Effect of rice cultivar on greenhouse-gas emissions from rice–fish co-culture
Kexin Xie, Mengjie Wang, Xiaodan Wang, Fengbo Li, Chunchun Xu, Jinfei Feng, Fuping Fang
Abstract
In aquaculture, co-culturing rice with fish may mitigate greenhouse-gas emissions. In this study, co-culture of four rice cultivars in a laboratory-scale rice–fish system reduced CH4 and N2O emissions relative to fish monoculture. Differences in CH4 and N2O emissions among rice cultivars primarily stem from the differential effects of rice plants on plant-mediated CH4 transport, CH4 oxidation and nitrogen absorption.
Topics & Concepts
MonocultureCultivarGreenhouse gasAgronomyRice plantGreenhouseEnvironmental scienceOryza sativaBiologyEcologyGeneBiochemistryAgricultural Systems and PracticesInnovations in Aquaponics and Hydroponics SystemsAquaculture Nutrition and Growth