Ecology of Persian Walnut (Juglans regia L.) in Western Bhutan

In Bhutan the Persian Walnut (Juglans regia L.) is highly valued for its timber and listed under special class in Royalty on Forest Products of Bhutan. Possessing high other medicinal values, ecology species country was poorly understood. The study aimed to understand ecological requirements habitat modeling A purposive non-probability sampling adopted natural habitats four districts (Gasa, Punakha, Wangdue Phodrang, Dagana) country. Plot size 20 m X (major plot) tree understory 2 ground cover were used collect vegetation data. Soil samples collected from center major plot at a depth 25 - 30 cm. total 163 plant belonging 74 families recorded plots. Pearson Kendal correlation CCA Ordination showed moderate influence slope (r = .66) followed by altitude =.55). Annual mean temperature rainfall moderately negative with growth distribution J. =. -54 -.64) area. Despite, scattered an area 7146.53 km2 which accounts 18.61% country’s found be suitable development can protection management future.