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PurposeThe mainstream climate change community has primarily concerned itself with mitigation and adaptation strategies, both of which require monitoring and prediction. These four inter-connected response actions (mitigation, adaptation,... more
PurposeThe mainstream climate change community has primarily concerned itself with mitigation and adaptation strategies, both of which require monitoring and prediction. These four inter-connected response actions (mitigation, adaptation, monitoring and prediction) constitute the main strategies for managing climate change. This paper aims to weigh in on policies and societal coordination for effective management of the earth’s climate with respect to these four elements in Africa because of its socioeconomic peculiarities.Design/methodology/approachThe Delphi experts’ method backed by questionnaires was used to obtain relevant data for the study. The questionnaires were distributed to professionals dealing with issues related to climate change response and sustainability in various parts of the world, with a focus on Africa.FindingsWith respect to the strategies that are most needed for effective climate change actions in Africa, government’s policies, activities and decisions rank...
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Food security in Nigeria is presently in dire strait owing to several factors, such as skyrocketing energy prices, climate change, and terrorism. This study is aimed at revealing the role of the aforementioned factors in shaping food... more
Food security in Nigeria is presently in dire strait owing to several factors, such as skyrocketing energy prices, climate change, and terrorism. This study is aimed at revealing the role of the aforementioned factors in shaping food affordability and availability in the country. The study used descriptive statistics and coefficients of variation and determination to ascertain the change in the trend in these factors and their correlates to food security over time. From the results of our research team, we inferred that temperature increases, political instability, rising food prices and erratic energy supply have had distressing consequences in the areas of affordability, availability and stability of food supplies. We conclude that a rapidly growing population such as Nigeria's would need crucial interventions in increasing food production, mitigating the impacts of climate change, and buffering energy supplies. Ultimately, Nigeria needs to overhaul the important components of...
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Agriculture has shown a considerable capacity to adapt to climate change. Many adaptations occur autonomously without the need for conscious response by farmers and agricultural planners. However, it is likely that the rate and magnitude... more
Agriculture has shown a considerable capacity to adapt to climate change. Many adaptations occur autonomously without the need for conscious response by farmers and agricultural planners. However, it is likely that the rate and magnitude of climate change may exceed that of normal change in agriculture that specific technologies and management styles may need to be adopted to avoid the most serious of effects. Thus areas likely to be most vulnerable to climate variability can be spared from its impacts through implementation of appropriate adaptation measures such as development of indigenous technologies.Six hundred farmers from the six geopolitical zones of Nigeria were surveyed and they all possess different indigenous adaptation strategies ranging from swamp farming (Oyo State), application of neem seed (Kaduna State), soil erosion control (Enugu State), rainwater harvesting (Taraba State), land improvement (Cross River State) to farmland management (Benue State). They all have ...
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This study evaluated the level of household dependence on remittances, its uses and linkages with landscape/environmental conditions in South Eastern Nigeria. The study area is a landscape unit defined by the Idemili River Basin of... more
This study evaluated the level of household dependence on remittances, its uses and linkages with landscape/environmental conditions in South Eastern Nigeria. The study area is a landscape unit defined by the Idemili River Basin of Anambra State. The concept of socio-ecological systems provided the basis for an integrated assessment of remittances environment linkages using primary data from a survey of 840 households in 25 localities in the basin and landscape data from a Nigerias at 32 m resolution image dataset. Based on this, linear and non linear regression modelling of locality level relationships between four indicators of household remittances (HR) and a key landscape variable (vegetation cover density-VCD) was implemented. About 45 % of the households had access to remittances; 10 % of receiving households depended on it as their main income source; and over 87 % used the receipts mainly to meet basic household needs. Only 4 % of the households used it in activities that directly affected the vegetation cover. The linear and non linear relationships between the indicators of HR and VCD were generally weak (R2 < 0.250). However, the pattern of relationship was different for various indicators of HR. It was inverse for locality aggregate (total) and average HR and positive for level of household access to remittances/locality. This illustrates the complex relationship between remittances and landscape variables in the basin. The study shows that the impact of remittances on households and the environment in the region is both positive (through the alleviation of poverty and land pressure) and negative (through reduction of vegetation cover density).
