ESTIMATION OF SOIL CARBON SEQUESTRATION AND FLUX THROUGH SOIL RESPIRATION UNDER MULI BAMBOO FORESTS IN NORTH-EAST INDIAAngom Sarjubala Devi and Kshetrimayum Suresh Singh
In the present study two different sites of Muli (Melocanna baccifera) bamboo forest were selected for estimation of rate of C- sequestration in soil and loss of C in the form of CO2through soil respiration. The two sites have different slope gradient and altitude. The site Lengpui have gentle slope gradient and low altitude whereas Kelsih have steep slope gradient and high altitude. C-stock in Lengpui was 50.25MgC/ha, out of which 1.18Mg/ha was lost as CO2 through soil respiration accounting to 2.34% of the total C-storage in soil. In the site Kelsih C-stock was 56.37 MgC/ha of which 1.36 Mg/ha was lost as CO2 through soil respiration accounting to 2.41% of total C-storage in soil. The rate of C-sequestration after deducting the loss through soil respiration was 7.54MgC/ha/yr in Lengpui and 6.10 MgC/ha/yr in Kelsih. In between the two sites although higher C-storage was observed, rate of C-sequestration was low in Kelsih. The role of slope gradient and altitude can be taken as an important factor for the difference in rate of C-sequestration. Moreover the high average rate of 6.81MgC/ha/yr of C-sequestration in the present study showed C-trading mechanism through plantation of Muli bamboo in degraded lands can be initiated by policymakers.
Enter your contact information below to receive full paper.