自然资源学报

自然资源学报 ›› 2007, Vol. 22 ›› Issue (2): 185-192.doi: 10.11849/zrzyxb.2007.02.004

• 资源管理 • 上一篇    下一篇

常熟市昆承湖水质时空变异特征和环境压力分析

杨文斌1,2, 王国祥1, 张利民3, 曹昀1, 潘国权1   

  1. 1. 南京师范人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;
    2. 安徽师范大学环境科学学院，安徽芜湖 241000;
    3. 江苏省环境科学研究院，南京 210036
  • 收稿日期:2006-04-05 修回日期:2006-12-18 出版日期:2007-04-25 发布日期:2007-04-25
  • 作者简介:杨文斌(1968-),男,博士研究生,环评程师,主要从事环境评价、生态修复教学与研究。E-mail:ywb2002702@yahoo.com.cn
  • 基金资助:

    教育部科技创新工程重大项目培育基金(705824);江苏省重点科技专项(BM2002701);安徽师范大学青年科研基金(2004xqn15)

On Temporal-spatial Variability of Water Quality and Environmental Stress of Kuncheng Lake in Changshu City

YANG Wen-bin1,2, WANG Guo-xiang1, ZHANG Li-min3, CAO Yun1, PAN Guo-quan1   

  1. 1. College of Goegraphy Sciences, Nanjing Normal University, Nanjing 210046, China;
    2. College of Environmental Sciences, Anhui Normal University, Wuhu 241000, China;
    3. Jiangsu Provincial Academy of Environmental Sciences, Nanjing 210036, China
  • Received:2006-04-05 Revised:2006-12-18 Online:2007-04-25 Published:2007-04-25

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被引次数

27 | 6

摘要： 采用综合指数法对近年来昆承湖水质变化趋势进行了分析,用模糊数学综合评价法对该湖2005年水质进行评价,用等级聚类法进一步分析了其水质的空间差异,用TSIM方法分析了昆承湖富营养化状况。结果表明:1998—2004年间,昆承湖污染总体上呈加重趋势,2003年污染最严重,在各污染因子中,氮污染负荷最大;昆承湖为Ⅴ类水或劣Ⅴ类水体;由于陆源污染差异和围网养殖的影响,湖区污染程度北湖>湖西区>南湖区;昆承湖TSIM>70,呈现较严重富营养化。并分析了昆承湖所承受的巨大环境压力。

关键词: 水环境, 时空变异, 综合指数, 等级聚类, 昆承湖

Abstract: Kuncheng Lake is one of the key freshwater lakes of Changshu City in Jiangsu Province.Temporal-spatial variability of water quality of the lake is analyzed by comprehensive index method,fuzzy mathematics and hierarchical clustering method,while eutrophication of the lake is assessed by TSIM indexes.The results show that quality of the lake water has degraded gradually in recent years,and has attained to or been worse than grade-Ⅴ;among all indexes,the total nitrogen pollution is most prominent;due to difference of terrestrial sources pollution and effects of encircling gear cultivation,pollution in northern and western parts are more serious than in southern part in this lake;and Kuncheng Lake has been subject to eutrophication.Non-point source,point source,domestic sewage pollution etc.of the lake are evaluated in this paper.

Key words: comprehensive index, hierarchical clustering, Kuncheng Lake, water environment, temporal-spatial variability

中图分类号: 

  • X824