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ABSTRACT Plantation agriculture has a long history of establishment in Cameroon and is increasing at an unprecedented rate with detrimental impacts on coastal estuarine forest landscape. Remote sensing data from Landsat imageries and... more
ABSTRACT Plantation agriculture has a long history of establishment in Cameroon and is increasing at an unprecedented rate with detrimental impacts on coastal estuarine forest landscape. Remote sensing data from Landsat imageries and geographic information system (GIS) techniques were used to analyse changes in the areal extent of plantations within the coastal Atlantic estuarine forest complex area of Cameroon between the periods 1986, 2000 and 2011 to ascertain the extent of deforestation due to plantation agriculture. Given the base year of 1986 (67,792 ha of plantation), the results showed a 67 and 47 % decrease in the dense coastal estuarine forest coverage in 2000 (14,032 ha) and 2011 (24,564 ha), respectively, in the area and an increase in the area occupied by plantations (51,295 ha in 2000 and 68,340 ha in 2011) giving an annual loss of 3.4 % estuarine forest complex and an increase in plantation area of 0.03 % from the periods 1986 to 2011. There is need for better plantation management practices and policies to curb further loss in estuarine forest cover with consequent implications on the Wouri estuary.
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Nigeria is experiencing adverse climate conditions with negative impacts on the welfare of millions of people. Persistent droughts and flooding, off season rains and dry spells have sent growing seasons out of track, in a country... more
Nigeria is experiencing adverse climate conditions with negative impacts on the welfare of millions of people. Persistent droughts and flooding, off season rains and dry spells have sent growing seasons out of track, in a country dependent on a rain-fed agriculture. The result is reduced water supplies for use in agriculture, hydro power generation and other users. It is widely believed that climate change is responsible for all these as reported in the 4th IPCC Assessment Report, which suggests that Africa will be worst hit by the effects of climate change of which Nigeria is a part. Farmers were facing a lot of climate change induced challenges on their farms of which flooding, erratic rainfall, high temperature and low crop yield are the most prominent. The Nigerian government have made efforts to curtail these challenges by promoting various adaptation measures. These include provision of improved crop varieties, fertilizers, irrigation schemes and geo-data. Most of these measures are not well received by the farmers due to cultural and religious sentiments, illiteracy, language barrier and unwillingness to change mode of farming. The paper assessed the adaptation measures and the barriers of adoption and proffered solutions for acceptance. The results of the study will be beneficial for agricultural ministries, departments and agencies in Nigeria and Sub-Sahara Africa.
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Research Interests: Environmental Science, Climate Change, Climatology, Climate variability, West Africa, and 11 moreMultidisciplinary, Quality Control, Global change, Developing Country, Statistical Significance, Geophysical, Climate Extremes, Instruments and Techniques, Rainfall Intensity, Regional Climate Change, and Diurnal Temperature Range
ABSTRACT This paper investigates how human activities have influenced and altered land cover. It also indicates that the nature of cultural substitution of the indigenous forest species have significance for the functioning of the earth... more
ABSTRACT This paper investigates how human activities have influenced and altered land cover. It also indicates that the nature of cultural substitution of the indigenous forest species have significance for the functioning of the earth system. It therefore attempts to quantify the ecological implication of land cover change consequent upon land use. The paper integrated a topographical map of 1969 and satellite imageries from Landsat MSS 1972, and Landsat TM 1991 and 2000 with ground truthing and socio-economic surveys to assess changes in forest resource use and land cover in south-western Nigeria. The study argues that land cover modification and conversion is directly related to loss of biodiversity and has negative effect on the ecological setting and that there is need to develop more environmentally and socially equitable approaches to forest management.
