家畜生态学报2026，Vol.47Issue(4)：101-109,9.DOI:10.3969/j.issn.1673-1182.2026.04.014
三种稻渔生态种养对稻田土壤化学性质和酶活性的影响
Effects of Three Rice-Fish Co-culture Systems on Chemical Properties and Enzyme Activities in Paddy Soil
摘要
Abstract
The rice-fish co-culture system is a type of sustainable ecological agriculture promoted under China's 14th Five-Year National Fishery Development Plan.To investigate the temporal changes in soil physicochemical properties and enzyme activities across different growth stages in various ecological farm-ing systems and to enrich the fundamental theory of rice-fish co-culture system,this study evaluated the impacts of three rice-fish co-culture systems in Chongqing on paddy soil fertility.The evaluation was based on the measurement of 12 indicators related to soil fertility and health during different rice growth stages.The results showed that the soil pH under three rice-fish co-culture systems was significantly higher(P＜0.05)than that of the control group during all stages of rice growth.However,the soil organic matter,to-tal nitrogen,alkaline hydrolysable nitrogen,available potassium,and soil alkaline phosphatase activity were significantly lower(P＜0.05)than that of the control group in most periods.Further analysis re-vealed a decline in soil fertility and nutrient levels across all three systems.The most severe delince was observed in the rice-turtle-duck group,followed by the rice-turtle group,while the rice-shrimp group ex-hibited a relatively milder decline.These results suggest that rice-fish co-culture systems with low stocking densities and limited feed input may lead to varying degrees of soil fertility depletion.It is recommended to appropriately increase animal stocking densities and feed input,and to supplement organic fertilizers ac-cording to the nutritional demands of rice at different growth stages,thereby promoting water and nutrient balance in paddy fields.关键词
稻渔生态种养殖模式/稻田/土壤化学性质/酶活性Key words
rice-fish co-culture system/paddy field/soil chemical properties/enzyme activity分类
农业科技引用本文复制引用
林小钢,孟文旭,陈卓,李芹,郑永华,唐洪玉..三种稻渔生态种养对稻田土壤化学性质和酶活性的影响[J].家畜生态学报,2026,47(4):101-109,9.基金项目
重庆市水产科技创新联盟资助(CQFTIU202502-3) （CQFTIU202502-3）
重庆市现代山地特色高效农业产业技术体系生态渔业创新团队专项资助(合2025067-4) （合2025067-4）
