Trends towards 2050 predict a steady population increase to 9 billion people, forcing an increased food/feed output from available agro-ecosystems resulting in an even greater pressure on the environment. Scarcities of agricultural land, water, forest, fishery and biodiversity resources, as well...
05 جنوری 1989 This training resource book is made for researchers wishing to learn and teach the essentials of agro-ecosystem mapping. 55 pages, illustrations, photos