| 南京玄武湖菹草种群的环境效应 |
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| 引用本文： | 杨文斌,王国祥.南京玄武湖菹草种群的环境效应[J].湖泊科学,2007,19(5):572-576. |
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| 作者姓名： | 杨文斌 王国祥 |
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| 作者单位： | 1. 南京师范大学地理科学学院,江苏省环境演变与生态建设重点实验室,南京,210046;安徽师范大学环境科学学院,芜湖,241000
2. 南京师范大学地理科学学院,江苏省环境演变与生态建设重点实验室,南京,210046 |
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| 基金项目： | 国家211工程重大项目
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国家高技术研究发展计划(863计划)
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江苏省重点科技基金 |
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| 摘 要： | 为了解玄武湖菹草种群的环境效应,对玄武湖2006年春季水质变化、菹草区内外水质差异进行了监测,并分析了2003-2006年春季水质监测资料,结果表明:菹草区DO高于菹草-水交界区及开阔水域;从菹草区到菹草-水交界区、开阔水域TP、TN逐渐升高,TP均值分别为0.062、0.098、0.105 mg/L,TN均值分别为1.674、2.202、2.412 mg/L;与2003-2005年同期均值相比,2006年3-5月份TP分别下降了15.4%、45%、43.3%,TN分别下降58.2%、43.9%、51.3%,SD保持在65 cm以上;说明菹草在改善湖泊环境和净化水质方面有重要作用.最后提出了改善、维持玄武湖健康稳定水生生态系统的措施和建议.
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| 关 键 词： | 玄武湖 菹草(Potamogeton crispus L.) 环境效应 南京玄武湖 草种 环境效应 Lake population effects Environmental 生态系统 稳定 健康 作用 净化水质 湖泊环境 改善 均值 开阔水域 交界区 结果 监测资料 春季水质 |
| 收稿时间： | 2006-08-14 |
| 修稿时间： | 2006-11-14 |
Environmental effects of Potamogeton crispus population in Lake Xuanwu, Nanjing |
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| YANG Wenbin and WANG Guoxiang.Environmental effects of Potamogeton crispus population in Lake Xuanwu, Nanjing[J].Journal of Lake Science,2007,19(5):572-576. |
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| Authors: | YANG Wenbin and WANG Guoxiang |
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| Institution: | 1.School of Geography Science, Nanjing Normal University, Nanjing 210046 ,P. R. China;2.College of Environmental Science, Anhui Normal University, Wuhu 241000, P. R. China |
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| Abstract: | To investigate the environmental effects of Potamogegeton crispus population in Lake Xuanwu,water quality in and out Potamogeton crispus population area were monitored from January to June of 2006,and were com- pared from 2003 to 2006 in Lake Xuanwu.The results showed:1)From P.crispus population area to open water area,concentration of DO gradually decreased;2)From"P.crispus population area","transition area"to"open water area",concentration of TP and TN increased gradually.Average concentration of TP in those area were 0.062,0.098 and 0.105 mg/L respectively,and average concentration of TN in those area were 1.674,2.202 and 2.412 mg/L respectively;3)TP concentration from March to May in 2006 decreased by 15.4%,45% and 43.3%,compared with the same months from 2003 to 2005;these told us that Potamogegeton crispus population had vital roles in improving lake environment and purifying water quality.Finally,some suggestions about impro- ving and maintaining stable aquatic ecosystems of Lake Xuanwu were put forward in the article. |
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| Keywords: | Lake Xuanwu Potamogegeton crispus L environmental effect |
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