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引用本文:宋玉芝,朱广伟,秦伯强.太湖康山湾示范区水生植物对水体氮、磷控制的适用性分析.湖泊科学,2013,25(2):259-265. DOI:10.18307/2013.0212
SONG Yuzhi,ZHU Guangwei,QIN Boqiang.Applicability analysis of aquatic macrophytes on controlling nitrogen and phosphorus from water in the Kangshan Bay demonstration area of Lake Taihu. J. Lake Sci.2013,25(2):259-265. DOI:10.18307/2013.0212
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太湖康山湾示范区水生植物对水体氮、磷控制的适用性分析
宋玉芝1, 朱广伟2, 秦伯强2
1.南京信息工程大学环境科学与工程学院, 南京 210044;2.中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
摘要:
为重建湖泊水生植被,改善太湖局部水域水质,在太湖康山湾示范区两个大型围隔进行了两种类型水生植物重建.通过2010年8月-2011年8月的现场采样及分析测定发现,人工控制条件下,浮叶植物荇菜和菱以及沉水植物马来眼子菜的重建效果较好,在其生长季节具有较高的覆盖度;研究表明,控制风浪及提高透明度是恢复水生植被的前提;植被重建区沉水植物氮、磷含量与浮叶植物差别不大,但浮叶植物重建区水体氮、磷浓度的控制比沉水植物重建区好;从经济及水环境效益角度来看,太湖敞水区的沿岸带由于风浪的控制比较困难,恢复水生植被时,应选择浮叶植物荇菜、菱、沉水植物马来眼子菜等抗风浪能力强的物种.本研究为太湖敞水区沿岸带的生态恢复方案制定提供了理论依据.
关键词:  水生植物  氮磷控制  适用性  太湖
DOI:10.18307/2013.0212
分类号:
基金项目:国家水体污染控制与治理科技重大专项项目(2012ZX07101-010);国家自然科学基金项目(41071341,41230744)联合资助
Applicability analysis of aquatic macrophytes on controlling nitrogen and phosphorus from water in the Kangshan Bay demonstration area of Lake Taihu
SONG Yuzhi1, ZHU Guangwei2, QIN Boqiang2
1.College of Environmental Science and Engineering, Nanjing University of Science Information and Technology, Nanjing 210044, P.R.China;2.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China
Abstract:
In order to restore the aquatic vegetation and improve local water quality,reconstruction of two ecological types of aquatic plants were carried out in two large enclosures in the Kangshan Bay demonstration area of Lake Taihu.By annual investigation, results showed that floating-leaved aquatic plants such as Limnanthemun nymphoides and Trapa bicorni,and submerged plant such as Potamogeton macckianus grew better than other plants under controlled conditions.Their coverage was quite high during the growing season.Results also showed that,controlling wind-driven wave disturbance and improving water transparency were the prerequisite for aquatic vegetation restoration;there was no difference about N and P contents between submerged macrophyte and floating-leaved aquatic plants,but floating-leaved aquatic plants performed better than submerged macrophyte in removing water N and P content.Concerning the economic and environmental benefit,aquatic plants including L.nymphoides,T.bicorni and P.macckianus with powerful anti-wave ability could be selected as the pioneering species to rebuild the aquatic vegetation in the open area of Lake Taihu.This research provided theoretical basis for ecological restoration in the open littoral area of Lake Taihu.
Key words:  Aquatic macrophyte  control of N and P  applicability  Lake Taihu
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