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Irrigation in the world - challenges for the future.

机译:世界灌溉-未来的挑战。

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One lesson of the present food crisis in many developing countries is that rapid agricultural growth is urgently needed to face the severe crisis currently escalating in these countries. Projections of future irrigation development over the next half century are exercises in "futurology". But the following is not speculation. Irrigated agriculture around the world, and especially in developing countries, faces extraordinary challenges in the coming decades. On the one hand, it has to provide a major share of the required increases in food and fibre production to meet the objectives of poverty alleviation and development. On the other hand, it is threatened by water shortages arising from accelerated competition of domestic, industrial and other water users. This situation is further worsened by dwindling financial resources available for capital expenditures as the costs of new irrigation schemes increase.
机译:许多发展中国家当前粮食危机的一个教训是,迫切需要农业快速增长,以应对这些国家当前不断升级的严重危机。对未来半个世纪的灌溉发展的预测是“未来学”的练习。但是以下并不是推测。在未来几十年中,世界各地,尤其是发展中国家的灌溉农业面临着巨大的挑战。一方面,它必须在所需的粮食和纤维生产增加中提供很大一部分,以满足减轻和发展贫困的目标。另一方面,由于家庭,工业和其他用水者竞争加剧而引起的水资源短缺,它受到了威胁。随着新灌溉计划成本的增加,可用于资本支出的资金越来越少,这种情况进一​​步恶化。

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