Soil CO2 evolution in Florida slash pine plantations. II. Importance of root respiration
- 1 April 1987
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Forest Research
- Vol. 17 (4) , 330-333
- https://doi.org/10.1139/x87-055
Abstract
Respiration of live roots was the single largest contributor to soil CO2 evolution in two mature slash pine (Pinus elliotti) plantations. Root respiration accounted for 51% of soil CO2 evolution at the 9-year-old plantation and 62% at the 29-year-old plantation. Additional estimates, calculated from data recorded from two small trenched plot sites at the 29-year-old plantation and based on possible variations in initial root biomass and subsequent decomposition rates, also averaged 62% of soil CO2 evolution. Specific root respiration averaged 0.40 g .cntdot. g-1 .cntdot. year-1, varying from 0.34 to 1.70 g .cntdot. g-1 .cntdot. year-1. Plots with larger proportions of fine roots had faster soil CO2 evolution rates.This publication has 5 references indexed in Scilit:
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