Mapping and analysis land-use and land-cover changes during 1996-2016 in Lubuk Kertang mangrove forest, North Sumatra, Indonesia

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

地球科学;经济学

Basyuni, M.^1 ; Fitri, A.^2 ; Harahap, Z.A.^2

Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Jl. Tri Dharma Ujung No. 1, Medan-North-Sumatera

20155, Indonesia^1

Department of Aquatic Resource Management, Faculty of Agriculture, Universitas Sumatera Utara, Medan-North-Sumatera

20155, Indonesia^2

关键词: Bruguiera Gymnorrhiza;    Coastal management;    Emission reduction;    Land use and land cover change;    Land use/land cover;    Mangrove forest;    Oil palm plantations;    Sumatra , Indonesia;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/126/1/012110/pdf
DOI  :  10.1088/1755-1315/126/1/012110

来源: IOP

【 摘 要 】

Mangrove forest plays a significant role for biogeochemical carbon cycle in the context of climate change along the tropical coastal area. The present study analyzed the land-use and land-cover changes from 1996, 2006 and 2016 in Lubuk Kertang mangrove forest, Langkat, North Sumatra, Indonesia. Mangrove diversity in Lubuk Kertang consists of fifteen species, Acanthus ilicifolius, Avicennia marina, A. lanata, A. officinalis, Bruguiera gymnorrhiza, B. sexangula, Ceriops tagal, Excoecaria agallocha, Lumnitzera racemosa, L. littorea, R. apiculata, R. mucronata, Scyphiphora hydrophyllacea, Sonneratia caseolaris, and Xylocarpus granatum. The land use/land cover consists of seven classes namely, mangrove forest, river, residential, paddy field, oil palm plantation, aquaculture, and open space area. A land use change matrix showed that the decrease of mangrove forest 109.4 ha from 1996-2006 converted to aquaculture 51.5 ha (47.1%). By contrast, mangrove lost 291.2 ha during 2006-2016, with main driver deforestation was oil palm plantation 128.1 ha (44%). During twenty years mangrove forest has been lost more than 400.4 ha, which is equal to 20.02 ha/year. On the other hand, oil palm plantation and aquaculture have been increased 155.3 ha and 114.1 ha during 1996-2016, respectively, suggested that both land-uses are mainly responsible for mangrove deforestation. These data are likely to contribute towards coastal management planning and practice and mitigating actions for emission reduction scenario.