Abstract
This study aimed to separate the respective contributions of root and microbial respiration to soil respiration in a rape field in Southwest China. The soil respiration was measured with a closed chamber technique and a regression method was used to apportion root and microbial respiration. Microbial and root respiration ranged from 70.67 to 183.77 mg CO<sub>2</sub>/m<sup>2</sup>/h and 21.99 to 193.09 mg CO<sub>2</sub>/m<sup>2</sup>/h, averaged 127.16 and 116.66 mg CO<sub>2</sub>/m<sup>2</sup>/h during the rape growing season, respectively. Root respiration coefficient ranged from 0.41 to 5.39 mg C-CO<sub>2</sub>/g C/h and was negatively correlated with root/shoot ratio, aboveground and belowground biomass, but positively correlated with root N content. The contribution of root respiration to soil respiration averaged 44.2%, ranging from 14.5% to 62.62%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
