Aboveground carbon storage in a freshwater swamp forest ecosystem in the Niger Delta

Igu, Nwabueze I.; Marchant, Rob

doi:10.1080/17583004.2016.1165355

Cited by 13 publications

(8 citation statements)

References 46 publications

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“…Since dynamics in land use change easily impacts ecosystem services over short time scales (Li et al, 2013) and can directly lead to overall changes at regional scale (Vidal-Legaz et al, 2013) for ecosystem services such as carbon storage, guided use of ecosystems to prevent intense impacts are advocated. Carbon storage is indeed an ecosystem service that ecosystem degradation-through forest loss, disturbance and modification affects greatly (Igu and Marchant, 2016); however, such impacts have direct effects on the above ground carbon (AGC) (through biomass removal or reduction) than the soil carbon store (in comparison with the AGC) that are not easily discernible. Variations in decomposition rate of the litter (depending on land use and ecosystem) can equally contribute to the time lag involved in soil carbon store changes even when ecosystems become modified.…”

Section: Resultsmentioning

confidence: 99%

Soil carbon dynamics in a humid tropical zone in SE Nigeria: Environmental influences and conservation prioritization

Igu¹,

Ayogu²,

Okolo³

2021

J. Geogr. Reg. Plann.

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Tropical landscapes are generally known to store much carbon in its varied ecosystems, but information required to prioritize and conserve areas with much soil carbon concentration is scanty. This study provides insight on the patterns of carbon storage and its dynamics in an extensive humid zone in SE Nigeria. Soil carbon data was downloaded from soil grids of 250 m carbon stocks for the first 30 cm of the soil profile and compared with the land use/cover, geology and digital elevation model of the region. Carbon estimates varied over the four epochs used and ranged from 29-177, 29-172, 12-172 and 4-177 tons/ha in 1992, 2001, 2010 and 2018, respectively. Even though land cover variation was quite distinct in the zone (between the northern zone with much cover and the southern zone with less), it was not seen as the major factor that influenced soil carbon in the zone. Much of the explanations on carbon concentration and variability were mainly from the geology of the zone which is categorized into six major classes. But three out of the categories were seen to dominate the carbon store: Ajali formation, Mamu formation and Nsukka formation. This exogenous factor (geology), which is not uniform, was seen as the major variable to consider in deciding areas that will be prioritized for carbon conservation in the zone. Proper land use strategies and policy frameworks that would help to maintain proper baselines and further enhance adequate carbon conservation were equally recommended.

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Section: Resultsmentioning

confidence: 99%

Soil carbon dynamics in a humid tropical zone in SE Nigeria: Environmental influences and conservation prioritization

Igu¹,

Ayogu²,

Okolo³

2021

J. Geogr. Reg. Plann.

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“…The forest had representative tree stands for each of the structural intervals or categories and a healthy juvenile/middle class tree population size (Figure 3), which is suitable for good recruitment and replacement for the mature and emergent populations. Such mature forests' with large trees are veritable assets in carbon sequestration for the region (Igu & Marchant, 2016) and useful in providing necessary ecosystem services that support the livelihood of its owners. Tree stems which ranged from 128 -409 stems per hectare (with a mean of 255) across the forest plots were within the range of 245 -467 stems per hectare, as reported for other tropical forests (Campbell et al, 1992).…”

Section: Discussionmentioning

confidence: 99%

Species Diversity and Structure of an Intact Freshwater Swamp Forest in the Niger Delta

Igu¹

2017

OJF

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Tropical forest ecosystems are generally seen as diverse ecosystems with rich biodiversity. However, how this applies to the freshwater swamp forests (especially in West Africa) is largely unknown. To verify how diverse this ecosystem is and how its structure varies in an intact forest landscape, one hectare forest plots were set up at 8 different points. This was used to collect information on the diversity and structure of the ecosystem. Consistent with the findings from other freshwater swamp forests, the ecosystem was seen to have a low species occurrence which ranged from 4 to 19 (mean value = 11 species) across the forest plots. Its diversity was equally low (mean = 1.66), unlike other tropical forest ecosystems. Stem heights varied as in mature tropical forest ecosystems; with the middle stratum recording the highest proportion of trees (54.63%) and the emergent layer having the least (0.83%). Its basal area, biomass and relative density were similar with other tropical ecosystems and equally had its highest species contribution from Leguminosae as in some other ecosystems as well. The ecosystem was seen to have features and characteristics that were common and similar with other tropical forest ecosystems, apart from its low diversity. Ensuring that effective and appropriate forest-tree species conservation measures are enhanced across the landscape are vital steps to securing the already existing (few) species and preventing species extinction across the ecosystem.

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“…FSF is part of the tropical rain forest and has an important contribution as climate change modulators. As a carbon storage zone, the FSF in the Niger Delta, for example, is capable of storing carbon on average 228.28 ton/hectare, a large storage capacity (Igu & Marchant, 2016). The ability to store carbon by the FSF depends on: 1) the ability of flora to absorb carbon from the atmosphere; 2) the material cycle flowing from living biota to dead biota; 3) subsequent deposition and storage processes in the earth (Harrison, 2013).…”

Section: Threat To Freshwater Swamp Forestmentioning

confidence: 99%

Sustainable management of freshwater swamp forest as an ecotourism destination in Indonesia: a system dynamics modeling

Sjaifuddin¹

2020

JESI

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As a freshwater swamp forest that still remains in Java, the existence of Rawa Danau as an ecotourism destination is important to be explored, because its utilization is not yet based on sustainable management principles. For this reason, a system dynamics modeling was then made that integrates various factors in the biophysical, social, and economic dimensions to obtain the best alternative for managing the future ecotourism destinations. Management alternatives are designed in three scenarios: deep ecotourism oriented to very strong/strong sustainability; shallow ecotourism oriented to weak sustainability; and mass tourism oriented to very weak sustainability. The results showed that deep ecotourism was the most suitable scenario to be implemented. Through this scenario, the control of several parameters that were successfully carried out during the 10 years of the simulation are as follows: 1) restrain the growth rate of tourist numbers so as not to burden the environment; 2) reforesting almost all forest land converted so that the restoration of forest functions goes well; 3) increase local community income so that the community gets adequate economic benefits; 4) increase environmental investment so that stakeholders benefit economically, ecologically, and socially in an integrated manner; 5) maintaining biodiversity at a high level; 6) maintain swamp water reserves at a very good level; 7) reduce the volume of solid waste so that it does not burden the environment.

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Aboveground carbon storage in a freshwater swamp forest ecosystem in the Niger Delta

Cited by 13 publications

References 46 publications

Soil carbon dynamics in a humid tropical zone in SE Nigeria: Environmental influences and conservation prioritization

Soil carbon dynamics in a humid tropical zone in SE Nigeria: Environmental influences and conservation prioritization

Species Diversity and Structure of an Intact Freshwater Swamp Forest in the Niger Delta

Sustainable management of freshwater swamp forest as an ecotourism destination in Indonesia: a system dynamics modeling

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