05 June 2015, Hanoi, Viet Nam - Engineer Pham Ngoc Thanh uses a densitometer during a field demonstration at a forest following the Workshop "Improved Information to Promote Forest Management for Protection of Soil and Water - Case study of Vietnam". Rapid assessment of forest protective function for soil and water?in Vietnam. Workshop and field demonstration on how data can be gathered using a scientifically sound, cost effective and easy-to-apply method. The Food and Agriculture Organization of the United Nations, at the request of its member countries, regularly monitors the world? forests and their management and uses through the Forest Resources Assessment (FRA) Programme.