<p class="MsoNormal" style="text-align:justify;text-indent:1cm;"><em><span style="font-size:10pt;" lang="in" xml:lang="in">The aims of this research is to study various vegetation associations on Mount Salak. <span> </span></span></em><em><span style="font-size:10pt;">Sampling</span></em><em><span style="font-size:10pt;"> </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">was</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in"> done by using systematic sampl</span></em><em><span style="font-size:10pt;">ing</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in"> with random start.</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in"> Cluster analysis was used to determine the vegetation association. <span> </span></span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">The </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">relationship between </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">abiotic factors </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">and vegetation association was </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">analyzed using </span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">Chi-Square statistic.</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in"> <span> </span></span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">There are 5 vegetation associations at alliance 1, 6 associations at alliance 2, and 7 associations at alliance 3. <span> </span>Calcium, phosp</span></em><em><span style="font-size:10pt;">h</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">orus content of soil, soil’s texture and slope direction are the abiotic factors that affected the association at alliance 1. <span> </span>Calcium and phosp</span></em><em><span style="font-size:10pt;">h</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">orus content of soil, and minimum altitude of plot are abiotic factors that affected the association at alliance 2. <span> </span>Phosp</span></em><em><span style="font-size:10pt;">h</span></em><em><span style="font-size:10pt;" lang="in" xml:lang="in">orus content of soil and minimum altitude plot are the abiotic factors that affected the association at alliance 3.</span></em></p> <p class="MsoNormal" style="text-align:justify;"><em><span style="font-size:10pt;" lang="in" xml:lang="in"> </span></em></p> <em><span style="font-size:10pt;" lang="in" xml:lang="in">Key words: </span><span style="font-size:10pt;" lang="in" xml:lang="in">Mount Salak</span><span style="font-size:10pt;" lang="in" xml:lang="in">, vegetation association, cluster analysis, chi-square statistic</span></em>

Abstract

The aims of this research is to study various vegetation associations on Mount Salak.  Sampling was done by using systematic sampling with random start. Cluster analysis was used to determine the vegetation association.  The relationship between abiotic factors and vegetation association was analyzed using Chi-Square statistic.  There are 5 vegetation associations at alliance 1, 6 associations at alliance 2, and 7 associations at alliance 3.  Calcium, phosphorus content of soil, soil’s texture and slope direction are the abiotic factors that affected the association at alliance 1.  Calcium and phosphorus content of soil, and minimum altitude of plot are abiotic factors that affected the association at alliance 2.  Phosphorus content of soil and minimum altitude plot are the abiotic factors that affected the association at alliance 3.

Key words: Mount Salak, vegetation association, cluster analysis, chi-square statistic