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-9- <br />drainageways. Gentle sloping topography Within the basin lends <br />• itself to enlargement of adjacent wetland areas and <br />diversification of wetland types. For example: <br />1) with simple exclusion of livestock, lateral extent of <br />wetlands may naturally amplify. If livestock removal is <br />scheduled in the near future, it may be advisable to contact the <br />Corps and request credit for wetland enhancement. Pre-application <br />wetland credit, also referred to sa wetland "banking", can be <br />negotiated between the Corps and AWC. <br />2) minor earthwork and introduced plantings can extend these <br />wetlands even further if hydrologic requirements can be met with <br />natural flows. Additional hydrologic studies may be required to <br />insure success. <br />Although not considered "in kind" replacement, an open water <br />pool creates a type of aquatic ecosystem providing many functions <br />including wildlife and fishery habitat, food chain support, <br />nutrient retention and removal, and sediment trapping. In <br />addition, creation of a reservoir pool can result in development <br />of fringe wetlands. Some wetland can be expected to develop <br />naturally while other wetland can be encouraged with grading, <br />construction of islands, installation of check-dams, and <br />introduced plantings. Fringe wetlands are not entirely <br />successful in situations where the reservoir water level <br />fluctuates widely. <br />~• <br />• <br />