Mountain rivers / Ellen Wohl.

Format:

Book

Author/Creator:

Wohl, Ellen E., 1962-

Series:

Water resources monograph ; 14.

Water resources monograph ; 14

Language:

English

Subjects (All):

Rivers.

Mountains.

Physical Description:

v, 320 pages : illustrations, maps ; 23 cm.

Place of Publication:

Washington, DC : American Geophysical Union, [2000]

Contents:

Characteristics of mountain rivers 1

Overview of the development of mountain science 5

Overview of the development of fluvial geomorphology 11

Overview of the development of stream biology 14

Purpose and organization of this volume 16

2. Mountain Drainage Basins 19

Slope processes 23

Controls on slope morphology 23

Downslope pathways of water 24

Downslope pathways of sediment 26

Channel initiation and development 30

River chemistry 32

Dissolved nutrients 36

Organic matter and gases 37

Trace metals and pollutants 38

Valley morphology 43

Basin morphometry 44

Basin morphometry and hydrology 44

Hydraulic geometry 48

Longitudinal profiles and channel incision 49

Quaternary changes 55

Terraces 59

3. Channel Processes 63

Hydrology 63

Glacier- and snowmelt 63

Spatial hydrologic patterns 66

Discharge estimation and flow state 71

Paleoflood indicators 73

Hydraulics 78

Resistance coefficient 79

Grain and form resistance 82

Velocity and turbulence 85

Bed shear stress 90

Sediment processes 92

Bed sediment characterization 92

Sediment entrainment 98

Mechanics of bedload transport 103

Downstream bedload transport patterns, rates, and frequency 106

Bedload transport equations 112

Bedload yield and sediment budgets 116

Processes of deposition 122

Suspended sediment 124

Large woody debris 127

Channel stability and downstream trends 131

Debris flows 131

Floods 138

4. Channel Morphology 149

Morphologic variability 149

Channel classification systems 154

Step-pool channels 157

Plane-bed channels 162

Pool-riffle channels 162

Knickpoints and gorges 166

Braided channels 170

5. Mountain Channel Biota 173

River ecology 173

Aquatic communities 173

Riparian communities 176

The hyporheic zone 179

Conceptual models 180

Biological stream classifications 184

Mountain rivers 188

A case study of human impacts: the Columbia River 191

6. Mountain Rivers and Humans 195

Types of impact 195

Indirect impacts 196

Timber harvest and road building 196

Grazing 198

Crops 200

Urbanization 200

Lode mining 201

Climate change 202

Direct impacts 203

Beaver trapping 203

Removal of large woody debris, and tie drives 204

Dams and flow regulation 207

In-channel mining 209

Hazards 214

River management 227

7. Field Data, Please 231.

Notes:

Includes bibliographical references (pages 235-314) and index.

ISBN:

0875903185

OCLC:

43894214