Liu Yanjing¹    Yang Lixia¹    Zong Jipeng²
(1. the Yellow River Estuary Bureau , Dongying, China,257091£»
2.Kenli Bureau of the Yellow River, Dongying, China, 257500)

Abstracts: The Yellow River delta has rich wetland resources. Protecting and developing wetland is important to keep ecological environment security and to maintain water resource sustainable development. This article summarizes the Yellow River delta wetland, from adjusting flood, reducing the flood peak, supplying groundwater-bearing stratum, improving water quality, preventing salt water invasion, and so on. This article also elaborates the wetland function, and analyzes the wetland current existence question, and proposes the countermeasures of how to protect and manage wetlands.

Key words: Yellow River delta, wetlands, protection, water resource, sustainable development