西安市浐河下游湿地水文水质特征的初步分析  

Preliminary analysis of the wetland hydrology and water quality of the lower reaches of the Chanhe River in Xi'an

作　　者：海燕[1] 刘立萌[1] 刘晓玲[1] 

机构地区：[1]宝鸡市环境保护监测站,陕西宝鸡721006

出　　处：《宝鸡文理学院学报（自然科学版）》2010年第2期42-46,共5页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

摘　　要：目的针对西安浐河下游地区进行的湿地恢复工程,调查研究湿地恢复区的生态环境状况以及湿地水文水质特性,为中国西北地区湿地的恢复与重建提供基础数据和实践经验。方法采用野外实地观测获得水文资料和湿地恢复区的水质监测数据,分析研究湿地恢复区的水文水质变化情况。结果湿地水文过程受到浐河径流特性的影响,需要工程清淤措施来调控补给水源,湿地出水流量6×106m3/y,湿地水位在进水流量变化的影响下,呈现出阶段性涨落变化的趋势;湿地对浐河水质改善明显,总氮、总磷、化学需氧量等6项监测指标从原来的V类或劣V类水质改善达到或接近Ⅲ类地表水水质标准。结论以浐河为水源,将分布在河道外侧的采砂坑重建为湖泊湿地的方案可行,在恢复湿地地表径流的基础上,湖泊湿地得以重建,恢复区生态环境效益显著,为西北地区的湿地恢复提供了参考。Aim To study the present ecological state and the characteristics of hydrology and water quality of the wetland in the Chanhe River, Xi＇an, China catchment and provide the basic data and actual experience for wetland restoration and reconstruction of northwest China. Methods Using the data from field surveillance and water quality monitoring, analyse the characteristics of hydrology and water quality of the wetland. Results The results show that the hydrology of the wetland is affected by the runoff of the Chanhe River and the water supply needs artificial regulation. The wetland surface outflow was 6 × 10^6 m^3/y and the water level appeared periodic fluctuation under the influence of influent flow. Water quality monitoring data shows a decline of nitrogen, phosphors and organic pollution. Conclusion The restoration project of rebuilding laky wetland with water source of the Chanhe River is feasible and the wetland is reconstructed by restoring surface flows and it has vital significance in improving the environment and wetland restoration in the northwest China.

关 键 词：湿地恢复 湿地水文 湿地水质 

分 类 号：TV213.3[水利工程—水文学及水资源]