A novel flood management strategy to plan eco-industry development in areas of coastal land-subsidence in Taiwan

作者：Su Hui Chen^*; Lin Hau I

来源：Canadian Journal of Civil Engineering, 2010, 37(4): 553-561.

DOI：10.1139/L10-001

• island lake eco-town program
• salt tolerant plants
• coastal wetland
• land subsidence
• sea intrusion
• eco-industry

Because of limited freshwater resources, urban and industrial areas in Taiwan are often given priority for allocation of water resources. Accordingly, residents in rural regions usually pump groundwater for irrigation and daily needs. Continuous land subsidence has resulted in the elevation of the ground surface to be lower than the sea level, which has led to frequent flooding and created wetland habitats. In addition, seawater intrusion has damaged the soil, which has made the land difficult to farm. This study proposes a novel concept called the Island Lake Eco-town Program that would send the surface runoff from stormwater into a flood buffer wetland through land elevation modification and the necessary levee construction. Except for the use of stormwater to leach salt from the soil, we propose growing salt tolerant crops. Yunlin County of Taiwan has been selected as a study area to evaluate the feasibility of the proposed method. This study also demonstrated how to evaluate the available production of rice growth in saline soils.

• 出版日期2010-4