Ecological distribution characteristics of Homalomena ssp. species Thua Thien Hue province

Abstract

In Thua Thien Hue province, Homalomena ssp. are distributed in natural forests in districts/towns from Phong Dien, A Luoi, Nam Dong and Phu Loc. This study reviewed secondary documents and from there determined the distribution areas of the species and conducted field surveys. The distribution areas of Homalomena ssp. have an average temperature of 22–25 °C; average humidity of 85–88%; average annual rainfall of 4,235–5,112 mm. The concentrated distribution altitude of the species is from 100–800 meters above sea level; Common slope is from 15–20 degrees. These species often appear on red-yellow feralit soil from clay and metamorphic rocks (Fs) and red-yellow feralit soil from acid magma rocks (Fa) with average soil layer thickness. The species’ habitat ranges from poor to rich evergreen natural forest. The canopy cover is from 0.4–0.8. The populations encountered during the investigation have a wide spatial distribution range, from average to high population density, and good natural regeneration. From the survey results, the study has created a distribution map of the species, aiming to conserve and establish areas with the potential to build raw material sources in the future.