高尔夫球场不同养护方式对球场湖水的影响机制

Influence Mechanism of Different Conservation Methods on Lake Water of Golf Course

连续2a在雨、旱季,采集3个球场11个监测点的地表水,用科学的实验法检测及分析了球场湖水中重金属Cr、Zn、As、Cd、Pb、Mn、Hg质量浓度及CODcr、BOD5、TP、NH3-N的质量浓度。研究表明:3个球场内湖的Cr及南洋河球场内湖NH3-N、TP含量均值是雨季大于旱季,而东山和观澜湖球场内湖NH3-N、TP、CODcr、BOD5质量浓度均值及3个球场内湖的Hg质量浓度均值则是雨季小于旱季。采用轻度污染的水源进行灌溉,如果控制化肥农药的使用量,对球场内湖进行生物净化处理,球场内湖水体的污染能得到有效控制;暴雨可增加水体中氧的含量,有效降低球场内湖水体中的CODcr、BOD5质量浓度;热带地区高温高湿环境有利于农药的降解,3个球场内湖水体中所检测的农药残留均未超标。

In order to discuss the effect of turf conservation on surface water in golf course. We collected the surface water from 3 golf course and 11 monitoring points in two consecutive years of rain and dry season.And we used the scientific experiment to measure and analyze the contents of Cr, Zn, As, Cd, Pb, Mn, Hg and CODcr, BOD5, TP and NH3-N in the surface water inside and outside the golf course. The results showed that the contents of Zn, As, Cd, Pb and Mn in the water of all monitoring sites did not exceed the limit of national class Ⅱ for surface water. And compared with the National Class Ⅲ surface water limits, Guanlanhu Stadium in addition to Cr and NH3-N does not appear outside the standard, but the contents of Hg, TP, CODcr, BOD5,and Cr, Hg, NH3-N, TP, CODcr and BOD5 in other fields were all over-standard. In addition, three golf course and 11 monitoring points of the indicators detection range： Cr（17.1-76.2） μg/L,Hg（0-0.855.2） μg/L, NH3-N（0.065-1.516） μg/L, TP（0.03-0.119） μg/L, CODcr（5.923-72.4） μg/L,BOD5（1.4-8.9） μg/L. The contents of Cr in three golf course of the inner lake and NH3-N,TP in the Nanyang River golf course＇s inner lake were higher than that in the dry season. But in rainy season,the mean values of NH3-N, TP, CODcr, BOD5 in Dongshan and Guanlanhu golf course＇s inner lake, and also, the contents of Hg in three golf course of the inner lake are less than that in dry season. The results showed that the pollution of golf course＇s inner lake can be effectively controlled by controlling the use of pesticides and biological purification of lakes in the course of irrigation when using light polluted water sources. After 15 days, the water was purified by the basalt and the thalia dealbata Fraser. The purification rate of TP, COD, BOD, NH3-N was 77.5%, 55.56%, 70.76%, 11.18%, respectively.The high temperature and rainy season rainstorm in the tropics are favorable for the degradation of N and the dilution of TP in water. However, if the soil permeability is poor and the terrain is low, the contents of NH3-N and TP in the lake water will increase during the rainy season. And heavy rain can increase the content of oxygen in water and effectively reduce the content of COD and BOD in golf course＇s lake water. At the same time, the tropical high temperature and high humidity environment is conducive to the degradation of pesticides, three golf courses＇ lake water body pesticide residues were not exceeded.