In mined land rehabilitation, the topsoil plays a very important role not only as a growth medium for plants but also a bank for indigenous plant seeds. However, because most topsoils are stockpiled for longer periods during mineral exploitation, their physical, chemical and biological properties may be altered by the time of rehabilitation. This results in soil nutrient depletion, soil degradation and lack of topsoil which are issue of great concern for most mining companies during disturbed mine site reclamation.  It is therefore important to amend disturbed minesoils to provide alternatives topsoil substitute for successful mine rehabilitation. In the light of the recent global concern for biodiversity loss and climate change, most human efforts have been aligned towards climate change mitigation and biodiversity enhancement including rehabilitation of degraded lands. Biochar has proven to be of great potential in disturbed soil amendment and climate change mitigation since apart from restoring soil nutrients, biological properties, stability and reducing heavy metal concentration also returns large amounts of carbon in plant biomass to the soil. This study therefore seeks to explore the potential of biochar produced from Bambusa vulgaris (a readily available local resource in the study area) for soil amendment and floristic diversity promotion at the Yongwa quarry site.

Cutting of bamboo and poles for experimental plot layout

In our recent visit to the team cut some pegs and bamboo for the lay out of the experimental plots. The poles for the pegs preparation was obtained from a nearby forest within the quarry. These poles were cut into smaller pieces and tapered at one end for firm fixing to the ground. The bamboo was also cut in to 2 m pieces to demarcate the boundaries of each plot.

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Clearing of site for experiment

The team in our recent visit to the quarry identified a suitable site for the establishment of our experimental plot.

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Biochar production

The team used the gathered dried bamboo sticks to produce biochar for soil amendment.

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Building of steel drum biochar reactor

The team used a 55 gallons steel drum to build a biochar reactor for biochar production for the project.

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Preperation of materials for biochar production and sterilization of poultry manure

The team gathered some dried and waste bamboo for the production of the biochar.

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Stakeholder consultation and project resources mobilization

The team in a reconnaissance survey to the study area organized a stakeholder consultation exercise to seek the views of the various stakeholders before the project implementation. The team also took advantage of the visit to identify and mobilize various local resources that may be needed for the study.

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Profile of team member

Profile of Mr. Dennis Dei-Kusi, a member of the research team for this project.

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Presentation of research proposal before national jury and other participants.

The team was represented by the team leader in Accra on the 19th of January, 2018 at the Centre for Climate Change and Sustainability Studies of the University of Ghana to present the project proposal before the national jury and other participants.

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Signing of data protection information and consent agreement and safety briefing

The team was represented by the leader (Mr Daniel Adusu) in Accra to sign the data protection information and consent agreement.

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