泥沙淤积与保护湿地及生物多样性

A New Subject of Water Resources in the 21st Century——Silt Sediment and Wetland Protection as well as Biodiversity

我国有世界上最宽广的黄土高原和土石山区,而其中大部分地区又是暴雨集中的地区,每年产生大量的泥沙,在河流的中下游地区形成了广阔的堆积平原。在这些堆积平原地区存在大片湿地,如何合理地加以保护和利用,保持生物的多样性及可持续发展,应当列为21世纪水利工作的新课题。

China possesses the broadest loess plateau and earth-and-rock mountains in the world and most of them are areas with frequent storms. Each year storms wash away a great deal of mud and sand, which form wide plains of accumulation in the middle and downstream areas of rivers. There are lots of wetlands among these accumulative plains. How to reasonably protect and utilize those wetlands to sustain biodiversity and sustainable development should be listed as a new subject of water conservancy business in the 21st century.