globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-18-3239-2014
Scopus记录号: 2-s2.0-84908415661
论文题名:
Endogenous technological and population change under increasing water scarcity
作者: Pande S; , Ertsen M; , Sivapalan M
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期:8
起始页码: 3239
结束页码: 3258
语种: 英语
Scopus关键词: Population statistics ; Waterworks ; Aggregate production ; Endogenous process ; Population change ; Production and consumption ; Technological advancement ; Technological change ; Technological innovation ; Technology change ; Societies and institutions ; civilization ; numerical model ; population decline ; population size ; population structure ; technological change
英文摘要: Ancient civilizations may have dispersed or collapsed under extreme dry conditions. There are indications that the same may hold for modern societies. However, hydroclimatic change cannot be the sole predictor of the fate of contemporary societies in water-scarce regions. This paper focuses on technological change as a factor that may ameliorate the effects of increasing water scarcity and as such counter the effects of hydroclimatic changes. We study the role of technological change on the dynamics of coupled human-water systems, and model technological change as an endogenous process that depends on many factors intrinsic to coupled human-water dynamics. We do not treat technology as an exogenous random sequence of events, but assume that it results from societal actions.

While the proposed model is a rather simple model of a coupled human-water system, it is shown to be capable of replicating patterns of technological, population, production and consumption per capita changes. The model demonstrates that technological change may indeed ameliorate the effects of increasing water scarcity, but typically it does so only to a certain extent. In general we find that endogenous technology change under increasing water scarcity helps to delay the peak of population size before it inevitably starts to decline. We also analyze the case when water remains constant over time and find that co-evolutionary trajectories can never grow at a constant rate; rather the rate itself grows with time. Thus our model does not predict a co-evolutionary trajectory of a socio-hydrological system where technological innovation harmoniously provides for a growing population. It allows either for an explosion or an eventual dispersal of population. The latter occurs only under increasing water scarcity. As a result, we draw the conclusion that declining consumption per capita despite technological advancement and increase in aggregate production may serve as a useful predictor of upcoming decline in contemporary societies in water-scarce basins. © 2014 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78156
Appears in Collections:气候变化事实与影响

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作者单位: Department of Water Management, Delft University of Technology, Delft, Netherlands; Department of Civil and Environmental Engineering and Department of Geography, University of Illinois, Urbana-Champaign, IL, United States

Recommended Citation:
Pande S,, Ertsen M,, Sivapalan M. Endogenous technological and population change under increasing water scarcity[J]. Hydrology and Earth System Sciences,2014-01-01,18(8)
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