Fundamental Way to Improve Ecological Environment in the Yellow River Delta

摘要

The Yellow River delta has a weak ecological environment basically for the reason of frequent changes of the flow path in history. In recent years, the ecological environment in the delta area has not improved still with barren lands and sparse vegetation. This paper discusses the limitations of the traditional countermeasures on flow path diversion, and provides the relatively fixed flow path in the delta area and the specific management measures, the water and sediment control works are the key to improve the ecological environment of the Yellow River delta. The author advised to build the water and sediment control works in the flow path at Xihekou (axial flow path diversion points) covering the area of 4,500km2 in the Yellow River delta, including fabric dam and flood diversion sluice with 3,000m'3/s discharge.