Stream Depletion Potential Index (SDPI) Structurized by Coupled Water Cycle System using Structural Equation Model (SEM)

作者: Seohye Choi , Jin Won Park , Seung Oh Lee

DOI: 10.1016/J.PROENG.2016.07.578

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摘要: Abstract Land use change and poor management of water resources along with in precipitation patterns have resulted depleted supplies, falling tables, shrinking stream flow to the extent ecologically unsustainable levels. In this regard, procedure calculating depletion potential index (SDPI) is introduced evaluate degree applied for sub-basins South Korea. We defined as decline level a mainly by perturbation tables. By considering various influence variables coupled human natural system (CHANS), eight indicators - precipitation, dry days, effective basin area, impervious environmental supplied dams, usage, groundwater usage return were selected. Furthermore, since effects structures are altered regional characteristics, weights calculated using three different structural equation models (SEM). As result, some areas vulnerable especially western Han river, central southern Nak-Dong river Yeong-San river. The would contribute prioritization policy related not only conservation but also ecosystem including aquatic plant life.

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