少雨季节高尔夫球场周围地表水特征分析

Analysis of ground water quality characteristics in golf course during the dry season

本研究以海口东山地区一家营业近18年的球场作为研究靶点,采用实验法、对比分析法及单因子污染指数法,分析高尔夫球场周围地表水水质特征。结果表明,在少雨季节,球场人工湖水的色度、浊度、余氯、总磷及重金属的浓度高于农田沟渠水,与国家地表水环境质量Ⅲ类水限值相比,球场内湖化学需氧量(COD)、总磷、汞(Hg)、铬(Cr)含量出现超标;球场草坪和内湖的防渗设计能有效地防止雨水和灌溉水往球场外围下渗;球场西侧水库上、中、下游所含的余氯、亚硝酸盐氮、氨氮和总磷的浓度表现为上游>中游>下游;研究区地表水所含的重金属除水库上游的Hg外,其他测点都高于背景值;水库水与国家地表水环境质量Ⅱ类水质限值相比,上游COD和总磷超标,中游总磷和Pb超标,水库下游水质各项指标均在Ⅱ类水质限值内;球场内外水体农药的残留没有超标。

In the present project,the qualities of the ground water in the nearby of the golf course located in Dongshan district in Haikou used for nearly 18 years were analyzed using different methods including experimental method,comparative analysis and single factor pollution index.The results showed that the color degree,turbidity,residual chlorine,total phosphorus and concentration of heavy metals of the sampled water from golf course were higher than the corresponding index of farmland ditches water from same composition during dry season.The contents of phosphorus,mercury,chromium and COD(Chemical Oxygen Demand)of water from the lake in golf course exceeded the standards of the national ground water quality classⅢ.The turf and the internal artificial lake in golf course can effectively prevent infiltration of rainwater and irrigation water into the perimeter of the stadium.The concentrations of residual chlorine,nitrite nitrogen,ammonia nitrogen and total phosphorus in the water from reservoir on the west side of the stadium decreased in the following order:upstream>midstream>downstream.Except with the mercury content in the water from the upstream of the reservoir,the heavy metal contents in the water from other research areas were higher than the background level.The concentrations of COD and total phosphorus in water from upstream,total phosphorus and lead in water from midstream and all indices in water from downstream met the standards of the national ground water quality classⅡ.The pesticide residue of inner and outer water of the stadium did not exceed the standard level.