摘要
为了使漓江水生态系统保护与修复工作不断向前推进,针对漓江断流、生态蜕变、洪涝灾害等问题,继1974、1982年之后,于2006年初第3次对漓江流域水生生物鱼类资源进行调查与评价。采用G-F指数法,结合前2次调查成果,分析漓江鱼类物种多样性的特点及漓江鱼类资源30多年来的变化态势,结果表明:漓江鱼类物种多样性水平呈明显下降的趋势,物种多样性指数共降低6.74%。
In order to sustainly push forward the protection and rehabilitation of the aquatic ecosystem of Lijiang river after surveys in 1974 and 1982,aiming at such problems of Lijiang river as water interception,ecological transmutation,flood disasters and the alike,a third survey and evaluation on the natural resources of aquatic organisms,in Lijiang river was carried out at the beginning of 2006. Adopting of G-F index method and made the comparison of the former two survey results, the features of the fish species diversity in Lijiang river and the changing trend over the past 30 years of the fish resources in Li- jiang river are analyzed. The results showed that the level of the fish species diversity in Lijiang river presents an obvious declining and the index of species diversity decreases 6.74% totally.
出处
《广西师范大学学报（自然科学版）》
CAS
北大核心
2009年第2期130-136,共7页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家公益专项资助项目(200801051)
广西科技厅攻关项目(0632006-3A)
广西水利"十一五"重点科技项目
关键词
漓江
鱼类
物种多样性
Lijiang river
fish
species diversity
