摘要: This manuscript consists of two parts. Part I describes the methodological design, project scoping and site selection procedures, analytical sequences to solve various instream flow and project impact problems, and the various tec... 展开 This manuscript consists of two parts. Part I describes the methodological design, project scoping and site selection procedures, analytical sequences to solve various instream flow and project impact problems, and the various techniques for compiling, displaying, and interpreting the results of a study. Part II contains techniques for assembling hydrological data and anticipating channel changes due to a change in flow regime or sediment yield, methods of stimulating physical microhabitat conditions at different streamflows, and an overview of channel modifications to increase habitat availability. Stream habitat can be defined in terms of macrohabitat or microhabitat conditions. Macrohabit characteristics include temperature, water quality, sediment size and load, channel shape, slope, and flow regime: characteristics that affect the longitudinal distribution of species and create longitudinal gradations in the microhabitat characteristics along the stream. Microhabitat characteristics refer to the distribution of depth, velocity, substrate, and cover within a specific area of the stream. 收起