NDLI: Soil erosion and pollutant loss of Danjiangkou city in south China based on $^{137}Cs$ technique

Content Provider	IEEE Xplore Digital Library
Author	Zhang Lihua Zhang Yanyan Li Hui
Copyright Year	2010
Description	Author affiliation: Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China (Zhang Lihua; Zhang Yanyan; Li Hui)
Abstract	Danjiangkou city is the main part of Danjiangkou reservoir area which is the catchments area for the South-to-North Water Transfer (middle line) project in China. Soil erosion and the subsequent pollutants loss are important influencing factors on its water quality. In this paper, soil erosion rate were analyzed based on 137Cs tracer technique, and the mathematic models were simulated among 137Cs contents and the organic matter, total phosphorus, heavy metals. The 137Cs reference inventory in the study area was 2153.46Bq m-2. Predicted soil erosion rates for different land use varied from 599.07 t km-2 year-1 to 6055.5 t km-2 year-1, the highest erosion rate was observed in dry land distributed on hilly areas, followed in sequence by cultivated slope land, kale yard land, paddy land and grassland. High correlation was apparent between 137Cs content and soil organic matters (R=0.721), soil Cu (R=0.751), soil Cr (R=0.886), soil Pb (R=0.799), soil Zn (R=0.756) and soil Ni (R=0.724), Low correlation was apparent between 137Cs contents and total phosphorus contents based on all the soil sample (R=0.297), but correlation coefficient are higher than 0.6 in the single land use area.
Starting Page	1900
Ending Page	1903
File Size	309467
Page Count	4
File Format	PDF
ISBN	9781424477371
e-ISBN	9781424477395
DOI	10.1109/MACE.2010.5536614
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Soil erosion Total phosphorus Mathematics Soil pollution Zinc Heavy metals Analytical models Danjiangkou city $^{137}Cs$ tracer techniques Cities and towns Chromium Reservoirs Water pollution Organic matters Mathematical model Water resources
Content Type	Text
Resource Type	Article

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