阳西县湿地资源现状及保护对策

Curre ntStatus and Protecti on Cou ntermeasures of Wetla nd Resources in Yan gxi Cou nty

阳西县南部临南海,湿地资源丰富、类型多样。以《全国湿地资源调查技术规程(修订版)》为技术标准,采用“3S”技术结合实地调查的方法,对阳西县湿地资源进行调查。结果表明阳西县的湿地可分为3大湿地类11个湿地型,其成因主要有气候因素、水文要素和人为因素;具有近海与海岸湿地面积较大、类型多,人工湿地多,湿地动植物种类丰富,湿地土地权属以国家所有为主等特点。目前,阳西县湿地资源面临着面积缩减、生物资源减少、生态系统不稳定等威胁。针对存在的问题提出了因地制宜实施科学围垦,提高社会保护意识,加大入侵物种治理力度,加强对现有自然湿地资源的保护等保护对策。

The south of Yangxi county is adjacent to the South China Sea. It is rich with wetland resources and various types. Taking the technical regulations for national wetland resources investigation(Revised Version)as the technical standard,the wetland resources in Yangxi county were investigated by using“3S”technology combined with field investigation. The results show that the wetlands in Yangxi county can be divided into three categories and 11 wetland types,which are mainly caused by climate factors,hydrological factors and human factors;The causes of Yangxi wetland mainly include climate factors,hydrological factors and human factors. It is characterized by large area and many types of offshore and coastal wetlands,many constructed wetlands,rich species of wetland animals and plants,and mainly state-owned wetland land ownership.At present, the wetland resources in Yangxi county are faced with threats such as the reduction of wetland area,the reduction of the total amount and types of wetland biological resources,and ecosystem instability. In view of the existing problems,some protection countermeasures are put forward,such as implementing scientific reclamation according to local conditions,improving social protection awareness,strengthening the management of invasive species,and strengthening the protection of existing natural wetland resources.