Spatial variability analysis of combining the water quality and groundwater flow model to plan groundwater and surface water management in the Pingtung plain.

• Main Authors: Ching-fang Chen, 陳慶芳
• Other Authors: Jui-sheng Chen
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/48664520851993794647

碩士 === 國立中央大學 === 應用地質研究所 === 102 === The groundwater is very rich in the Pingtung plain and a main water supply source for drinking, irrigation and aquaculture demands. However, because the concept of sustainable use of groundwater resources is weak, excessive pumping of groundwater is common in this area, resulting in the occurrence of increasingly serious the problems in land subsidence and sea water intrusion. Therefore, management and conservation of groundwater resources in the Pingtung plain have become a very important issue. This study aims to conjunct use of groundwater and surface water in the Pingtung plain based on water quality and quantity, and assess the locations of the suitable decreasing groundwater extraction. The study results could establish a management and development plan of low-impact groundwater resources for the multi-purposes, and prevent decreasing groundwater tables and the occurrence of the land subsidence and sea water intrusion in the Pingtung plain. This study carried out the simulation of groundwater flow using MODFLOW in the Pingtung plain after model. After model calibration, the developed groundwater flow model can be used to predict the variation of groundwater flow for specified situations. The research findings can provide a plan reference of regional water resources supplies for government administrators and reach the sustainability of water resources development.