Open Access
Table 1
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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