堰水利的灌溉,盆地西部平原作物每年可以稳产保收,故有“天府”之称.川中盆地和川东平行岭谷区,常有灾害出现,使作物产量极不稳定,粮食亩产变幅在300—1200市斤之间.为稳定和提高生物产量,不少学者多从生态平衡和良种选育方面进行研究.鉴于生物产量的提高,与植物生态因子之间有着相互促进或相互制约的应变关系,故当生态因素有利于光合作用时,植物在生态平衡中,就会使产量处于较高的水平.
Due to the developed irrigation system in Sichuan Basin and the superior natural conditions, the working people founded a relatively developed agriculture here a few thousand years ago. Due to the irrigation of water conservancy in Dujiangyan, the plain crops in the western basin of the basin can be steadily received annually, Said.Chuanzhong BasinAnd the East Ridge parallel to the East Valley, there are often disasters, the crop yield is extremely unstable, the grain yield per mu in the 300-1200 jin between.In order to stabilize and improve biological production, many scholars and more From the aspect of ecological balance and seed selection, in view of the increase of biological yield, there is a strain relationship between plant ecological factors and mutual promotion or mutual restriction. Therefore, when ecological factors are conducive to photosynthesis, Will yield at a high level.