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This study examined the roadway characteristics of Road Traffic Crash (RTC) blackspots along Akure-Owo highway between 2012 and 2016 to proffer a spatial model for assessing the spatial dimensions of RTCs for Road Safety Management.... more
This study examined the roadway characteristics of Road Traffic Crash (RTC) blackspots along Akure-Owo highway between 2012 and 2016 to proffer a spatial model for assessing the spatial dimensions of RTCs for Road Safety Management. Global Positioning System (GPS) receiver and Road Survey were employed to acquire field data of the RTCs: site coordinates (x, y), their land uses, roadway characteristics, and furniture. Also obtained were the RTC records of the route from the Federal Road Safety Corps (FRSC) and the Nigeria Police and the Google Earth satellite imagery of the area from the archives of Airbus Defence and Space, France. ArcGIS techniques and multiple linear regression were employed to analyse the dataset. The study showed a statistical significance clustered pattern in the occurrence of RTC along the route (Moran&#39;s index=1, z=58.50, p=0.00). The study further indicated that the most potent road factors in the incidence of the RTCs are intersections, road curvature, and steep slopes. The study predicted that for every unit increase in road junction, curvature, and slope along the route, 16 crashes would likely occur. These indicate that to mitigate RTCs, road signs, pedestrian bridges, and traffic lights at intersections are indispensable along the highway. The markets at Shasha, Uso, and Amurin also need to be relocated. The redesigning of junctions and regular rehabilitation of roads is also crucial in reducing RTC.
To make the MDGs a reality, especially as it affects the built environment, and to conform with the UN Agenda 21 and Habitat Agenda summed up in the concept of urban physical sustainability, there is a need to rapidly improve the quality... more
To make the MDGs a reality, especially as it affects the built environment, and to conform with the UN Agenda 21 and Habitat Agenda summed up in the concept of urban physical sustainability, there is a need to rapidly improve the quality of decisions on land use, conversion and urban renewal in developing countries, especially with regards to physical developments. The potentials of SDSS in determining optimum sites for physical developments within the built environment was the focus of this study. The SDSS developed took into consideration existing and future planning scenarios with the aim of creating a sustainable built environment. To do this, a framework for capturing existing landuse was generated and the SDSS used to generate physical development expansion scenarios of the Obafemi Awolowo University, Nigeria. The system facilitated integrated procedures for determining optimal sites for incremental physical development in such a way as to minimize impact on other aspects of d...
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This study aimed at examining the trends in land use changes in 2002
Climate-Smart Agriculture (CSA) as an adaptation strategy that helps rural farmers adapt to climate change by making them resilient to its effects. SALM methodology is a CSA practice that promotes carbon sequestration, which in the long... more
Climate-Smart Agriculture (CSA) as an adaptation strategy that helps rural farmers adapt to climate change by making them resilient to its effects. SALM methodology is a CSA practice that promotes carbon sequestration, which in the long run increase farmers’ productivity. This study assessed SALM methodology using RothC model to calculate the effi- cacy of CSA on Umar Lere farm. Activity Baseline and Monitoring Survey was used to acquire data for a period of 3 years of practicing SALM methodology. Results showed that after 3 years of SALM adoption, the farm produced maize (2.6), soybeans (0.7), guinea corn (1.1), and tomatoes (1.7) tons/hectare/year respectively in 2015 compared to maize (1.2), soybeans (0.3), guinea corn (1.6), and tomatoes (0.7) tons/hectare/year respectively produced in 2012. The farm also recorded 56 trees sequestrating 10.2 tons of carbon dioxide per hectare in 2015 compared to 15 trees sequestrating 2.6 tons of carbon dioxide per year in 2012. In 3 years, Umar Lere farm significantly increased its crop yields from the project; RothC model shows that the modelled soil carbon stock changes increased significantly as a result of the adoption of SALM practices from around 0:5 tCO2 ha-1yr-1 in 2012 to 3:5 ha-1 yr-1 in 2015.
