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引言湿地(wetland),由土地、水体、生物构成,内部生态结构复杂,又与外界环境广泛联系,因此具有非常特殊的生态功能。湿地也孕育了丰富的自然资源,其覆盖面很广,包括了土地资源、水资源、水产渔业资源、野生动植物资源等。无论是对生态平衡和环境保护,还是对经济建设和社会发展,湿地都具有重要的意义。早自20世纪50年代,湿地保护就已受到全球范围的关
Introduction Wetland is composed of land, water body and living things. Its internal ecological structure is complex and has extensive contact with the external environment. Therefore, wetland has very special ecological functions. Wetlands also gave birth to a wealth of natural resources, covering a wide area, including land resources, water resources, fisheries and fisheries resources, wildlife resources. Whether it is for ecological balance and environmental protection, or for economic construction and social development, wetlands are of great significance. As early as the 1950s, wetland protection has been closed around the world