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… on Ecosystem Management. Reviewers: Peter Laban, Lead Dryland Ecosystems Thematic Group, IUCN Commission on … . . . . . . . . . . . . . . . . . . .3 Unique features of dryland ecology . . . . . . . . . . . . . . . . . . . . . . . … . . . . . . . . . .31 Lessons on integrated management of dryland ecosystems . . . . . . . . . . . . . . . . . . . . . …

… areas are more diffuse. The north-eastern Brazilian dryland area shows the effect of severe drought conditions … Aridity BIO-PHYSICAL 0 25 50 75 100 Va ria bl es land Dryland Non dryland % of Global area with >50% crop (15 million km2) …

… km2, 45 per cent of which is classified as deserts and dryland. ● With 15 per cent of the world’s land surface area, … ICARDA (2002). Conservation and Sustainable Use of Dryland Agrobiodiversity, International Center for … Collection and conservation of genetic resources for dryland farming systems. 4th International Crop Science …

… of ecosystems: marine, coastal, inland water, forest, dryland, island, mountain, polar, cultivated, and urban. … be illustrated particularly in forest, mountainous, and dryland ecosystems. Forests are associated with slightly more … systems contribute ten percent or less. Paradoxically, dryland ecosystems, due to their large aerial extent, receive …

… of natural vegetation as a strategy for controlling dryland salinization (Case 1). Case 1 Salinity credits used … and deposit mineral salts in the soil and surface waters. Dryland salinity severely affects 40% of private land …

… Management) Chapter 1 Dr Mark Smith and Peter Laban (Lead, Dryland Ecosystems Thematic Group, IUCN Commission on … waterwell use com- pared to that of adjacent land used for dryland farming.80 A similar phenomenon occurs in Mendoza …

… affected population, mainly pastoralists, fisherfolk and dryland farmers, represent some of the poorest and most …

… forms of water use may be necessary. As a means to reduce dryland salinity problems, for example, a review may propose …