Emission of CO from Soil in a Subtropical Mixed Oak Forest of Manipur, Northeastern India

N Bijayalaxmi Devi, P S Yadava

Abstract


Emission of CO from soil and the effect of abiotic variables on the rate of soil respiration were studied in two foreststands of a subtropical mixed oak forest in the Langol Hills (24o 45’ N; and 93o 55’ E; at altitudes from 780 to 9102 m above msl) using alkali absorption method. The CO emission rate was the lowest in winter (November–February;2 2 149±4.82 mg CO m-2 hr-1; 138.49±3.3 mg CO m-2 hr-1) and the highest in the rainy season (June–October;2 2 250.94±5.64 mg CO m-2 hr-1; 220.48±7.8 mg CO m-2 hr-1) in both study stands. This paper demonstrates that2 soil emission of CO is strongly influenced by seasons and it has been correlated positively with the measured abioticvariables.

Keywords


Emission, Forest soil, Manipur, Seasons, Abiotic variables

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