What are the major problems of semi arid ecosystem?suggest methods to solve these problem?
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A survey of the world's deserts and processes of desertification identifies those that are strictly due to physical factors and those that are anthropogenic. Areas of potential useful study are identified: improved climate, climatic research and monitoring, improvement of arid zone cultivars, improved techniques of decision-making about land use. Warnings are given of the dangers of over-intensification of agricultural systems and of increasing population density in arid zones. Research areas suitable for international co-operation are outlined
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