Yellow River Delta wetland for the base address the back ground to complete the shallow, statu sand location of river channels.
以黄河三角洲湿地为基址背景，完成浅滩、河道的现状及定位分析。
This article revolves around the theme of "evaluation of Yellow River Delta wetland ecosystem services," studied and discussed the theory, methods and practice of the assessment.
本文围绕着“黄河三角洲湿地生态系统服务评估”这一主题，对生态系统服务评价的理论、方法与实践进行了研究与探讨。
In the paper, the types, characteristics, planning and evolution of wetland ecosystem in Yellow River Delta have been analyzed, and its protection has been discussed.
本文对黄河三角洲湿地生态系统的类型、特征、演替、演化进行了分析，并探讨了有关保护对策。
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