The plant COlli/II unities oj the Igoll1be dam protected and non-protected Miombo woodlands ojrnTabora were described based on thejloristic analysis ojthe data collected between October 2003rnand November 2003. Floristic analysis is based on the cover abundance values ojboth trees, shrubsrnandfield layer which included grasses and herbs. Plant comlllunily -environment relationship wasrnassessed based on the soil physical and chemical characteristics. A total 60 plots (releves) werernanalysed, and a total 145 species vascular plants were identified.rnThe vegetation data were subjected to cluster analysis. The cluster analysis resulted into sevenrncommunity types jor field layer, nine comlllunity types jor shrub layer and eight cOllllllunity typesrnjor tree layer. The rations ojprotected and un-protected plots were subjected to two-sample t-test.rnThe results showed that the shrub layer responded quickly to disturbance than tree and field layer.rnEnvironlllental data were subjected to Duncan mUltiple range test. These tests resulted intornconclusion that the important nutrients were more in the protected sites than in the unprotectedrnsites.rn111e results showed that there is significant difference in community composition and structurernbetween the protected and non-protected area due to the activities going 011. Also the soils of bothrntwo areas showed significant difference in nutrient contents and account jor the differences in therncomposition and structure.