EFFECT OF PLANTING DENSITIES ON GROWTH AND BIOMASS OF Eucalyptus urophylla PLANTATION IN VIETNAM |

Millions of people in Vietnam's rural districts rely on eucalyptus plantations for their livelihood. Variable planting densities result in different tree growth, biomass, and, as a result, plantation value. Three planting densities for Eucalyptus urophylla cultivated in Southern and North Central Vietnam were examined in this study. For 3-year-old plantations, growth metrics (diameter at breath height/DBH, stem height, and crown diameter/Dc) were assessed, and dry biomass was computed. The findings revealed that planting densities had a substantial impact on DBH, height, and Dc growth in the North Central. In the Southern, it had a substantial impact on DBH and height growth. Planting densities had a considerable impact on the dry biomass of a 3-year-old plantation at both sites. In the Southern, the greatest dry biomass was 66.3 Mg ha-1 at a planting density of 1,110 trees ha-1, whereas in the North Central, it was 20.9 Mg ha-1 at a planting density of 1,110 trees ha-1. When all three planting densities were compared between two locations, the dry biomass at the Southern was substantially higher than that at the North Central. At a planting density of 1,110 trees per hectare, the difference was 45.4 Mg ha-1, 33.7 Mg ha-1 at 1,330 trees per hectare, and 20.9 Mg ha-1 at 1,660 trees per hectare. Growing E. urophylla with a planting density of 1,110 trees ha-1 was found to be effective in both the southern and northern parts of Vietnam.

Please see the link :- https://www.ikprress.org/index.php/JOGEE/article/view/1040