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Climate change has affected both the natural and human systems, of which the women in the rural areas and their livelihood practices are the mostly affected. This study was conducted in some selected rural communities of Osun state in... more
Climate change has affected both the natural and human systems, of which the women in the rural areas and their livelihood practices are the mostly affected. This study was conducted in some selected rural communities of Osun state in Southwest, Nigeria among women involved in different livelihood practices to find out issues about climate change impacts on the rural women such as: Are the rural women aware of climate change and its impacts? How prepared are they for climate change mitigation and adaptation strategies? Are there any socio-cultural barriers to combating climate change? The study therefore focused attention on their beliefs, attitude and perception about climate change. It also discussed the barriers their beliefs and attitude posed to the establishment and implementation of mitigation and adaptation strategies in the rural areas. Focus Group Discussions, in-depth interview and questionnaire were employed to capture awareness, actual beliefs and attitude, the effect of such attitude and beliefs on adopting mitigation and adaptation strategies. Data collected were analysed using Atlas.ti and SPSS. Most of the women in the rural areas are aware of the impacts of climate change in their environment, especially, on their livelihoods. However, the awareness level has not impacted on them positively to adopt any mitigation and adaptation strategies. This is due to their belief system that climate change is not a consequence of anthropogenic activities. Recommendations were made as to how these problems could be solved for the women in the rural areas to embrace mitigation and adaptation strategies.
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This paper examines the potential of cultivating fallows to fast-growing tree species as a means of sustaining fuelwood production in the humid parts of the tropics. A comparative analysis of self-propagated and cultivated fallows is... more
This paper examines the potential of cultivating fallows to fast-growing tree species as a means of sustaining fuelwood production in the humid parts of the tropics. A comparative analysis of self-propagated and cultivated fallows is made. The cultivated fallow tree studied is Gliricidia sepium (Jacq.). The results show that wood productivity can be sustained under relatively short fallow periods if carefully selected suitable species are adopted.
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This paper examines those variations in soil properties of woody fallows that may be expected as a result of the use of the tree Gliricidia sepium (Jacq.) in fallow management in the forest areas of Nigeria. A comparative analysis of... more
This paper examines those variations in soil properties of woody fallows that may be expected as a result of the use of the tree Gliricidia sepium (Jacq.) in fallow management in the forest areas of Nigeria. A comparative analysis of fallows of the tree and natural fallows was carried out. The results show that differences might be expected between the soil under the two fallow types with respect to pH, boron and available phosphorus. It is suggested that the tree is a suitable species for fallow enhancement in terms of soil restoration but that its use would involve some modification of soil management practices such as the amount and type of fertilizers applied. Key words: Gliricidia sepium, fallow management, soil restoration, woody fallows
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This study examined the roadway characteristics of Road Traffic Crash (RTC) blackspots along Akure-Owo highway between 2012 and 2016 to proffer a spatial model for assessing the spatial dimensions of RTCs for Road Safety Management.... more
This study examined the roadway characteristics of Road Traffic Crash (RTC) blackspots along Akure-Owo highway between 2012 and 2016 to proffer a spatial model for assessing the spatial dimensions of RTCs for Road Safety Management. Global Positioning System (GPS) receiver and Road Survey were employed to acquire field data of the RTCs: site coordinates (x, y), their land uses, roadway characteristics, and furniture. Also obtained were the RTC records of the route from the Federal Road Safety Corps (FRSC) and the Nigeria Police and the Google Earth satellite imagery of the area from the archives of Airbus Defence and Space, France. ArcGIS techniques and multiple linear regression were employed to analyse the dataset. The study showed a statistical significance clustered pattern in the occurrence of RTC along the route (Moran's index=1, z=58.50, p=0.00). The study further indicated that the most potent road factors in the incidence of the RTCs are intersections, road curvature, a...
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To make the MDGs a reality, especially as it affects the built environment, and to conform with the UN Agenda 21 and Habitat Agenda summed up in the concept of urban physical sustainability, there is a need to rapidly improve the quality... more
To make the MDGs a reality, especially as it affects the built environment, and to conform with the UN Agenda 21 and Habitat Agenda summed up in the concept of urban physical sustainability, there is a need to rapidly improve the quality of decisions on land use, conversion and urban renewal in developing countries, especially with regards to physical developments. The potentials of SDSS in determining optimum sites for physical developments within the built environment was the focus of this study. The SDSS developed took into consideration existing and future planning scenarios with the aim of creating a sustainable built environment. To do this, a framework for capturing existing landuse was generated and the SDSS used to generate physical development expansion scenarios of the Obafemi Awolowo University, Nigeria. The system facilitated integrated procedures for determining optimal sites for incremental physical development in such a way as to minimize impact on other aspects of d...
