Tabel volume lokal pohon sengon (Paraserianthes falcataria) di Kebun Glantangan Jember, PTPN XII Jawa Timur

Abstract

Paraserianthes falcataria known as sengon is one of fast growing spesies for industrial forest plantation in Indonesia. The objective of this research was to estimate volume of certain trees in a forest stand. The tree dimension that used was diameter at breast high (dbh) on 120 sample trees that were selected using purposive sampling technique. The estimation of trees volume was based on measurement of fallen trees. The result of the research showed that the best model fit to criteria of model determination: cofficient of determination (R2), standard error, and Ftest, was V = - 0,193 + 0,0170D + 0,00032D2 with R2 values of 98,4% and standard error was 0,023. The accuracy of the regression model was qualified due to RMSE value of 11,25%.