Ecology of Earthstars in Pibulsongkram Rajabhat University Areas, Phitsanulok Province

Abstract

The ecology study of earthstars were conducted at Pibulsongkram Rajabhat University (PSRU) areas for 3 years (from 2015 to 2017) to use for a local sources learning centre about the cost effective and sustainable utilization of natural resources. Ecological survey at Yangna (Dipterocarpus alatus Roxb. ex G. Don) planting areas, collected and analyzed morphological characters of fruiting bodies, soil nutrient, rainfall and soil moisture. The result was found that 3 of 235 Yangna trees with planting on waterside area were occurred fruiting bodies from May-October in 2016 and 2017. Only one species as Astraeus odoratus Phosri, Watling, M.P Martin & Whalley were found and shown their fruiting bodies. In 2017, high density (102 fruiting bodies) and big size (2.2-4.2 centimeter) of fruiting body were correlated to amount of rainfall (1,587.5 millimeter), soil moisture (18-28%), and optimum of soil nutrient (nitrogen 0.12% phosphorus 3.19% and potassium 7,231.41%).