: Kumkum Bhattacharyya
: The Lower Damodar River, India Understanding the Human Role in Changing Fluvial Environment
: Springer-Verlag
: 9789400704671
: Advances in Asian Human-Environmental Research
: 1
: CHF 132.40
:
: Sonstiges
: English
: 308
: Wasserzeichen/DRM
: PC/MAC/eReader/Tablet
: PDF

Interweaving the human aspects of river control with analysis of hydro-physical data, including historical data over the last few centuries, this monograph is a comprehensive evaluation of the Damodar's lower reaches. While the Damodar River isn't an exceptional tropical river, nor does it feature classic examples of river control structures, it is unusual and worthy of study due to the fact that nowhere else in the tropical world have riverine sandbars been used as a resource base as well as for permanent settlements. Based on their knowledge of river stages, the inhabitants have fine-tuned their land use to flood events, applying a concept of flood zoning to the riverbed. Every available space has been utilized rationally and judiciously.

This rare human-environmental study analyzes the remarkable way in which immigrants unfamiliar with the riverine environment have adapted to the altered hydrologic regime of the river. In doing so they have demonstrated a sophisticated understanding of the flood regime and the vagaries of an unpromising environment in their land use, cropping and settlement patterns. Spurred on by restricted social and economic mobility and sometimes political constraints, these self-settled refugees have learned to adapt to their environment and live with the  floods.

Bhattacharyya's text is particularly timely, as anthropogenic processes of this kind have not been adequately studied by   geographers.

Foreword 17
Foreword 29
Foreword 311
Preface13
Acknowledgments17
Conversion Factors20
Abbreviations21
Contents22
1 Purpose and Perspectives27
1.1 Purpose27
1.2 Perspectives42
References43
Personal Communication48
2 Introduction49
2.1 Geography of the Damodar River49
2.2 Geological Set Up51
2.3 Physiographic Divisions51
2.4 Soil52
2.5 Factors Behind Selection of the Lower Damodar as a Specific Studied Section52
2.6 Locational Reference of the Study Area55
2.6.1 Problem of Area Demarcation56
2.7 Review of Studies on the Damodar River57
2.8 Conceptual Background60
2.8.1 Controlled River60
2.8.2 Geomorphic Space and Landscape61
2.8.3 Geomorphic Environment61
2.8.4 Empiricism62
2.8.5 Environmental Determinism and Possibilism63
2.8.6 Culture63
2.8.7 Perception64
2.8.8 Social Space65
2.8.9 Land, Land Resources and Land Use66
2.8.10 Hazard67
2.8.11 Human Ecology69
2.8.12 Refugee70
2.9 Objectives71
2.10 Research Paradigm72
2.11 Applied Geomorphological and Human-Environment Issues74
2.12 Models and Methods75
2.13 Spatial Scale and Time Scale76
2.14 Technique and Tools76
2.14.1 Perception Survey77
2.14.2 Tools Used77
2.14.3 Detailed Mapping for 5 Years (1993--1997) and Updated During 2000 and 2001, 2007 and 200877
2.15 Selection of Variables and Indicators78
2.16 Data Base and Data Constraint79
2.17 Chapter Organization79
2.18 Working Steps79
References80
3 Flood and Water Resource Management in the Controlled Tropical River Damodar88
3.1 Tropicality of the Lower Damodar Environment88
3.2 Background of the Population Group92
3.3 The Damodar -- A Flood-Prone River92
3.4 Changing Courses of the Lower Damodar94
3.5 Flood History of the Lower Damodar River95
3.6 Policy Recommendation by National Commission on Floods98
3.7 Phases of Controlling the Lower Damodar98
3.7.1 Embankments99
3.7.1.1 Zamindary Period99
3.7.1.2 British Period99
3.8 Weirs, Sluices and Canals104
3.9 Post-British Period105
3.9.1 Damodar Flood Enquiry of 1944: Conception of the DVC106
3.10 Post-Independence Period107
3.10.1 Lower Damodar Scheme110
3.11 Impacts of Lateral Control Structures111
3.12 Impacts of Embankments112
3.12.1 Rising Riverbed112
3.12.2 Changes in Soil Composition in the Adjacent Riparian Tracts113
3.13 Consequences of the Removal of the Right Bank Embankment113
3.13.1 Changes in Fertility Status on the Right Bank114
3.13.2 Changing Cross Profile114
3.13.3 An Increase in Cross Section114
3.13.4 Opening Up of Hana or Spill Channels on the Right Bank114
3.13.4.1 Origin of the Begua and the Muchi Hana and Deterioration of the Amta Channel117
3.14 Impact of the Left Bank Embankment119
3.14.1 Drainage Congestion119
3.14.2 Reversal of Slope119
3.15 Summary122
References124
Personal Communication127
4 The Reservoired Lower Damodar River: A Hydro-Geomorphic Perspective128
4.1 Damodar: A ``Reservoir Channel''128
4.2 Impacts of Dams: Changing Flow Regime129
4.2.1 Daily, Monthly Mean, and Annual Flow Characteristics129
4.2.2 Changes in Peak Flow Characteristics135
4.2.3 Modification of Hydrographs in the Post-dam Period138
4.2.4 Flood Hydrology138
4.3 Changing Flood Behavior in the Lower Part of the Lower Damodar River144
4.4 Relationship Between Discharge and Rainfall in Pre-dam and Post-dam Periods146
4.5 Changes in Suspended Sediment Concentration149
4.6 Silting of the Reservoirs153
4.6.1 The Construction of an Upstream Dam155
4.7 Changing Channel Morphology155
4.7.1 Increases in the Sinuosity Index156
4.7.2 Planform Configuration158
4.7.3 Changes in Riverbed Slope160
4.8 Stabilization of Bars161
4.9 An Example of the Rate of Changes to the Channel Sandbars162
4.10 Shifting Bank Lines and Bank Erosion163
4.11 Present Condition of the Jamalpur Regulator163
4.12 Present Condition of Jujuti Sluice and Eden Canal163
4.13 Present Condition of the Ulughata Sluice164
4.14 Summary165
References166
Personal Communication170
5 Colonization Processes on the Lower Damodar Riverbed171
5.1 History of Colonization171
5.2 Background of Refugee Influx172
5.3 Phases of Colonization in the Lower Damodar Riverbed173
5.3.1 The First Phase of Colonization173
5.3.2 The Second Phase of Colonization175
5.3.3 The Third Phase of Colonization176
5.3.4 The Fourth Phase of Colonization176
5.4 Summary177
References177
6 The Controlled Lower Damodar River: A Social Perspective178
6.1 Understanding Human Role in Changing Riverine Environment179
6.2 Contemporary Riverbed Characteristics Between the Maithon Panchet Reservoirs and Barsul-Chanchai182
6.3 Land Use Planning in the Riverbed: Maithon Panchet Reservoirs to Barsul Chanchai183
6.3.1 Gangtikali183
6.3.2 Vivekanandapalli Squatters' Colony185
6.3.3 Damodar Char Mohana188
6.3.4 Ramakrishna Palli, Pallishri and Sitarampur Mana190
6.3.5 Bara Mana194
6.3.5.1 Land Use Characteristics and Flood Zoning