Environmental Engineering Reference
In-Depth Information
Present
Production
Land Cover Classes
Row Crops
Strip Intercropping
Perennial Herbaceous Cover
Woodland / Woody Cover
Water / Wetland
Urban / Residential / Roads
Water Quality
Biodiversity
Plate 10.16
(Fig. 10.16 on page 285) Present landscape (top right) and alternative future scenarios for the Walnut Creek
catchment area in Iowa, USA. In comparison to the present situation, note the increase in row crops at the expense of
perennial cover in the Production scenario. In the Water Quality scenario, note in particular the increase in perennial cover
(pasture and forage crops) and wider riparian buffers. Finally in the Biodiversity scenario, note the increase in strip
intercropping, the wide riparian buffers and the extensive prairie, forest and wetland restoration reserves. (From Santel-
mann et al., 2004.)
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