Similarity Analysis of Understorey Plant Species in Forest Areas

Many forests have substantial understorey plants. These plants an important contribution to soil and water conservation. The similarity index determines the resemblance of species structure composition in a community. This research is aimed see impact relationship changes allocation forest areas species. was conducted using line plot sampling method, sized 2 m x m, with observed been measured from germination young plant (height 1.5 m). number plots plantation 480 plots, protected 224 natural 96 plots. Determination based on minimum representative area curve. A Similarity Index performed analyze data. results indicated that there It known low value at location. due differences environmental factors two locations such as air humidity, temperature, intensity sunlight, different patterns management.