农田污染对粮食生产的影响研究——以四川为例

作为农业生产的根本,农田质量对于粮食生产而言至关重要,因此农田污染的相关防治已经成为我国农业可持续发展、农产品安全以及我国生态环境保护的重要措施。目前我国农田污染主要特征为农田污染物成分复杂,农田污染程度不断扩大。同时由于农田污染导致土壤肥力下降进而导致相关农作物的产量以及品质不断下降。文章以四川省为例,探究农田污染对粮食生产的影响,结果发现,目前四川省农田污染主要来源于农药化肥的不合理使用,水体以及土壤受工业废水污染严重,畜牧业废弃物污染等。农田污染导致可耕种土地面积不断减少,粮食生产受到严重影响。基于此,该文针对四川省农田污染现状提出农田污染综合立体防控策略,并在此基础上通过合理规划农业生产,减少农药化肥使用量,提高生物防治在病虫害防治当中的比例等措施减少农田污染对粮食生产的影响,以期为我国农田保护以及粮食生产提供一定的理论以及政策依据。

THE EFFECT OF FARMLAND POLLUTION ON FOOD PRODUCTION*---TAKING SICHUANG PROVINCE AS AN EXAMPLE

As the fundamental of agricultural production, the quality of farmland is critical for food production, so the prevention and control of farmland pollution has become an important measure to achieve the sustainable devel-opment of agriculture, agro-ecological safety and environmental protection in China. At present the main features of the farmland pollution are as follows:complexity pollutant composition in farmland, the expanding level of farm-land pollution. At the same time, due to the pollution of farmland, the declined quality of agricultural soil fertility decreased thecrop yield and quality. Taking Sichuan province as an example, this paper explored the impact of farmland pollution on food production. The results showed that the main farmland pollution mainly came from the ir-rational use of pesticides and fertilizers, industrial waste water,and livestock waste pollution. Farmland pollution caused the declining of arable land area, and seriously affected the food production. Based on this, the comprehen-sive perspective prevention and control strategies were proposed such as rational planning by agricultural produc-tion, reducing the use of pesticide and fertilizer, improving the proportion of biological control in the pest control. This will provide a theoretical and policy basis for farmland protection and food production in China.