巢湖西半湖富营养化时空变化趋势与成因分析
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摘要
收集整理了巢湖西半湖6个国控监测点1983~2008年(26年)主要富营养化指标TP、TN、CODmn、Chla的监测数据,计算了6个监测点和西半湖总体26年的综合营养状态指数(∑TLI图示)时空变化情况。并用Spearm an秩相关系数分析检验了西半湖总体和6个监测点26年∑TLI年变化趋势。结果表明:按总平均∑TLI排列,6个监测点富营养化由重到轻依次为:南淝河入湖区(66.64)>塘西(64.93)>十五里河入湖区(63.35)>派河入湖区(61.38)>新河入湖区(59.51)>西半湖湖心(59.18);在显著水平0.05和0.01各点∑TLI均有上升趋势,其中十五里河入湖区(R=0.715)、新河入湖区(R=0.824)和西半湖湖心(R=0.811)以及西半湖总体(R=0.512)∑TLI有显著上升趋势,而南淝河入湖区(R=0.192)、塘西(R=0.045)和派河入湖区(R=0.325)上升趋势均不显著。最后在上述研究的基础上,对巢湖西半湖富营养化时空变化的成因进行了简要分析。
The data of 6 national routine monitoring sites in west Chaohu lake were collected and analyzed.The ∑TLI were calculated and illustrated in diagrams for main eutrophication indices TP,TN,CODMn,Chla for 6 routine sampling sites and west Chaohu from 1983 to 2008.And the Spearman coefficient and tendency test were used to demonstrate the variation tendency of eutrophication in west Chaohu lake in the past 26 years.The findings indicated that the ∑TLI for 6 sites were entrance area of Nanfei river>Tangxi area>entrance area of Shiwuli river >entrance area of Paihe river> entrance area of Xinhe river> center area of western lake,and the eutrophication level of entrance area of Shiwuli river,entrance area of Xinhe river,center area of western lake and the whole west Chaohu lake significantly increased(P<0.01)while entrance area of Nanfei river,Tangxi area and Entrance area of Paihe river had no significant increase tendency.
The data of 6 national routine monitoring sites in west Chaohu lake were collected and analyzed.The ∑TLI were calculated and illustrated in diagrams for main eutrophication indices TP,TN,CODMn,Chla for 6 routine sampling sites and west Chaohu from 1983 to 2008.And the Spearman coefficient and tendency test were used to demonstrate the variation tendency of eutrophication in west Chaohu lake in the past 26 years.The findings indicated that the ∑TLI for 6 sites were entrance area of Nanfei river>Tangxi area>entrance area of Shiwuli river >entrance area of Paihe river> entrance area of Xinhe river> center area of western lake,and the eutrophication level of entrance area of Shiwuli river,entrance area of Xinhe river,center area of western lake and the whole west Chaohu lake significantly increased(P<0.01)while entrance area of Nanfei river,Tangxi area and Entrance area of Paihe river had no significant increase tendency.
引文
[1]屠清瑛,顾丁锡,徐卓然,等.巢湖富营养化研究[M].合肥:中国科学技术大学出版社,1990.
[2]汪水源.巢湖富营养化的控制[J].生态学研究,1987,(1):19-246.
[3]金相灿.中国湖泊富营养化[M].北京:中国环境科学出版社,1990.
[4]王大齐,胡恩金.巢湖生态系统之优化[J].中国环境科学,1994,14(3):177-181.
[5]张之源,王培华,张崇岱.巢湖营养化状况评价及水质恢复探讨[J].环境科学研究1999,12(5):45-48.
[6]Xu F L,Shu T,Xu Z R.The restoration of reparian wetlands andmacrophytes in lake Chao,possibilities and effects[J].Hydrobiolo-gia,1999,405:169-178.
[7]殷福才,张之源.巢湖富营养化研究进展[J].湖泊科学,2003,15(4):377-384.
[8]朱余,王凤.巢湖流域水质状况和环境目标可达性分析[J].环境监测管理与技术,2004,12(4):22~23,28.
[9]Shang G P,Shang J C.Causes and control countermeasures of eu-trophication in Chaohu lake,China[J].Chinese Geographical Sci-ence,2005,15(4):348-354.
[10]Shang G P,Shang J C.Spatial and temporal variation of eutrophica-tion in Western Chaohu lake,China.[J].Environmental Monito-ring and Assessment,2007,130/1-3:99-109.
[11]秦伯强.长江中下游地区浅水湖泊富营养化机制和控制途径[J].湖泊科学,2002,14(3):193-202.
[12]王永华,刘振宇,刘伟,等.巢湖合肥区底泥污染物分布评价与相关特征研究[J].北京大学学报(自然科学版),2003,39(4):501-506.
[13]孙亚敏,董曼玲,汪家权.内源污染对湖泊富营养化的作用及对策[J].合肥工业大学学报(自然科学版),2000,23(2):210-213.
[2]汪水源.巢湖富营养化的控制[J].生态学研究,1987,(1):19-246.
[3]金相灿.中国湖泊富营养化[M].北京:中国环境科学出版社,1990.
[4]王大齐,胡恩金.巢湖生态系统之优化[J].中国环境科学,1994,14(3):177-181.
[5]张之源,王培华,张崇岱.巢湖营养化状况评价及水质恢复探讨[J].环境科学研究1999,12(5):45-48.
[6]Xu F L,Shu T,Xu Z R.The restoration of reparian wetlands andmacrophytes in lake Chao,possibilities and effects[J].Hydrobiolo-gia,1999,405:169-178.
[7]殷福才,张之源.巢湖富营养化研究进展[J].湖泊科学,2003,15(4):377-384.
[8]朱余,王凤.巢湖流域水质状况和环境目标可达性分析[J].环境监测管理与技术,2004,12(4):22~23,28.
[9]Shang G P,Shang J C.Causes and control countermeasures of eu-trophication in Chaohu lake,China[J].Chinese Geographical Sci-ence,2005,15(4):348-354.
[10]Shang G P,Shang J C.Spatial and temporal variation of eutrophica-tion in Western Chaohu lake,China.[J].Environmental Monito-ring and Assessment,2007,130/1-3:99-109.
[11]秦伯强.长江中下游地区浅水湖泊富营养化机制和控制途径[J].湖泊科学,2002,14(3):193-202.
[12]王永华,刘振宇,刘伟,等.巢湖合肥区底泥污染物分布评价与相关特征研究[J].北京大学学报(自然科学版),2003,39(4):501-506.
[13]孙亚敏,董曼玲,汪家权.内源污染对湖泊富营养化的作用及对策[J].合肥工业大学学报(自然科学版),2000,23(2):210-213.
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