Distribution Characteristics of TN in Sediment of the Wuliangsu Lake, Inner Mongolia

Geoscience ›› 2009, Vol. 23 ›› Issue (1): 82-85.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Distribution Characteristics of TN in Sediment of the Wuliangsu Lake, Inner Mongolia

ZHAO Suo-zhi ^1,2,KONG Fan-ji²,ZHAO Jun²，WANG Xi-kuan ^1,2,LI Shi-bao²,ZHANG Qing²

1School of Water Resources and Environment, China University of Geosciences,Beijing100083,China； 2Institute of Geological Survey of Inner Mongolia Autonomous Region,Hohhot,Inner Mongolia010020,China

Received:2008-04-05 Revised:2008-12-01 Online:2009-02-20 Published:2011-12-21

Abstract

Abstract:

As a main source and sink of nitrogen from lake wetland ecosystem,lake sediment has an important significance for biogeochemical cycle of nitrogen.In recent years,the Wuliangsu lake area is shrinking and europhication becomes more and more serious.Aiming to the above problems,spatial distribution law of total nitrogen(TN) content and its geochemical characteristics in sediment are studied in this paper.TN content in the west of the Wuliangsu lake is higher than that of the east area;TN content decrease with depth in sediment profile of the Wuliangsu lake. N pollution in sediments of the Wuliangsu lake is caused by human activity; Eutrophication of the Wuliangsu lake started in 1990s.Studying the distribution law of nitrogen in lake sediment and its geochemical characteristics can provide scientific basis for the eutrophication control of the Wuliangsu lake.

Key words: TN, bed mud, distribution characteristic, Wuliangsu lake, Inner Mongolia

CLC Number:

X523
P641

ZHAO Suo-zhi KONG Fan-ji ZHAO Jun WANG Xi-kuan LI Shi-bao ZHANG Qing. Distribution Characteristics of TN in Sediment of the Wuliangsu Lake, Inner Mongolia[J]. Geoscience, 2009, 23(1): 82-85.

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Distribution Characteristics of TN in Sediment of the Wuliangsu Lake, Inner Mongolia

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