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东太湖生态环境的演变与对策 被引量:24
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作者 杨再福 施炜刚 +2 位作者 陈立侨 陈勇 周忠良 《中国环境科学》 EI CAS CSSCI CSCD 北大核心 2003年第1期64-68,共5页
分析了40多年来东太湖生态环境的演变,随时间的推移,东太湖的水质逐渐恶化,水体营养状态由中-富营养型向中-富-富营养型过渡,并接近富营养状态.淤积层厚度逐步上升,沼泽化趋势明显.藻类密度不断增加,种类不断减少,浮游生物和鱼类的小型... 分析了40多年来东太湖生态环境的演变,随时间的推移,东太湖的水质逐渐恶化,水体营养状态由中-富营养型向中-富-富营养型过渡,并接近富营养状态.淤积层厚度逐步上升,沼泽化趋势明显.藻类密度不断增加,种类不断减少,浮游生物和鱼类的小型化趋势明显.20世纪50年代马来眼子菜为沉水植物的优势种,但进入20世纪90年代后,挺水植物、浮叶植物的扩展和湖底的沉积物迅速於积导致了沼泽化进程的加速.东太湖的渔业产量一直呈上升趋势,自1984年网围养殖出现后,网围养殖经历了由粗放型到精养型和效益型的转变,从污染型向生态型方向发展.目前必须加强对东太湖的综合治理,进行生态恢复与重建,以维持东太湖资源的可持续发展. 展开更多
关键词 东太湖 生态环境 演替 对策 富营养型 水体营养状态
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The Effects of Pen Fish Culture on the Ecological Environments of Taihu Lake
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作者 YANGZai-fu CHENLi-qiao +5 位作者 LIUQi-gen SHIWei-gang CHENYong ZHOUZhong-liang SONGBin LIUHuan 《Agricultural Sciences in China》 CAS CSCD 2003年第12期1398-1403,共6页
Effects of pen fish culture in Taihu lake were studied and summarized. During 1984 to 2001, pen fish culture of Taihu lake developed from extensive models to intensive and high-returned ones, the cultured species were... Effects of pen fish culture in Taihu lake were studied and summarized. During 1984 to 2001, pen fish culture of Taihu lake developed from extensive models to intensive and high-returned ones, the cultured species were shifted from fishes to crabs. Pen fish culture has caused eutrophication and detrimental effect to the ecological environment and fishery. The measures of sustainable development for pen fish culture and ecological environment protection were suggested. 展开更多
关键词 Pen fish culture Taihu lake Ecological environment Measures of sustainable development
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