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多年来,人们对水旱轮作的增产效果和经济效益有很多研究,但对它的生态效益研究不多。其实,水旱轮作之所以增产,产生巨大的经济效益,其根源还是水旱轮作所带来的良好的生态效益所致。本文从生态效应的角度,初步探讨了水旱轮作的增产原因。一、综合治理“水袋子”,大力开展水旱轮作1.开展水旱轮作,促进粮棉高产稳产全县现有耕地7.087×10~4ha,其中稻田4.197×10~4ha;棉田1.607×10~4ha。利用本县丰富的水资源(年客水量1.36×10~9m~3),根据农田生产线基本平行于水位线的特点,1970年开始实行水旱轮作,随着水利条件的逐
Over the years, there have been many studies on the yield-increasing effects and economic benefits of crop rotation and precipitation, but few studies have done on its ecological benefits. In fact, the reason why the increase of crop rotation and water yield has huge economic benefits stems from the good ecological benefits brought by the rotation and precipitation. This article from the perspective of ecological effects, initially discussed the reasons for the increase in production of water and drought rotation. First, the comprehensive management of “water bag”, vigorously carry out the rotation and drought 1. To carry out drought and water rotation, grain and cotton to promote high-yielding County existing farmland 7.087 × 10 ~ 4ha, of which 4.197 × 10 ~ 4ha rice fields; cotton 1.607 × 10 ~ 4ha. Using the county’s abundant water resources (annual passenger water 1.36 × 10 ~ 9m ~ 3), according to the characteristics of farmland production line is basically parallel to the water level line, started in 1970, drought and drought rotation, with the water conditions by the