[1]郝敬锋,刘红玉,胡俊纳,等.不同土地利用类型对城市湿地水质的影响——以南京市紫金山山间小流域湿地为例[J].南京师大学报(自然科学版),2010,33(01):125-129.
　Hao Jingfeng,Liu Hongyu,Hu Junna,et al.Influence of Land Use on Water Quality in Urban Area——A Case Study of Zijin Mountain in Nanjing[J].Journal of Nanjing Normal University(Natural Science Edition),2010,33(01):125-129.
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不同土地利用类型对城市湿地水质的影响——以南京市紫金山山间小流域湿地为例()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第33卷
期数:
2010年01期
页码:
125-129
栏目:
地理学
出版日期:
2010-03-20

文章信息/Info

Title:
Influence of Land Use on Water Quality in Urban Area——A Case Study of Zijin Mountain in Nanjing
作者:
郝敬锋;刘红玉;胡俊纳;曹晓;
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, 江苏南京210046
Author(s):
Hao Jingfeng; Liu Hongyu; Hu Junna; Cao Xiao
Jiangsu Key Lab of Environment Change and Ecology Construction,School of Geography Science,Nanjing Normal University,Nanjing 210046,China
关键词:
土地利用;  城市湿地;  水质;  南京市
Keywords:
land use;  u rban we tland;  water quality;  Nanjing city
分类号:
X832;F301
摘要:
综合运用RS和GIS技术对南京市紫金山周边小流域进行边界提取、土地利用类型分析, 并且通过水样野外采集与实验室分析处理方法自2008年3月至2009年2月一年间对小流域所在水库水质进行监测. 通过计算水质指数(WQ I)得出其季节性变化规律, 结合该小流域土地利用类型特征, 揭示流域内土地利用类型与水质之间的关系. 结果表明: 各小流域内土地利用类型对下游水体水质影响显著. ¹ 水质指数(WQI) 季节性变化主要表现在: 上游有建设用地的小流域从春季到秋季期间WQ I有降低趋势, 从秋季到冬季又逐渐上升; 而无建设用地或者建设用地面积比例较小的小流域在夏季暴雨径流的影响下, 水质会逐渐改善, WQI有升高趋势. ? 小流域内建设用地对各小流域水体水质有负效影响. 而以景观林为主的苗圃对下游水体影响不大; 流域内林地、水库占流域面积越大, 其下游水体水质则相对较好, 对水质改善有着正效影响.
Abstract:
Th is study extracts the boundary of the small ca tchments, and ana lyzes of land use type of these sma ll catch2 ments around the Z ijinMounta in in Nan jingw ith the a id of remote sensing, GIS techniques. Water qua lity wasmon itored from March 2008 to February 2009 by the methods ofwater qua lity collection and ana lyzes in the laboratory. Statistical analysis and the seasonal va riation of thewate r quality indices (WQI) are used to illustra te the relationship be tween land use type and thewater qua lity in the study a rea. Results show tha t the typica l of the land use of the sma ll catchments a f2 fect the wa ter qua lity down streams obviously. ¹ The seasonal var iation of theWQI show tha t a ll of theWQI declined from spring to autumn and it wou ld be increased from autumn to winter exceptWum ing reservoir. It is because ra instorm ca rr ied lots of pollutant from the construction land to the downstream wa ter body during summer. ? Water qualitywou ld ge t worse when the usage of construction land got bigger and the wa ter qua lity wou ld get bette rwhen the forest land and reservoir land got b igger. So it cou ld be conc luded that the usage of construction land would obviously resu lt in thewater pollution wh ile the usage of forests land and land would keep it down.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 40871084). 通讯联系人: 刘红玉, 教授, 博士生导师, 研究方向: 景观生态学与湿地. E-mail:lhy8589@ 163. com
更新日期/Last Update: 2013-04-08