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Water quality in the upper Han River basin, China: The impacts of land use/land cover in riparian buffer zone

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Abstract.
Vegetated riparian zones adjacent to rivers and streams, can greatly mitigate nutrients, sediment from
surface through deposition, absorption and denitrification, yet, human activities primarily land use practices have dramatically reduced the capacity. In this study, 42 sampling sites were selected in the riverine network throughout the upper Han River basin (approximately 95,200 km2) of China. A total of 252water sampleswere collected during the time period of 2005–2006 and analyzed for physico-chemical variables and major ions. Correlation analysis, principal components analysis and stepwise least squares multiple regression were used to determine the spatio-temporal variability of water quality variables and in particular their correlations with land use/land cover in the 100 m riparian zone along the stream network.
The basin in general has a better water quality in the dry season than the rainy season, indicated by
the primary pollutants including CODMn and nitrogen. Major ion compositions display large spatial and
seasonal differences and are significantly related to land use and land cover in the riparian zone, while
riparian landscape could not explain most of the water quality variability in T, pH, turbidity, SPM and
CODMn. The research could provide help develop sustainable land use practice of the riparian zone for
water conservation in the basin.

Keywords:
Water quality
Riparian
Land use and land cover
Han River
Physico-chemicals

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 165 (2009) 317–324

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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