Research Interests:
Research Interests:
Cellular automata (CA) models (deterministic, stochastic or hybrid) have recently garnered tremendous popularity as spatial simulation techniques in a wide range of urban modelling domains and, as such, the vistas of research in this... more
Cellular automata (CA) models (deterministic, stochastic or hybrid) have recently garnered tremendous popularity as spatial simulation techniques in a wide range of urban modelling domains and, as such, the vistas of research in this direction are rapidly expanding. Over the past few years, CA models have found application in spatial simulation involving a plethora of themes, including population dynamics, polycentricity, urban land-use evolution, gentrification, urban sprawl and a host of others. Compared to conventional mathematical tools of spatial simulation such as differential equations, partial differential equations and empirical equations, CA models are relatively simple yet produce results that are stunningly meaningful and useful to support decision making in a planning context. Operating in synergy with other planning models and such other cutting-edge technologies as Geographic Information Systems (GIS) and digital image processing, CA can help to portray the dynamics a...
Declining soil productivity is a major constraint to crop production in the humid tropics. This paper examines the efficiency of multiple cropping as an economic and biological method of sustaining tree crop productivity in western... more
Declining soil productivity is a major constraint to crop production in the humid tropics. This paper examines the efficiency of multiple cropping as an economic and biological method of sustaining tree crop productivity in western Nigeria. Soil characteristics under different crops and crop combinations were examined. In addition, soils under a forest in the same locality were considered as an illustration of soil quality in a condition of little or no human interference. The results show the forest unit to be the best in terms of soil quality, followed by cocoa/kola, plantain, kola, and cocoa units in that order. It is suggested that suitable combinations of tree crops can make for higher soil quality. In particular, the combination of plantain with cocoa may help to raise nutrient status, which is usually low under the latter.
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Forest in Nigeria plays a much wider role in the overall balance of issues affecting the country than those of climate change alone. Nigeria's tropical forest is depleting fast, due largely to uncontrolled human activities. Poverty,... more
Forest in Nigeria plays a much wider role in the overall balance of issues affecting the country than those of climate change alone. Nigeria's tropical forest is depleting fast, due largely to uncontrolled human activities. Poverty, urbanization, population growth and insecurity are the major causes of this trend. Tracking carbon flow in these forest life zones will help account for the effect of these activities on the environment. COPATH, an acronym for Total Carbon Flow from Conversion to Agriculture, Pasture, Harvest and OTHER land-uses including construction of dams, roads, forest fires and human settlement, etc., was used for tracking carbon flow in the forest zones. From the five forest life zones, total carbon stored was estimated to be 2.55 TgC. The four activities of agriculture, harvest, pasture and bush burning were pronounced in contributions to land use changes, particularly to forest depletion. In this paper it is shown that carbon emission was highest from harves...
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The study examined the seasonal variations in Road Traffic Crashes (RTCs) along Akure-Owo highway, Ondo State, Nigeria from 2012 to 2016 and explored the relationship between RTCs and rainfall in the area. Secondary data on RTCs and mean... more
The study examined the seasonal variations in Road Traffic Crashes (RTCs) along Akure-Owo highway, Ondo State, Nigeria from 2012 to 2016 and explored the relationship between RTCs and rainfall in the area. Secondary data on RTCs and mean monthly rainfall were collected for the period covered by the study from the Federal Road Safety Commission (FRSC), the Nigeria Police Force and the Nigerian Meteorological Agency (NIMET), Abuja. The Analysis of Variance (ANOVA), and simple statistical techniques of frequencies and percentages were used for the data analysis. Linear regression models were also used to explain variations in RTCs and to assess the degree to which the variations in RTCs were associated with the monthly rainfall. The study found a significant variation in the yearly occurrence of RTCs in the area. The number of RTCs and road injuries during the study period decreased by 38.33% (n=105 to 70) and 28.97% respectively while death due to RTCs increased by 9.81% (n=51 to 56). The result also showed a significant correlation between rainfall and crash frequencies and further revealed an increase of 18.86% in RTCs during the rainy season. These indicate that weather is an important factor contributing to the recorded RTCs in the study area. The months of April and May which mark the onset of the rainy season in the area had high recorded cases of RTCs over the study period. Thus in the efforts to reduce RTCs, there is the need to continue to sensitize the society on the greater challenge that using the road poses during the rainy season.
