摘要
两淮采煤沉陷区水系结构修复对矿区水生态环境功能十分重要,研究归纳了塌陷湖泊"封闭"、河湖常年联通与季节性联通及河流-湖泊串联等多种不同水量调蓄和污染负荷模式.在两淮矿区各选取3个塌陷湖泊站点,分别为淮南潘谢潘集站(PXPJ)、潘谢顾桥站(PXGQ)和潘谢谢桥站(PXXQ),淮北东湖(HBDH)、淮北中湖(HBZH)和淮北南湖(HBNH),利用Vollenweider混合箱式模型研究了湖泊水体磷含量对水量调蓄和污染负荷的响应特征.模拟结果和塌陷湖泊水体实际磷含量水平状态吻合良好,两淮塌陷湖泊中总磷(TP)的质量浓度ρ(TP)能分别保持在Ⅲ类(ρ(TP)≤0.05mg/L)、Ⅳ类(ρ(TP)≤0.10mg/L)或Ⅴ类(ρ(TP)≤0.20mg/L)水平范围,从而实现不同的水体功能目标.建立良好的生态缓冲带,减少外源污染负荷输入,优化水系结构与调蓄方式是不同水质目标实现的3个重要方面.
Recovery of water system in Huainan and Huaibei coal mine areas is important to meet their functions of aquatic ecosystem.This research classified different relationships between coal mining subsidence lakes and local rivers,considering cases of separated subsided lakes,lakes connecting to rivers permanently or seasonally,and series of lakes connected by rivers.Patterns for water regulation and pollution loading were characterized.The Vollenweider model of completely mixed tanks for water quality was employed to simulate response of phosphorus concentration to pollutants loading patterns.Case studies of six lakes were taken as demonstration,including three lakes at Site PXPJ,PXGQ and PXXQ in Huainan coal mine areas,and three lakes at Site HBDH,HBZH and HBNH in Huaibei coal mine areas,Anhui Province.The simulation results fit well with the observed phosphorus levels in these lakes.Concentrations of total phosphorus（TP）in these lakes can meet differentiated standards of water quality for surface water in China,with respect to site-specific water functions for GradeⅢ（ρ（TP）≤0.05mg/L）,Ⅳ（ρ（TP）≤0.10 mg/L）and Ⅴ（ρ（TP）≤0.20 mg/L）,given theproper engineering and management practices.Three main aspects are important for water quality insurance,concerned in establishing ecological buffers surrounding lakes,reducing external river pollution load,and optimizing rive-lake structure and water regulation ways.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2015年第4期754-760,768,共8页
Journal of China University of Mining & Technology
基金
国家自然科学基金项目(41202242)
中国博士后科学基金项目(2014M560127)
安徽理工大学青年教师科学研究基金自然类重点项目(QN201426)
安徽省大学生创新创业计划训练项目(201310361126)
关键词
两淮矿区
塌陷湖泊
生态修复
河湖联通
磷
水质模拟
Huainan and Huaibei coal mine areas
subsidence lake
ecological rehabilitation
river-lake connection
phosphorus
water quality modeling
