Daddy Ruhiyat is a professor of forest soils at the Forestry Faculty of Mulawarman University in East Kalimantan. He has been working at Mulawarman University since 1973 and was the Dean of the Faculty of Forestry from 1994-2000. Additionally, he served as an expert staff for the Governor of East Kalimantan in the field of Natural Resource Management and Environmental Issues from 2008 to 2010. Since 2011, he has been the Chairman of the East Kalimantan Climate Change Council (DDPI).
Prof. Daddy Ruhiyat graduated from the School of Forestry – Mulawarman University in 1977. He received master’s degree from the Tokyo University of Agriculture and Technology – Japan in 1982, and his Doctorate from Georg August University of Goettingen – Germany, in 1989.