Table 1 |
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|
Environmental variables that describe hydrological and land surface conditions of the study area. |
|
| Variable |
Calculation |
|
|
|
| Wetness Index |
Calculated based on the local upslope contributing area and slope |
| Distance to High Order Stream |
Stream orders are calculated based on the reaches of a stream. A high order stream
is reached by streams ordered four or five. |
| Distance to Low Order Stream |
A low order streams is reached by streams ordered one, two, three and four. It also
may not be reached by other streams. |
| Elevation |
Derived from Digital Elevation Model |
| Slope |
Calculated as the rate of change in altitude |
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|
|
|
Li et al. International Journal of Health Geographics 2008 7:50 doi:10.1186/1476-072X-7-50 |
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