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Climate-Smart Agriculture (CSA) as an adaptation strategy that helps rural farmers adapt to climate change by making them resilient to its effects. SALM methodology is a CSA practice that promotes carbon sequestration, which in the long... more
Climate-Smart Agriculture (CSA) as an adaptation strategy that helps
rural farmers adapt to climate change by making them resilient to its effects.
SALM methodology is a CSA practice that promotes carbon sequestration, which
in the long run increase farmers’ productivity.
This study assessed SALM methodology using RothC model to calculate the efficacy
of CSA on Umar Lere farm. Activity Baseline and Monitoring Survey was
used to acquire data for a period of 3 years of practicing SALM methodology.
Results showed that after 3 years of SALM adoption, the farm produced maize
(2.6), soybeans (0.7), guinea corn (1.1), and tomatoes (1.7) tons/hectare/year
respectively in 2015 compared to maize (1.2), soybeans (0.3), guinea corn (1.6),
and tomatoes (0.7) tons/hectare/year respectively produced in 2012. The farm
also recorded 56 trees sequestrating 10.2 tons of carbon dioxide per hectare in
2015 compared to 15 trees sequestrating 2.6 tons of carbon dioxide per year in
2012. In 3 years, Umar Lere farm significantly increased its crop yields from the
project; RothC model shows that the modelled soil carbon stock changes
increased significantly as a result of the adoption of SALM practices from around
0:5 tCO2 ha-1yr-1 in 2012 to 3:5 ha-1 yr-1 in 2015
rural farmers adapt to climate change by making them resilient to its effects.
SALM methodology is a CSA practice that promotes carbon sequestration, which
in the long run increase farmers’ productivity.
This study assessed SALM methodology using RothC model to calculate the efficacy
of CSA on Umar Lere farm. Activity Baseline and Monitoring Survey was
used to acquire data for a period of 3 years of practicing SALM methodology.
Results showed that after 3 years of SALM adoption, the farm produced maize
(2.6), soybeans (0.7), guinea corn (1.1), and tomatoes (1.7) tons/hectare/year
respectively in 2015 compared to maize (1.2), soybeans (0.3), guinea corn (1.6),
and tomatoes (0.7) tons/hectare/year respectively produced in 2012. The farm
also recorded 56 trees sequestrating 10.2 tons of carbon dioxide per hectare in
2015 compared to 15 trees sequestrating 2.6 tons of carbon dioxide per year in
2012. In 3 years, Umar Lere farm significantly increased its crop yields from the
project; RothC model shows that the modelled soil carbon stock changes
increased significantly as a result of the adoption of SALM practices from around
0:5 tCO2 ha-1yr-1 in 2012 to 3:5 ha-1 yr-1 in 2015
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This paper evaluates agroforestry practices in a part of the Guinea savanna belt of south-western Nigeria. The attitude of local farmers to tree planting in crop fields was evaluated. Tree adoption on the farm was assessed by identifying... more
This paper evaluates agroforestry practices in a part of the Guinea savanna belt of south-western Nigeria. The attitude of local farmers to tree planting in crop fields was evaluated. Tree adoption on the farm was assessed by identifying the tree species on the field and their frequencies. The results show that there is little indication that the trees are deliberately utilized to enhance farm operations in the area. It is concluded that greater attention needs to be given to the promotion of agroforestry techniques in the savanna belt. This is especially important as the increasing demand for food would put pressure on the soil resources.
