A decade of mangrove recovery at affected area by the 2004 tsunami along coast of Banda Aceh city

Friendly City 4 'From Research to Implementation For Better Sustainability'

地球科学;经济学

Onrizal^1 ; Mansor, M.^2

Faculty of Forestry, Universitas Sumatera Utara, Medan

20155, Indonesia^1

School of Biological Sciences, Universiti Sains Malaysia, Penang

11800, Malaysia^2

关键词: Affected area;    Coastal area;    Coastal protection;    Green belts;    Ground truthing;    Human activities;    Mangrove forest;    Spatial and temporal analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/126/1/012121/pdf
DOI  :  10.1088/1755-1315/126/1/012121

来源: IOP

【 摘 要 】

Banda Aceh (BA) is the capital of Aceh Province, Indonesia. It was the most affected areas by the 2004 tsunami. Before the natural catastrophe, most of the BA mangroves disturbed by human activities and remaining mangroves were fragmented and had a low density of trees. Therefore, the objectives of this study were to calculate the impact of the tsunami on mangrove and subsequently to evaluate the mangrove recovery based on spatial and temporal analysis and ground truthing method within the period 11 years in intertidal areas of BA. Three regions of BA coastal areas were selected, namely Kuala Cangkoy, Gampong Jawa and Lambada coasts. Before the tsunami, the mangrove forests in BA were only 13.6% of BA coastlands and fragmented. Approximately 48.9% of the mangroves have destroyed due to the tsunami. The BA mangroves at 5 and 11 years after tsunami were 66.5% and 81.3% relative to the data before tsunami, respectively. It means that the BA is very vulnerable due to the future tsunami occur. Therefore, the mangrove restoration in BA needs to be improved and maintain based on green belt concept for coastal protection as well as productivity of estuarine ecosystem.