冰封期和非冰封期达里诺尔湖营养盐分布特征分析  

Spatial Distribution of Nutrients in Dali Lake during Ice-laying and Non-ice-laying Period

作　　者：王利明[1] 甄志磊[1] 于瑞雪[1] 胡其图 

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018 [2]赤峰市克旗达里诺尔国家级自然保护区生态旅游有限公司,内蒙古赤峰025373

出　　处：《节水灌溉》2015年第2期37-39,共3页Water Saving Irrigation

基　　金：内蒙古自治区重大科技项目(20091408)

摘　　要：为了揭示内蒙古达里诺尔湖中营养盐的时空分布规律,在湖区布设了监测点,分别在冰封期和非冰封期采集了冰样和水样,并对其营养盐含量和时空分布进行了化验和分析。结果显示,在冰封条件下,达里诺尔湖水体中TN和TP的含量是其上覆冰体中的含量的9.1倍和3.6倍,在水平方向上,冰封期A7点水体和冰体中的TN和TP的浓度为全湖区中最大,而非冰封期A7点氮磷含量相对较小,这可能是因为A7点挺水植物茂密,植物生长期净化作用较强和人类活动污染综合影响的结果。In order to find out the spatial distribution characteristics of nutrients in the lake of Dali,nutrients in both the ice and water body were monitored all over the lake area during both the ice-laying and non-ice-laying periods.The samples were taken at the designed monitoring points.The analysis results showed that the concentrations of TN and TP were 9.1times and 3.6times higher in the water body than that in the ice layer,respectively.Meanwhile,TN and TP had a relative higher concentration at the monitoring point A7 than that at other points in the ice-laying period.However,the concentrations of TN and TP were lower than that at other points during the non-ice-laying period.This could be the result from both the pollution effect of human activities and the purification effect of emerging plant in the growth period,which was well developed at the monitoring point A7.

关 键 词：达里诺尔湖 冰封期 非冰封期 分布特征 

分 类 号：X172[环境科学与工程—环境科学]