Features of sampling sites in the headwater stream of the Qingjiang River.
|Sites||Land use type||Distance from the fountainhead (km)||Land used for urban, rural, industrial, mining, and residential purpose (km2)||Description|
|1||Intact shrubs and forests||0.75||0.33||The most upstream site on the stream transect was located in a sparsely populated area.|
|2||Fields and village||18.25||1.0||Potentially contaminated with manure, farmland fertiliser, and other materials.|
|3||Fields, village, and town||66.65||4.64||Potentially contaminated with manure, farmland fertiliser, and other materials.|
|4||Urban fringe||77.55||12.16||Wastewater treatment plant located approximately 0.3 km upstream of the sampling site. Tailwater flowed into the stream.|
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