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Abstract The environmental change manifested in terms of drought and desertification in the Lake Chad basin area is characterised by the drastically reduction in the volume of the water in the basin, with serious consequences both at the... more
Abstract The environmental change manifested in terms of drought and desertification in the Lake Chad basin area is characterised by the drastically reduction in the volume of the water in the basin, with serious consequences both at the local and global environment. This ...
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This paper evaluates agroforestry practices in a part of the Guinea savanna belt of south-western Nigeria. The attitude of local farmers to tree planting in crop fields was evaluated. Tree adoption on the farm was assessed by identifying... more
This paper evaluates agroforestry practices in a part of the Guinea savanna belt of south-western Nigeria. The attitude of local farmers to tree planting in crop fields was evaluated. Tree adoption on the farm was assessed by identifying the tree species on the field and their frequencies. The results show that there is little indication that the trees are deliberately utilized to enhance farm operations in the area. It is concluded that greater attention needs to be given to the promotion of agroforestry techniques in the savanna belt. This is especially important as the increasing demand for food would put pressure on the soil resources.
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Environmental degradation is a major contemporary globally issue that is bedeviling most parts of the arid environment. This is due to the several centuries of poor management of the earth’s natural resources, and the increasing pressure... more
Environmental degradation is a major contemporary globally issue that is bedeviling most parts of the arid
environment. This is due to the several centuries of poor management of the earth’s natural resources, and the
increasing pressure associated with rapid population growth. This study assesses the influence of some selected
shelterbelts in arid environment of Yobe State, Nigeria on vegetation characteristics. This is with intention of
identifying its significance in fighting desert encroachment. In the selected shelterbelts, sample plots (quadrats)
measuring 30 m2 in dimension was systematically located at an interval of 200 meters. On the adjoining areas of
the shelterbelt, control quadrats of similar size were located at the same interval and at a distance of 100 meters
from the belt. The vegetation characteristics analyzed in this study include height, diameter, density, frequency
and diversity. SPSS, CANOCA and PAST ecological software were used in analyzing the data collected. The
result shows that there is significant difference (P<0.005) between all the vegetation characteristics in the
shelterbelt sites and the control sites except species diversity. This shows that shelterbelts are necessary tool in
fighting desertification in the area as they enhance the vegetation status thereby protecting the soil against wind
erosion which is one of the major ecological problems of desertification.
environment. This is due to the several centuries of poor management of the earth’s natural resources, and the
increasing pressure associated with rapid population growth. This study assesses the influence of some selected
shelterbelts in arid environment of Yobe State, Nigeria on vegetation characteristics. This is with intention of
identifying its significance in fighting desert encroachment. In the selected shelterbelts, sample plots (quadrats)
measuring 30 m2 in dimension was systematically located at an interval of 200 meters. On the adjoining areas of
the shelterbelt, control quadrats of similar size were located at the same interval and at a distance of 100 meters
from the belt. The vegetation characteristics analyzed in this study include height, diameter, density, frequency
and diversity. SPSS, CANOCA and PAST ecological software were used in analyzing the data collected. The
result shows that there is significant difference (P<0.005) between all the vegetation characteristics in the
shelterbelt sites and the control sites except species diversity. This shows that shelterbelts are necessary tool in
fighting desertification in the area as they enhance the vegetation status thereby protecting the soil against wind
erosion which is one of the major ecological problems of desertification.
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This paper assesses the potential of an intensive afforestation program as a measure of reducing the atmospheric concentration of carbon in Nigeria. The results presented are based on the recently completed Nigerian Country Studies... more
This paper assesses the potential of an intensive afforestation program as a measure of reducing the atmospheric concentration of carbon in Nigeria. The results presented are based on the recently completed Nigerian Country Studies Program on Climate Change Mitigation. A comprehensive mitigation analysis process (COMAP) model was employed to carry out detailed cost/benefit evaluation of the mitigation option. The end-use