三峡水库及香溪河库湾理化特征的比较研究
COMPARATIVE RESEARCH ON PHYSICOHEMICAL FACTORS BETWEEN XIANGXI BAY AND THE FRONT REGION OF THREE GORGES RESERVOIR
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摘要: 根据2003年6月三峡水库初期蓄水后对香溪河库湾的常规监测,对该水域的理化特征及其动态进行了分析,并与三峡水库库首的数据进行了比较研究。结果显示库湾TN、NO3-N浓度要显著低于库首,前者两周年平均值为1.29mg/L,0.88mg/L,后者两周年平均值为1.62mg/L,1.22mg/L。而PO4-P则是库湾显著高于库首,并且在7—9月库首的TP/PO4-P有显著提高。结果同时表明库首的水土流失较严重,而库湾则有较好的水土保持。最后对TSIM的计算结果表明,由于TP、TN都处于高水平,库首呈现中营养化(TSIM37),而库湾则呈现严重富营养化(TSIM53)。Abstract: Based on the routine monitoring in Xiangxi Bay after the initial impounding in Three Gorges Reservoir in June, 2003,the physicochemical indices and the dynamics were analyzed and compared with the data of the front region of Three GorgesReservoir.The results indicated that the concentrations of TN, NO3-N in Xiangxi Bay were lower than those in the reservoir significantly.The biyearly averages of TN, NO3-N were 1.29mg/L, 0.88mg/L in Xiangxi Bay and 1.62mg/L, 1.22mg/L in thefront reservoir.However, PO4-Pwas higher in Xiangxi Bay than in the front reservoir, and monthly averages of TP/PO4-P in thefront reservoir were significantly higher than those in Xinagxi Bay during July to September.The results also showed that therewere heavy soil erosion in the reservoir, while soil and water were kept better in Xiangxi Bay.Based on the evaluation of thetrophic state indices (TSIM), Three Gorges Reservoir was middle eutrophical (TSIM >37), and Xiangxi Bay was eutrophical(TSIM >53)due to high phosphorus and nitrogenous pollution.
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Keywords:
- Three Gorges Reservoir /
- Xiangxi Bay /
- Initial impounding /
- Physicochemical factors /
- Eutrophication
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[1] [J].Journal of lake sciences, 1997, 9(1):89-94[蔡庆华.湖泊富营养化综合评价方法.湖泊科学, 1997,9(1):89-94][8] Zhong C H, Xing Z G, Deng C G.Preliminary study on three gorgedam impacting on the water quality of Yangtze River and Jialing Riverin Chongqing[J].Chongqing Environmental Science, 1994, 16(4):35-39[钟成华, 幸治国, 邓春光.三峡水库对长江、嘉陵江重庆城区段水质影响初探.重庆环境科学,1994, 16(4):35-39]
[1] Huang X F.Survey, observation and analysis of lake ecology [M].Beijing:Standards Press of China, 2000[黄祥飞.湖泊生态调查观测与分析.北京:中国标准出版社出版,2000]
[2] Jin X C.Chinese lakes and environments [M].Beijing:Ocean Press,1995[金相灿.中国湖泊与环境.北京:海洋出版社,1995]
[3] The College of life Sciences and Chemistry of Yunnan University,Manwan Hydro-power Station of Yunnan Province.The ecologi cal Environmentand biological resources of Manwan Hydropower StationReservoir along Lancang River in Yunnan [M].Kunming:Science &Technology Press.2000, 1-17, 24[云南大学生命科学与化学学院, 云南省漫湾发电厂.云南澜沧江漫湾水电站库区生态环境与生物资源.昆明:云南科技出版社, 2000,1-17, 24]
[4] Kuang Q J, Bi Y H, Zhou G J.Study on the phytoplankton in theThree Gorges Reservoir before and after sluice and the protection ofwater quality [J].Acta Hydrobiologica Sinica, 2005, 29(4):353-358[况琪军, 毕永红, 周广杰.三峡水库蓄水前后浮游植物调查及水环境初步分析.水生生物学报, 2005,29(4):353-358]
[5] Carlson R E.A trophic state index for lakes [J].Limnol Oceanogr,1977, 22(2):361-369
[6] Aizaki M.Application of modified Carlson' s trophi c state index toJapanese lakes and its relationships to other parameters related totrophic state [J].Res Rep Nati Inst Environ S tud.1981,(23):13-31
[7] Cai Q H.On the comprehensive evaluationmethods for lake eut rophication
[9] Liu Y M, Ji a S F, Jiang L W.A study on the impact of the ThreeGorges Reservoi r on potential eutrophication in backwaters of tributaries of Chongqing section of Yangtze River [J].Geographical Research, 2003, 22(1):67-72[刘永明, 贾绍凤, 蒋良维.三峡水库重庆段一级支流回水河段富营养化潜势研究.地理研究,2003, 22(1):67-72]
[10] Claude D B, Canfield D E, Bachmann R W.Seasonal Patterns ofChlorophyll, Nutrient Concentrations and Secchi Disk Transparency inFlorida Lakes [J].Lake and Reserv.Mannag, 1998, 14:60-76
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