Remote Sensing Analysis of Impact of Fuzhou City Expansion on Water Quality of Lower Minjiang River, China

  • College of Environment and Resources; Institute of Remote Sensing Information Engineering; Fuzhou University, Fuzhou, Fujian 350108

Received date: 2009-11-02

  Revised date: 2010-02-03

  Online published: 2010-07-20


The models for estimating suspended sediment concentration (SSC) of the lower Minjiang River have been established and applied to reveal the SSC distribution and dynamics of the river from 2001 to 2006. It has been found that the expansion model of the city, which was planned to expand eastward and southward, has no significant impact on the SSC of the lower Minjiang River. The increase in SSC has only been found in the river portion between Kuaian and Mawei. In general, the area of increased SSC accounts for only 9.44% of the study water area during the period. On the other hand, the area of constant SSC and decreed SSC adds up to 90.6%. These indicate that the water quality of the studied river portion was generally improved. The river passing through the main urban area of Fuzhou was not notably affected by the urban expansion. The decline of the water quality between Kuaian and Mawei was due largely to intense soil erosion caused by the building up of several new industrial estates by the river shore areas.

Cite this article

WEN Xiao-le, XU Han-qiu . Remote Sensing Analysis of Impact of Fuzhou City Expansion on Water Quality of Lower Minjiang River, China[J]. SCIENTIA GEOGRAPHICA SINICA, 2010 , 30(4) : 624 -629 . DOI: 10.13249/j.cnki.sgs.2010.04.624


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