湖北省典型浅水湖泊冬季氮的空间分布特征研究——以洪湖和武汉东湖为例  

The spatial distribution of Nitrogen in typical shallow lakes in winter of Hubei province

作　　者：余成[1,2] 任宪友[1] 班璇[1] 张亮[1] 杜耘[1] 

机构地区：[1]中国科学院测量与地球物理研究所湖北省环境与灾害监测评估重点实验室,武汉430077 [2]中国科学院研究生院,北京100049

出　　处：《华中师范大学学报（自然科学版）》2011年第3期490-496,共7页Journal of Central China Normal University：Natural Sciences

基　　金：中国科学院知识创新工程重要方向项目(kzcx2-yw-141);湖北省自然科学基金项目(2009CDB219)

摘　　要：为研究浅水湖泊冬季氮的空间分布特征,2010年冬季在湖北省两个典型的浅水湖泊(湖北省最大的远离城市的湖泊———洪湖和湖北省最大的城市湖泊———武汉东湖)进行了采样,分析得到湖水中总氮、氨氮、硝酸盐氮和亚硝酸盐氮的浓度值.结果表明,两个湖泊中氨氮浓度最高,硝酸盐氮次之,亚硝酸盐氮浓度最低,且洪湖冬季总氮、氨氮和硝酸盐氮浓度平均值大于东湖,亚硝酸盐氮浓度平均值则小于东湖.通过ARCGIS空间插值,得到两个湖泊冬季不同形态氮的空间分布图.结果表明,氨氮的空间分布趋势与总氮一致.排污口附近和受人类活动影响大的区域,各种形态氮的浓度值偏大.To study the spatial distribution characteristics of nitrogen in shallow lakes,： the samples in two typical shallow lakes （Honghu Lake and East Lake） were analyzed in winter in 2010. Honghu I.ake is the largest lake away from city in Hubei province, East Lake is the largest urban lake in Hubei province. Through the analysis in the laboratory, the total nitrogen, ammonia nitrogen, nitrate nitrogen and nitrite nitrogen of two lakes were obtained. The results indicated that, in two lakes, the concentration of the ammonia nitrogen was the highest, the nitrate nitrogen second, and nitrite nitrogen the lowest. In addition, the average concentration of total-nitrogen, ammonia nitrogen and nitrate nitrogen in Honghu Lake were greater than these in East Lake in winter, the av- erage concentration of nitrite nitrogen of Honghu Lake is lower than the one in East Lake in winter. The spatial distribution patterns of different nitrogen species in two lakes in winter were studied by the ARCGIS spatial interpolation. The results indicated that, the spatial distribution of the concentration of ammonia nitrogen was in agreement with the one of total nitrogen. The concentration of various forms of nitrogen near the sewage outlets and the space deep influenced by human activity were bigger.

关 键 词：洪湖 东湖 氮 冬季 空间分布 

分 类 号：P9[天文地球—自然地理学] X8[环境科学与工程—环境工程]