CAJ | 학술논문

循环农业的生态环境效应主要体现在节肥、节药、抑草、改善土壤和水体等方面。文章以＂稻-鱼＂种养结合循环农业模式为例,在从理论和技术角度分析循环农业的节肥、节药的生态环境效应的基础上,运用环境经济学理论和分析框架,进一步揭示＂稻—鱼＂种养结合循环农业模式下稻田生态系统中土壤和水体的改善以及有害生物的减少,农户减少了化肥和农药的使用量,形成了鱼类对化肥和农药的替代关系,因而其环境负效应小于常规水稻生产模式,具有相对较高的生态环境效益。
순배농업적생태배경효응주요체현재절비、절약、억초、개선토양화수체등방면。문장이＂도-어＂충양결합순배농업모식위례,재종이론화기술각도분석순배농업적절비、절약적생태배경효응적기출상,운용배경경제학이론화분석광가,진일보게시＂도—어＂충양결합순배농업모식하도전생태계통중토양화수체적개선이급유해생물적감소,농호감소료화비화농약적사용량,형성료어류대화비화농약적체대관계,인이기배경부효응소우상규수도생산모식,구유상대교고적생태배경효익。
The obvious eco-environment effects of circular agriculture mostly are reflected in the fertilizer and pesticide saving,grass curbing,soil and water improving.Based on the analyzing circular agriculture＇s eco-environment effects of fertilizer and pesticide saving from perspective of theory and technology,taking the ＂Paddy-fish＂ mode as example,and within the analysis framework of environmental economics,this paper further reveals that in the paddyfield ecosystem of paddy-fish mode,the soil and water is improved and harmful organisms are reduced,and farmers significantly reduce the dosage of fertilizer and pesticide use,thus,the substitute relation between the fish and fertilizer and pesticide is formed,and therefore,its environmental negative effect is smaller than conventional rice planting mode,and has the relatively higher eco-environmental benefit.