摘要 : The present investigation deals with the comparative account of ground flora biological diversity under naturally occurring ecotone, teak and sal dominant forest of M.P. The number of ground flora species under econtone zone (Teak... 展开 The present investigation deals with the comparative account of ground flora biological diversity under naturally occurring ecotone, teak and sal dominant forest of M.P. The number of ground flora species under econtone zone (Teak & Sal dominated forests) were 14 m², 14 m² and 11 m² respectively. Regeneration of shorea robusta and other herb/grass species were found to be less in under sal dominated forests in M.P. The distribution pattern of different ground flora species were equally either contiguous or randomly distributed in ecotone area. However, in teak and sal dominated forest species distribution pattern were mainly contagions and few species were regularly distributed. The concentration of dominance was lower and index of diversity higher in ecotone zone (0.968) forests and teak (0.890) dominated forests but in sal dominated forest the same was found to be 0.806. The fungal population was significantly more in soils of ecotone (18 no) as compared to sal (4 no) and teak (4 no). The physico chemical data reveals that the pH of the surface soil in teak forest was found to be natural where as in sal forest the soil is acidic. However the pH of the soil of ecotone zone was found in between pH teak & sal forests. Organic carbon percentage of the profile soil samples of ecotone & teak forest were 1.14% and 1.36%, but in sal forest organic carbon % was comparatively low (0.32%) (Table 8, 9 & 10) The total exchangeable cations and CEC of the three sites reveal that the econtone and teak forest contains higher fertility status than sal forest of M.P. 收起