Assessing land use and land cover change in coastal urban wetlands of international importance in Ghana using Intensity Analysis

Ekumah, Bernard; Armah, Frederick Ato; Afrifa, Ernest K. A.; Aheto, Denis Worlanyo; Odoi, Justice O.; Afitiri, Abdul-Rahaman

doi:10.1007/s11273-020-09712-5

Cited by 49 publications

(30 citation statements)

References 20 publications

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“…Similarly, the gains observed after 2015 could be an indication of some level of curtailment of these drivers. Ekumah et al [93] also found time interval changes for Densu Delta, Sakumono II and Muni-Pomadze Ramsar Sites.…”

Section: Changes In Wetlandsmentioning

confidence: 88%

“…The losses in wetland cover in the Greater Accra and Central Regions are likely due to anthropogenic factors. Ekumah et al [93] also reported losses in area for the Densu Delta and Sakumono II (Greater Accra Region) as well as Muni-Pomadze (Central Region) Ramsar Sites between 1985 and 2017. They attributed the decline in the two Ramsar Sites in the Greater Accra Region to rapid increases in the built-up LC (i.e., urbanization) and that at the Muni-Pomadze Site to combine urbanization and agriculture.…”

Section: Changes In Wetlandsmentioning

confidence: 97%

“…Besides impacting the quality and use of the water resources, drainage from polluted rivers can lead to pollution of estuaries and wetlands, leading to their deterioration and poor ecological functioning. Similarly, poorly planned urban development can seriously alter the hydrology of urban areas and lead to increased surface runoff, frequent flooding, pollution, as well as the deterioration of other land covers such as wetlands, as reported in the literature for Accra, Kumasi, Sekondi-Takoradi, and Tamale [94,98] and coastal wetlands in the Greater Accra and Central Regions [93].…”

Section: Opportunities For Sustainable Land Use and Developmentmentioning

confidence: 97%

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Land Cover Changes in Ghana over the Past 24 Years

et al. 2021

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Changes in land cover (LC) can lead to environmental challenges, but few studies have investigated LC changes at a country wide scale in Ghana. Tracking LC changes at such a scale overtime is relevant for devising solutions to emerging issues. This study examined LC changes in Ghana for the past almost two and half decades covering 1995–2019 to highlight significant changes and opportunities for sustainable development. The study used land cover data for six selected years (1995, 2000, 2005, 2010, 2015, and 2019) obtained from the European Space Agency. The data was analyzed using R, ArcGIS Pro and Microsoft Excel 365 ProPlus. The original data was reclassified into eight LC categories, namely: agriculture, bare area, built-up, forest, grassland, other vegetation, waterbody, and wetland. On average, the results revealed 0.7%, 131.7%, 23.3%, 46.9%, and 11.2% increases for agriculture, built-up, forest, waterbody, and wetland, respectively, across the nation. However, losses were observed for bare area (92.8%), grassland (51.1%), and other vegetation (41%) LCs overall. Notably, agricultural land use increased up to 2015 and decreased subsequently but this did not affect production of the major staple foods. These findings reveal the importance of LC monitoring and the need for strategic efforts to address the causes of undesirable change.

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Section: Changes In Wetlandsmentioning

confidence: 88%

Section: Changes In Wetlandsmentioning

confidence: 97%

Section: Opportunities For Sustainable Land Use and Developmentmentioning

confidence: 97%

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Land Cover Changes in Ghana over the Past 24 Years

et al. 2021

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“…Essentially, wetlands include swamps, marshes, bogs and many bottomland hardwood areas (Natural Resources Conservation Service 2012). They act as open spaces, ensure a balance in the ecosystem and serve as habitat for some endangered animal species (Greb et al 2006;Ryan and Ntiamoa-Baidu 2000;Ekumah et al 2020). They also provide habitat for high concentration of birds and flood prevention as well as storm protection (McInnes and Everard 2017;Vázquez-González et al 2019;Shutes et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Exploring the effects of rapid urbanization on wetlands: insights from the Greater Accra Metropolitan Area, Ghana

et al. 2021

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Wetlands are important ecological resources that provide immense socioeconomic and ecological services. Despite these services, their sustainability, especially in the cities in the Global South, is undermined by anthropogenic activities such as farming, sand and salt winning, among others. The region's rapid urbanization is expected to exacerbate the threats. However, in the Ghanaian context, only few studies have explored the effects of rapid urbanization on the availability and sustainability of this important environmental resource. To address this research vacuum, the present study employed mixed-methods to explore the effects of urbanization on the wetland ecosystem in the Greater Accra Metropolitan Area (GAMA) of Ghana. There results indicate a negative statistical association between rapid urbanization and the availability of wetlands in GAMA. Additionally, the results of the study have shown that land-use activities along wetlands undermine the quality and sustainability of this environmental resource. Given this context, the study recommends that the appropriate institutional regimes (such as the Environmental Protection Agency, Town and Country Planning Department and Accra Metropolitan Assembly) institute strict buffer restrictions along these wetlands to mitigate human encroachment as well as intensify awareness campaigns to expose people to the values and benefits of this important ecosystem.

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“…The most common application of intensity analysis is to investigate the land use change through time [21][22][23][24][25][26][27][28][29][30]. It can also be used to analyze other categorical research subjects.…”

Section: Introductionmentioning

confidence: 99%

The Intensity Analysis of Production Living Ecological Land in Shandong Province, China

Sun

Wang

et al. 2020

Sustainability

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Due to the limitedness of land, the coordinated development of production, living, and ecological (PLE) land is essential for sustainable development. A clear understanding of PLE land change is necessary given the increased human activities, especially in developing regions. This study first reclassified remotely sensed landuse maps in Shandong province into PLE land. Then the spatiotemporal change of PLE land between 2000 and 2015 was analyzed using spatial trajectory and intensity analysis methods. The results show that the rate of PLE land change in the interval of 2000–2005 was the highest, and it kept decreasing during 2005–2010 and 2010–2015. The overall quantity component accounts for more difference than the exchange and shift components for all intervals. At the category level, the largest quantity component of change was PE land loss, followed by LP land gain. LP land gain targeted PE land intensively in each interval. The loss of E land was mainly to PE land in terms of size, and to PL land in terms of intensity. The findings of this study contribute to a deeper understanding of the spatiotemporal transitions of PLE land in Shandong province, which could help policy making for PLE land regulation.

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Assessing land use and land cover change in coastal urban wetlands of international importance in Ghana using Intensity Analysis

Cited by 49 publications

References 20 publications

Land Cover Changes in Ghana over the Past 24 Years

Land Cover Changes in Ghana over the Past 24 Years

Exploring the effects of rapid urbanization on wetlands: insights from the Greater Accra Metropolitan Area, Ghana

The Intensity Analysis of Production Living Ecological Land in Shandong Province, China

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