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OALib Journal期刊
ISSN: 2333-9721
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珠江口滩涂围垦对大型底栖动物群落的影响
DOI: 10.3724/SP.J.1145.2011.00499, PP. 499-503
Keywords: 滩涂,围垦,大型底栖动物,群落结构,珠江口
Abstract:
为了解海岸滩涂围垦对沿海生态系统的影响，采用大型底栖动物群落来进行影响评价.对珠江口伶仃洋西海岸的6个自然滩涂和5个围垦滩涂的大型底栖动物进行比较研究，采用4种生物指数、聚类分析（cla）及非度量多维测度排序（nms）对其进行群落特征分析.结果显示：自然滩涂底栖动物种类数平均7.5种，栖息密度386.63indm-2，生物量15.5936gm-2，均普遍高于围垦滩涂.滩涂围垦可造成滩涂生境改变，从而导致底栖动物群落结构简单，生物组成单一，群落相似性较低.因此必须科学制定围垦方式并进行围垦后生态保护，在满足用地需求和生境保护之间取得平衡.图5表3参24
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