Estimating Carbon Capture Potential of Fallow Weeds in Rice Cropping Systems  

作　　者：Ge Chen Yuling Kang Fangbo Cao Jiana Chen Min Huang 

机构地区：[1]Rice and Product Ecophysiology,Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology,Hunan Agricultural University,Changsha,410125,China [2]Institute of Agroecology and Environment,Yueyang Academy of Agricultural Sciences,Yueyang,414022,China

出　　处：《Phyton-International Journal of Experimental Botany》2023年第1期71-77,共7页国际实验植物学杂志（英文）

基　　金：supported by the National Key R&D Program of China(2017YFD0301503).

摘　　要：Weeds occurred during the fallow season can well perform the function of carbon(C)capture due to receiving little human disturbance.This study aimed to evaluate the C capture potential of fallow weeds in rice(Oryza sativa L.)cropping systems.A six-region,two-year on-farm investigation and a three-year tillage experiment were conducted to estimate C capture in fallow weeds in rice cropping systems.The on-farm investigation showed that the average mean C capture by fallow weeds across six regions and two years reached 112 g m^(-2).The tillage experiment indicated that no-tillage practices increased C capture by fallow weeds by 80%on average as compared with conventional tillage.The results of this study not only contribute to an understanding of C capture potential of fallow weeds in rice cropping systems,but also provide a reference for including fallow weeds in the estimation of vegetative C sink.

关 键 词：Carbon cycling fallow weeds NO-TILLAGE rice cropping system vegetative carbon sink 

分 类 号：S511[农业科学—作物学]