Groundwater Hydrology

Oral Abstract

An Integrated Modeling Approach to Assessing and Differentiating the Impacts of Climate and Human Activities on Coastal Water Resources

Wednesday, January 4
1:30 PM - 3:00 PM
Location: Chu Feng Hall

Water resources in coastal areas are sensitive to both climate change and human activities, as well as to their interactions. Assessing and differentiating the impacts of various factors are crucial to sustainable water resources management. In this study, a fully integrated surface water (SW)-groundwater (GW) model was built for the Luanhe Plain, a coastal area in the northeast of China. After calibration, the model can accurately reflect the complex hydrological processes in this area, and the modeling results showed that the intensive agricultural irrigation activities deeply altered the hydrological circle. A series of climate-human activity scenarios were hypothesized and evaluated with the calibrated model. It has been found, in the past several decades, the accelerated pumping was the main reason for decrease of groundwater storage, while the change of evapotranspiration was mainly controlled by the climate variability. The flow that the Luanhe River discharged into the Bohai Sea largely depended on the inflow from the mountain area, which reflects the climate conditions in the upstream Luanhe Basin and the effects of hydraulic projects. Future climate scenarios were also proposed, and their influences on the water resources were assessed based on the integrated model. It has been demonstrated that future potential climate change could result in a significant perturbation on the hydrological cycle, and the risk that the climate change aggravates the groundwater depletion is potentially high. In addition, the negative impact of climate change on the groundwater increases with the intensity of groundwater exploitation. Thus, pumping control is very critical for the local water resources management to adapt to the changing climate.

Send Email for Dapeng Feng

Send Email for Yi Zheng


Assets

An Integrated Modeling Approach to Assessing and Differentiating the Impacts of Climate and Human Activities on Coastal Water Resources



Attendees who have favorited this

Send Email for An Integrated Modeling Approach to Assessing and Differentiating the Impacts of Climate and Human Activities on Coastal Water Resources