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The increasing world population is already causing intensive pressure on the most productive areas of the earth's surface. Hopes of improved living standards, if realised, will increase the pressure still further. The need to make better use of less productive areas thus becomes an urgent priority for human endeavour. In this respect, the arid and semi-arid regions of the world, occupying about 11,000 million acres or 4,500 million hectares, roughly one third of the tota11and surface, pose a constant challenge to man's technological skill. Though the possibilities of economic use of the real deserts are inherently limited, there remain vast areas with less extreme conditions where sustained research is capable of yielding substantial gains in pro ductivity. The problem is so large that it can be solved only by the coordinated efforts of workers in many countries and many disciplines. Forestry has a special part to play, not only for its potential value for wood production but still more for the beneficial effects of shelter from desiccating winds which so commonly accompany arid conditions. Mr. KA UL is to be congratulated on his initiative to pool the results of research on afforestation in arid zones in many parts of the world, and to present them in a single volume in the form of separate monographs.
This book (Manual) was issued, as required documents, to be on hand as a bioremediation and reforestation guidance, aimed to provide multifarious environmental aspects and can afford an important information and data to be generable to the Sudanese scientific community, such as environmental planners, to help on planning and proposing relevant projects, base on Sudanese partnership experiences, in an organized tidy and intact manner, . Also let designers to design well, installers, operators, monitors and others will expect to do their work perfectly. The knowledge in this manual, leads to know how to manage and monitor, a doable effluent (discharged) irrigation system, through a bioremediation, in a professional way, to diminish risks to public, animal health, the environment and the agricultural resources. I hope in Sudan this manual, will obey without demur, the all needed tasks, so as not to be obfuscating for audience or readers .if this will happen, then it may quench the thirsty, of the required information, concerning bioremediation, as a dependable incessant buttress, for environment in general and oil field areas in particular
UNU-UN pub. Case studies of resources development in semi-arid zones of Sudan - considers pest control in dura staple food crop production and its use as fodder; examines the economic implications and social implications of the rural area water supply programme; looks at wood resources in a mountainous area, fuelwood consumption and forest conservation; analyses government attitudes and peasant farmer attitudes towards agricultural development. Diagrams, graphs, references, statistical tables.