Table 6 Spatial distribution of NPS nitrogen loads in different land use types (2005)
From: Spatial distribution of non-point source nitrogen in urban area of Beijing City, China
Type of land use | NPS nitrogen load (t) | Percent of the total load of UABC (%) | |
|---|---|---|---|
Agricultural land | Plough | 29.47 | 2.72 |
Garden plot | 4.47 | 0.41 | |
Woodland | 43.93 | 4.06 | |
Grassland | 6.62 | 0.61 | |
Other farmland | 7.55 | 0.70 | |
Construction land | Land for roofed buildings | 743.24 | 68.62 |
Road | 40.01 | 3.69 | |
Independent industrial and mining area | 68.01 | 6.28 | |
Land for transport | 112.17 | 10.36 | |
Land for water conservation facilities | 5.85 | 0.54 | |
Unused land | 21.77 | 2.01 | |
| Â | UABC | 1083.09 | 100.00 |