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Title: Mangroves Land Cover Changes along North Coast of North Sumatra from 1990-2016
Authors: Rui Xiang TEO
Keywords: Mangroves, Land use and Land cover (LULC), Oil palm, Threats, Remote sensing, Conservation
Issue Date: 2017
Citation: Rui Xiang TEO (2017). Mangroves Land Cover Changes along North Coast of North Sumatra from 1990-2016. ScholarBank@NUS Repository.
Abstract: Mangroves are important as they provide many ecosystem services for people, such as food and carbon sequestration. However, they are highly threatened and are declining globally. There have been various drivers of deforestation of mangroves around the world with aquaculture being the largest culprit. Oil palm plantations have been identified to be the main cause of mangroves deforestation in Sumatra, particularly North Sumatra. However, no study has been done to look in-depth into the mangroves found along the north coast of North Sumatra. This study therefore seeks to inform the status of mangroves along the north coast of North Sumatra using remote sensing techniques. Detection of mangroves was done using LANDSAT imagery from 1990 to 2016. This provided the changes in mangroves over the years and the conversions made to mangroves. Results has shown that the north coast of North Sumatra has lost approximately 11,109 ha from 1990 to 2016. Oil palm constitutes most of the losses of mangroves over the years. This threat is significant as it is relatively new when compared to the global threat of aquaculture. Furthermore, it brings along possible implications of land grabs and environment degradation as observed with oil palm and terrestrial forests or peatlands. Results also showed that it might not be economical and beneficial for the local communities with the conversion of mangroves to oil palm plantations. A more comforting finding is the sign of regeneration and recovery of mangroves found along the coast and in abandoned aquaculture ponds. Conservation efforts by the Indonesian government to prevent deforestation in mangroves had proven to be insufficient. More needs to be done to engage the people living along the north coast of North Sumatra. Monitoring and enforcement are also required to conserve the existing mangroves.
Appears in Collections:Bachelor's Theses (Restricted)

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