Journal of Forests

Published by: Conscientia Beam
Online ISSN: 2409-3807
Print ISSN: 2413-8398
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No. 1

Evaluation of the Biomass of the Green Oak (Quercus Rotundifolia) of the Central Middle Atlas: Case of the South Jbel Aoua Forest (Morocco)

Pages: 11-21
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Evaluation of the Biomass of the Green Oak (Quercus Rotundifolia) of the Central Middle Atlas: Case of the South Jbel Aoua Forest (Morocco)

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DOI: 10.18488/journal.101.2018.51.11.21

Mohamed EL MDERSSA , Hassan BENJELLOUN , Omar ZENNOUHI , Laila NASSIRI , Jamal IBIJBIJEN

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Mohamed EL MDERSSA , Hassan BENJELLOUN , Omar ZENNOUHI , Laila NASSIRI , Jamal IBIJBIJEN (2018). Evaluation of the Biomass of the Green Oak (Quercus Rotundifolia) of the Central Middle Atlas: Case of the South Jbel Aoua Forest (Morocco). Journal of Forests, 5(1): 11-21. DOI: 10.18488/journal.101.2018.51.11.21
The present study is carried out on the green oak forest of Jbel Aoua South, in the Central Middle Atlas. The objective of this work is to estimate the dry biomass of these stands while characterizing this zone in terms of soil and floristic potential. According to the results obtained, the estimated biomass production is 42,70t/ha, based on 30 sample trees using the dimensional analysis method, or an energy equivalent of 192.15106 kcal/ha, which represents a potential income of 3260 to 3586 DH/ha/year. The forage value of the green oak in the forest of Jbel Aoua South is 372 FU/ha. The soil studied is of the para-rendzine carbonate type with a sandy loamy texture, rich in potassium and moderately low in phosphorus.
Contribution/ Originality
This study is one of the very few studies which have investigated the matter of estimating the forest biomass of green oak forests in Morocco. This reality is leading to a growing interest in carbon sequestration projects based on woody species that store it in their biomass.

The Value of Selected Ecosystem Services: A Case Study of East Mau Forest Ecosystem, Kenya

Pages: 1-10
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The Value of Selected Ecosystem Services: A Case Study of East Mau Forest Ecosystem, Kenya

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DOI: 10.18488/journal.101.2018.51.1.10

D.K. Langat , E.K. Maranga , A.A. Aboud , J.K. Cheboiwo

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D.K. Langat , E.K. Maranga , A.A. Aboud , J.K. Cheboiwo (2018). The Value of Selected Ecosystem Services: A Case Study of East Mau Forest Ecosystem, Kenya. Journal of Forests, 5(1): 1-10. DOI: 10.18488/journal.101.2018.51.1.10
The ecosystem services from Kenya’s forest ecosystems have remained largely unmeasured and undervalued. Consequently, the benefits they provide are ignored in most forest management and conservation decisions. This has led to degradation and conversion to alternative uses. To provide a sound basis for decision making in forest management, it is important to estimate economic values provided by East Mau. This study relied on data collected from households using structured interviews and secondary data from published and unpublished sources. The total indirect use values (soil functions, hydrological functions, climate regulation values) from East Mau forest ecosystem was about US$219 million (KES 20billion). The economic values of nutrient cycling, erosion control, water flow and quality regulation were US$13.30, US$ 4.50 ha-1yr-1, US$ 1421.03 ha-1yr-1 and US $12.83 HH-1yr-1 respectively. The annual value for carbon sequestration and oxygen generation was US$3308.05 ha-1yr-1 and 1365.13 ha-1yr-1 respectively. These results provide valuable information on the magnitude of the selected ecosystem services that could be relevant in decision-making concerning conservation and management of East Mau forest ecosystem for enhanced ecosystem services and livelihoods.
Contribution/ Originality
This study is one of very few studies which have quantified indirect use values of forest ecosystem in Kenya. The study has provided valuable information on the magnitude of the selected ecosystem services relevant to sustainable conservation and management of forest ecosystems for enhanced ecosystem services and livelihoods