2023, Vol. 8, Special Issue 5

Agroforestry is a combination of practicing agriculture and forestry together on the same unit of land. Eucalyptus tereticornis (family – Myrtaceae) is highly use full and important economic species in commercial forestry due to its fast growing and short rotation period. The present investigation was conducted in Eucalyptus tereticornis and wheat based agroforestry system with different weed control methods to find out correlation of CO2 equivalent C stock with various biomass of agroforestry component such as wheat biomass, weed biomass, fresh bole wt of tree, above tree biomass, total tree biomass, total biomass (tree + crop) under agroforestry system. In experiment plot 5 major weeds was found with wheat crop. The correlation analysis revealed that the biomass of different component with CO2 equivalent C stock (t ha^-1) showed positive correlation during both the year and pooled analysis. It indicated that total biomass (Tree + Crop) had highest positive correlation during first year (0.885) and pooled mean (0.745) whereas, above tree biomass and total tree biomass (0.765 and 0.765) showed higher positive correlation equally during second year. The linear increase in CO2 equivalent C stock was predicted with wheat biomass, weed biomass, fresh bole wt, above tree biomass, total tree biomass, total biomass (tree + crop) and vegetation carbon pool t ha^-1. The increase in CO2 equivalent carbon stock could be predicted by 0.240 and 2.804, 2.148 and 4.758, 1.883 and 1.149, 1.818 and 1.185, 1.443 and 0.940, 2.635 and 1.770, 3.670 and 3.150 t ha^-1 during both the year under wheat and Eucalyptus teretocornis based agroforestry system.