Abstract
Investigations were carried out to review tree planting activities within the Lagos Island Local Government Area of Nigeria. The city is a center of commercial activity within a hot tropical environment. Efforts have been made by both governmental and private bodies to promote tree planting within the area in mitigating the effects of urbanization on the environment particularly in the area of climate change. However, it became necessary to assess the tree planting activities so as to properly place its achievements and positive contributions to the environment. The review is also to highlight the areas where more efforts are needed. An enumeration of existing trees was carried out with the aim of assessing the distribution, specie types and density of coverage. A handheld GPS device was used to acquire the coordinates of trees which were then mapped. Further analysis using GIS was done. Interviews with tree planting officials and public volunteers were also carried out. A total of 293 trees was identified within the study area which is about 8.7 km2 in size. The result indicates a paucity of trees in the area despite the various tree planting efforts. A high mortality rate of trees was observed. Further findings indicated that the public’s desire to support, manage and maintain the planted trees was poor. It was observed that the tree planting activities were seen as a curse rather than a blessing by market men and women within the study area. This study suggests more public enlightenment and that edible species should be planted in place of exotic ones being used.
Highlights
Urbanization and deforestation are two main activities that have increased the concentration of greenhouse gases in the atmosphere
This study has focused on Lagos Island Local Government Area which is one of the 20 local authority areas in Lagos State
All the planted trees are located around the periphery of the local government area (LGA) on the western axis of the island where the trees were laid out along the Ring Road
Summary
Urbanization and deforestation are two main activities that have increased the concentration of greenhouse gases in the atmosphere. Forests and vegetal cover are prominent among such resources. United States Environmental Protection Agency (US EPA, 2012) projected that CO2 emissions from energy use are to increase between 40 to 110 percent between 2000 and 2030 noting that human activity is directly or indirectly responsible for the release of six to seven billion metric tons of carbon annually. Carbon dioxide (CO2) absorbs energy from the Sun and releases it back into the atmosphere. This greenhouse effect keeps the Earth warmer than it would be if this process did not occur
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