Located in one of the most rapidly developing areas in China, Taihu Lake watershed is undergoing an accelerated process of urbanisation. Concomitant to fast economic bloom and urban expansion is the deterioration of water quality. The eutrophication of Taihu Lake has become a major environmental concern of the region. The main objective of this paper is to summarize the effects of urbanization on eutrophication of the lake. In addition to the increased discharge of domestic wastewater there are also some indirect impact of urbanization on the nutrient status of surface water. Among them are decreased utilization of organic manure, increased dosage of chemical fertilizer, the shift of scattered livestock and poultry breeding to highly concentrated ones, higher runoff due to more impermeable ground, and the encroachment of wetland in which a significant amount of nutrients can be removed from water. All of these can lead to a larger contribution of non-point source N and P to water bodies. To mitigate these negative effects of urbanization on environment some practicable options have been proposed by the authors.
GAO Chao, ZHU Ji-Ye, DAI Ke-Wei, GAO Song, DOU Yi-Jian
. Impact of Rapid Urbanization on Water Quality and Related Mitigation Options in Taihu Lake Area[J]. SCIENTIA GEOGRAPHICA SINICA, 2003
, 23(6)
: 746
-750
.
DOI: 10.13249/j.cnki.sgs.2003.06.746
[1] 车秀珍,尚金城,陈 冲. 城市化进程中的战略环境评价(SEA)初探[J]. 地理科学,2002,21(6):554~557.
[2] Preston C A. The impact of urbanisation on water quality in the Lane Cove River, Sydney, New South Wales: A comparison of urban and non-urban catchments[J]. Australian Geographical Studies, 1995,33(1):19-30.
[3] Reinelt L, Horner R, Azous A. Impacts of urbanization on palustrine wetlands — research and management in the Puget Sound region[J]. Urban Ecosystems, 1998,2: 219-236.
[4] Parker J T C, Fossum K D, Ingersoll T L. Chemical characteristics of urban stormwater sediments and implications for environmental management, Maricopa County, Arizona[J]. Environmental Management, 2000,26(1): 99-115.
[5] Wang L Z, Lyons J, Kanehl P, et al. Impacts of urbanization on stream habitat and fish across multiple spatial scales[J]. Environmental Management, 2001,28(2): 255-266.
[6] 范成新. 太湖水体生态环境历史演变[J]. 湖泊科学, 1996,8(4):298~304.
[7] Dokulil M, Chen M, Cai Q. Anthropogenic impacts to large lakes in China: the Taihu example[J]. Aquatic Ecosystem Health and Management, 2000,3: 81-94.
[8] 顾小平,邹 军,胡丽娅,等. 江苏城镇发展报告[M],南京: 东南大学出版社,2000,94.
[9] 高俊峰,闻余华. 太湖流域土地利用变化对流域产水量的影响[J]. 地理学报,2002,57(2):194~200.
[10] 林泽新. 太湖流域水环境变化及缘由分析[J]. 湖泊科学,2002,14(2):111~116.
[11] 金相灿,叶 春,颜昌宙,等. 太湖重点污染控制区综合治理方案研究[J]. 环境科学研究,1999,12(5):1~5.
[12] 王 华,陈荷生,秦 忠. 太湖流域省界水体水环境污染状况及对策建议. 水资源保护,2002,(2):60~62.
[13] 秦伯强,吴庆农,高俊峰,等. 太湖地区的水资源与水环境—问题、原因与管理[J]. 自然资源学报,2002,17(2):221~228.
[14] 高 超,张桃林,吴蔚东. 太湖地区农田土壤养分动态及其启示[J]. 地理科学, 2001,21(5): 428~432.
[15] 董元华,徐 琪. 江苏省稻田养分循环的时空变异. 见:周健民. 农田养分平衡与管理. 南京:河海大学出版社,2000. 146~150.
[16] 杨 毅,刘 敏,许世远,等. 上海城市周边地区主要环境问题及对策[J]. 长江流域资源与环境,2002,11(2): 155~159.
[17] Marsh W M. Landscape Planning: Environmental Applications[M]. New York: John Wiley & Sons, 1998. 201-221.
[18] 张毅敏,张永春. 利用人工湿地治理太湖流域小城镇生活污水的可行性探讨. 农业环境保护,1998,17(5): 232~234.
