E3S Web Conf.
Volume 68, 2018The 1st Sriwijaya International Conference on Environmental Issues 2018 (1st SRICOENV 2018)
|Number of page(s)||7|
|Section||Mitigation and Adaptation in Climate Change in Wetland|
|Published online||27 November 2018|
Evaluation of Land Subsidence Impact at Lowland Areas Using Analitycal Hierarchy Process (AHP) Method
1 Postgraduate Program of Environmental Science, Universitas Sriwijaya, Palembang, Indonesia
2 Civil Engineering Departement, Andalas University, Padang, Indonesia
3 Minning Engineering Departement, Universitas Sriwijaya, Palembang, Indonesia
4 Civil Engineering Departement, Universitas Sriwijaya, Palembang, Indonesia
5 Physics Departement, Universitas Sriwijaya, Palembang, Indonesia
* Corresponding author: andriani,email@example.com
Land subsidence is a problem that often occurs in lowland areas. The impact of land subsidence causes losses in the economic, physical, ecological and social aspects. The impact of land subsidence could be felt directly and indirectly by the people, so an evaluation of the most frequent (dominant) impacts needs to be done. One method that could be use for assesment using AHP, using pairwise comparisons can be obtained the most frequent (dominant) land subsidence impact. From the results of the study indicate that the direct impact due to land subsidence (weight 0.608)) is more dominant than the indirect impact (0.392). Based on the value of each parameter, three dominant land subsidence impacts are infrastructure damage with a value of 0.387, an increase in the cost of infrastructure construction and maintenance with a value of 0.193 and a flood of 0.129. The results of observations and ground checking at the Tanjung Api-Api area, there was damage to several floors of residents' homes, damage to road and tilt of trees which were damaged in the economic field was the most dominant impact. While floods and seawater intrusion are not dominant in this area because the area is located in the tidal area.
© The Authors, published by EDP Sciences, 2018
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