Most of the biological processes in any soil proceed through enzyme regulated processes. Activities of soil enzymes indicate the soil biological health and it has significant impact on soil fertility improvement. The soil samples from major land uses systems viz., forests (both natural and manmade), coffee, mulberry, coconut, vegetable, potato and paddy land uses systems, were analyzed for soil organic carbon (SOC) and categorized as low (< 0.5 %), medium (0.5-0.75 %) and high (> 0.75 %) SOC soils. Similar soil samples were analyzed for biological properties i.e, soil enzyme activities for each category. Dehydrogenase and urease activity were observed higher in soils with higher organic matter status, with trend as low SOC< medium SOC< high SOC. And similar trend was observed for acid and alkaline phosphatase activities.

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