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1992年,联合国环境与发展大会通过了《21世纪议程》,强调了环境的可持续发展。随着人口增加,人均水资源量不断减少,人类面临的问题也越来越多。确保粮食安全,实现环境可持续发展是全球灌排领域面临的新挑战。这个挑战不仅对中国有很大的困难,对英国和法国等发达国家也面临着困?
In 1992, the United Nations Conference on Environment and Development adopted Agenda 21, emphasizing the sustainable development of the environment. As the population increases, the per capita water resources will continue to decrease, and human beings face more and more problems. Ensuring food security and achieving environmental sustainability are new challenges in the global irrigation and drainage arena. This challenge poses great difficulties not only for China, but also for developed countries such as Britain and France.