Preface ........................................................ ix
Introduction: Supplying the population as societal and
scientific challenge ............................................ 1
Diana Hummel
Part A: The analytical framework
Diana Hummel, Christine Hertler, Steffen Niemann, Alexandra
Lux, Cedric Janowicz
1 The demographic background .................................. 11
Changes in the discursive scenery ........................... 11
The growing asynchronal development of global demographic
changes ..................................................... 13
Demographic transitions ..................................... 19
Impacts of demographic changes on society and environment ... 21
Population dynamics as subject of scientific disciplines .... 25
Demography and the population-environment-nexus ............. 28
2 The central analytical concept: Supply systems .............. 37
The basis of sustainable development ........................ 38
The dynamics of societal relations to nature ................ 40
Social-ecological systems ................................... 43
Conceptual model of supply systems .......................... 47
Social-ecological problem complexes within supply systems ... 51
Peculiarities of and linkages between, water and food
supply systems 55 — Social-ecological transformations ....... 57
3 Research object: Interactions between demographic
processes and transformations of supply systems ............. 59
Demographic factors relevant to supply systems .............. 59
Modeling related problems ................................... 62
Problems related to the dynamics of demographic processes ... 63
Regulation related problems ................................. 66
Case studies ................................................ 68
Part В: Case studies
Christine Hertler
1 Modeling food supply and demography in prehistoric human
populations ................................................. 73
A challenge: Reconstructing prehistoric populations ......... 74
Hominins as users in supply systems ......................... 76
Habitats and resource dynamics .............................. 83
Early hominins in their habitats ............................ 87
Hominin migrations .......................................... 92
Conclusions ................................................. 98
Steffen Niemann
2 Spatial aspects of supply: Migration, water transfer, and
IWRM ........................................................ 99
The densely populated north of Namibia ..................... 103
Migration and resource-distant population concentration .... 105
IWRM and its specific spatial conception ................... 113
Area of alimentation* and 'area of consumption ............. 118
Conclusion ................................................. 124
Cedric Janowicz
3 The world goes urban: Food supply systems and
urbanization processes in Africa ........................... 129
Global hunger and the Malthusian legacy .................... 131
The world goes urban: Urbanisation processes in the 21st
century .................................................... 136
Feeding African cities: Accra as case study ................ 140
Conclusions ................................................ 158
Alexandra Lux
4 Shrinking cities and water supply .......................... 161
Facets of demographic shrinkage ............................ 162
Effects of demographic trends on water consumption ......... 164
Consequences for water supply—learning from eastern
Germany .................................................... 171
Impulses for future decision-making. Uncertainty and
adaptability ............................................... 174
Conclusions: Designing infrastructure using the concept
of supply systems .......................................... 178
Diana Hummel
5 Population changes, water conflicts, and governance in
the Middle East ............................................ 181
Resource scarcity, population dynamics and conflict ....... 183
Population dynamics the Jordan River Basin ................. 185
Water supply systems in the Jordan River Basin ............. 194
Potentials and risks of a virtual water strategy ........... 202
Conclusion 209
Part C: Synthesis
Diana Hummel, Christine Hertler, Cedric Janowicz, Alexandra
Lux, Steffen Niemann
1 Synopsis of case study results ............................. 213
Summary and discussion of case study results ............... 213
Demographic changes examined in the case studies and
their relevance for supply systems ......................... 221
Interactions among population dynamics and supply
systems .................................................... 226
2 Building sustainable supply systems: Requirements and
prerequisites .............................................. 233
Social-ecological transformation and regulation of supply
systems .................................................... 234
Challenges for the future regulation of supply systems ..... 236
Adaptivity and regulation capabilities of supply systems ... 242
3 Conclusions and perspectives ............................... 249
References ................................................. 255
List of figures and tables .................................... 291
About the authors ............................................. 293
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