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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 12, No. 2, 2015, pp. 445-454
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Bioline Code: st15039
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 12, No. 2, 2015, pp. 445-454
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Impact of land use and land cover dynamics on Zhalong wetland reserve ecosystem, Heilongjiang Province, China
Na, X.D.; Zang, S.Y,; Zhang, N,N, & Cui, J,
Abstract
In view of the significant hydrological and
ecological role of wetlands, an analysis was made on the
impact of land use and land cover dynamics on the spatial
status of Zhalong wetland, a Ramsar site located downstream
of Wuyuer River Basin in Northeast China. The
impact assessment analyzed multi-temporal changes in the
upstream land use/land cover characteristics of the wetland
watershed using remote sensing data of Landsat MSS/TM.
The multi-temporal land use/land cover statistics revealed
that significant changes have taken place in the Wuyuer
River Basin. In response to these upstream land use/cover
changes, the marsh landscape in Zhalong wetland has
showed changes in spatial extension, landscape pattern,
and water quality characteristics. The major impacts have
resulted from construction of a reservoir and water diversion
engineering that has altered the wetland hydrological
conditions and reduced the spatial distribution of the marsh
landscape. In addition, inputs of agricultural nutrients, and
industrial and human wastes from the upper catchments
have resulted in increased signs of eutrophication. This
study suggests that effective wetland hydrological restoration
measures are needed to avoid further deterioration of
this internationally important ecosystem.
Keywords
Land use/Land cover; Dynamics; Wetland ecosystem; Zhalong wetland
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