The Spatial and Temporal Distribution of Mangrove Forest Cover from 1973 to 2020 in Chwaka Bay and Menai Bay, Zanzibar

Mohamed, Mohamed Khalfan; Adam, Elhadi; Jackson, Colbert M.

doi:10.3390/app13137962

Cited by 2 publications

(1 citation statement)

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“…Several studies, e.g., Quinn et al [37], Kukkonen and Käyhkö [38], Käyhkö et al [39], Nicholson [40], Othman [41], Lugomela [42], Mchenga and Ali [43], Mohamed et al [44], and Mohamed et al [45], have been conducted in Zanzibar to study mangrove ecosystems. However, these studies have documented very limited or no information regarding analyzing the contribution of mangrove ecosystem services in Zanzibar.…”

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confidence: 99%

Assessing the Perception and Contribution of Mangrove Ecosystem Services to the Well-Being of Coastal Communities of Chwaka and Menai Bays, Zanzibar

Mohamed,

Adam,

Jackson

2024

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The mangroves in Zanzibar are crucial to the survival of the local population, as they provide essential ecosystem goods and services. However, the actual value of mangrove products is not easily recognized. As a result, it is chiefly concluded that mangrove forests should be converted to uses that generate directly marketable products. This research sought to assess the perception and value of mangrove ecosystem services to the local communities around the Chwaka and Menai Bays. Key informant interviews, focus group discussions, and household surveys were used to collect data. The chi-squared test and one-way ANOVA were used to compare the awareness and perception of mangrove ecosystem services, respectively. The results show that provisioning services were the mangrove ecosystem services most identified by the household surveys, i.e., c. 84%. Supporting, regulating, and cultural services were rated in that order by 46.2%, 45.4%, and 21.0% of the respondents, respectively. This study found that there were statistically significant differences between Chwaka, Charawe, Ukongoroni, Unguja Ukuu, and Uzi wards in terms of households’ awareness of regulating services (χ2 = 6.061, p = 0.014) and supporting services (χ2 = 6.006, p = 0.014). There were no significant differences in the identification of provisioning (χ2 = 1.510, p = 0.919) and cultural (χ2 = 1.601, p = 0.901) services. Occupations did not determine the reliance on mangrove ecosystem services (χ2 = 8.015; p = 0.1554). The approach used in this study can provide policymakers and land planners with a framework for the sustainable management of the ecosystem services provided by mangroves.

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Section: Introductionmentioning

confidence: 99%

Assessing the Perception and Contribution of Mangrove Ecosystem Services to the Well-Being of Coastal Communities of Chwaka and Menai Bays, Zanzibar

Mohamed,

Adam,

Jackson

2024

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Peatlands changes analysis in Banjar District using three decades of Landsat imagery

Nurlina,

Ridwan,

Muslimin

et al. 2024

J. Phys.: Conf. Ser.

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Peatlands are a multifunctional wetland ecosystem, so it is essential to know the changes in their presence. Observation of the changes in peatlands can be done in two ways, i.e., indirect and direct observation. Indirect observation can be done with remote sensing technology. This study aimed to analyze the distribution and peat land cover change from 1990 to 2020 and calculated the land’s rate changes. This research uses the maximum likelihood classification with seven classes of land cover input of agriculture, plantations, forests, bare lands, settlements, shrubs, and water bodies. The classification result covers a map of Banjar Regency peatlands covering 1990, 2000, 2009, and 2020, and then analyzes to know the land’s rate changes. The results of this research inform Banjar’s peatland area is 58,048.76 ha, which is spread over eight districts, i.e., Astambul, Beruntung Baru, Gambut, Martapura, Martapura Barat, Mataraman, Simpang Empat dan Sungai Tabuk. The land’s rate changes in 1990 and 2000; almost all of the land cover has the addition of wide each year, most of it is shrubs around 870.47 ha per year, only covering the reduction of forest land with an area of approximately 1,293.80 hectares per year. In 2000 to 2009 shows that four land covers experience and increase in area per year, namely settlements 11.71 ha, agriculture 30.69 ha, water bodies 6.76 ha and the largest oil palm plantation 1,098.5 ha. While those that experienced a reduction in area per year were bare land around 335.61 ha and shrubs around 812.11 ha. While the rate of change from 2009 to 2020 which experienced an increase in area each year was 15.19 ha of water bodies, 422,9 ha of bare land, 1,073.07 ha of oil palm plantations and around 1,508.2 ha of agriculture. While those that experienced a reduction in area per year were shrubs 3,184.2 ha, and settlement 32.76 ha. The data from these findings is crucial to the national wetlands inventory database for upcoming assessments, even though they offer valuable insights into using conservation measures in the context of wetland sustainability.

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The Spatial and Temporal Distribution of Mangrove Forest Cover from 1973 to 2020 in Chwaka Bay and Menai Bay, Zanzibar

Cited by 2 publications

References 50 publications

Assessing the Perception and Contribution of Mangrove Ecosystem Services to the Well-Being of Coastal Communities of Chwaka and Menai Bays, Zanzibar

Assessing the Perception and Contribution of Mangrove Ecosystem Services to the Well-Being of Coastal Communities of Chwaka and Menai Bays, Zanzibar

Peatlands changes analysis in Banjar District using three decades of Landsat imagery

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