Management of Aquatic Resources in Large Catchments: Recognizing Interactions Between Ecosystem Connectivity and Environmental Disturbance
作者： J. A. Stanford , J. V. Ward
DOI: 10.1007/978-1-4612-4382-3_5
关键词:
摘要: Management within catchment basins must be approached with an empirically based understanding of the natural connectivity and variability structural functional properties riverine ecosystems. Rivers are four-dimensional environments involving processes that connect upstream-downstream, channel-hyporheic (groundwater), channel-floodplain (riparian) zones or patches, these differ temporally. Natural human disturbances, including biotic feedback (such as predation, parasitism, other food web dynamics), interact to determine most probable biophysical state ecosystem. Human disturbances can quantitatively determined by deviations from observed (baseline), but usually this requires long-term ecological data sets. A case history Flathead River-Lake system in Montana (USA) British Columbia (Canada) is summarized illustrate how at level organization. Owing complexities ecosystems cumulative effects rationale logistics obtaining often seem intractable excessively expensive. The naive alternative derive implement simplistic procedures agency specific result management actions interfere each other. We argue integrated needed propose some simple principles, beginning broader collegiate training for prospective managers.
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