ASSESSMENT OF VEGETATION COVER CHANGE OF KEBBE FOREST RESERVE, KEBBE LOCAL GOVERNMENT AREA OF SOKOTO STATE, NIGERIA USING REMOTE SENSING AND GEOGRAPHIC INFORMATION SYSTEM (GIS) TECHNIQUES

2021 ◽  
pp. 20-30
Author(s):  
A.S Ambursa ◽  
A Muhammad ◽  
A.G Bello ◽  
H Alhassan ◽  
A Abdulrahman
Keyword(s):  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Vegetation Cover ◽  
Satellite Image ◽  
Forest Degradation ◽  
Local Government Area ◽  
Forest Reserve ◽  
Deep Forest ◽  
Reserve Forest

This study examined the change in vegetation cover (land use cover) of Kebbe forest reserve, Kebbe local government area of Sokoto state. The research was divided into phases comprising satellite image sourcing; corrections of the images and classification of the land cover types based on the result from the ground truthing of the Kebbe Forest reserve. Two research hypotheses and research objectives were formulated for the study. Satellite images of 5 thematic mapper (TM) of 2003 and 8 operational land imager thermal infrared sensor (OLI-TIRS) of 2018 were selected for this study. The data were haze corrected using pancroma software with the Dark Object Subtraction (DOS) algorithm. The highest increase in area among the LUC between the dates is the shrub land with about 20.42% increase, which is from 138.42 to 881ha and the least being the sparse forest with 1.35% increase, also from 1309.59 to 1359ha of the reserve. On the other hand, the highest decrease was experienced in the deep forest, with 24.89% of the decrease being from 1649.25 to 744ha, and the least being the bare land with 8.73% decrease, which is from 406.71to 89ha of the total reserve area. The results from this study indicate that the reserve of the Kebbe forest is not properly managed, and has also faced high degradation rate that affected the land use and land cover of the reserve. Forest conservation measures should be put in place to salvage the remaining forest land area. Further research into the causes of the forest degradation should be conducted.

scholarly journals Effects of Land Use and Land Cover Change on Tse Gavar Forest Reserve, Vandeikya Local Government Area, Benue State, Nigeria

2020 ◽  
Vol 2 (1) ◽  
pp. 34-46
Author(s):  
Emmanuel Tertsea Ikyaagba ◽  
Joseph Asen Jande ◽  
Mercy Kpadoo Abiem
Keyword(s):  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Land Cover Change ◽  
Local Government Area ◽  
Forest Area ◽  
Community Forest ◽  
Remotely Sensed Data ◽  
Forest Reserve ◽  
Bare Land

Forests are considered to be the very basis for human existence as they touch virtually every aspect of human endeavour. Despite the numerous benefits of forests, the world is experiencing unprecedented degradation of forest and its resources; this is mainly attributed to land use and land cover (LULC) change. Therefore, monitoring of these changes has become a necessity. Hence, the use of remotely sensed data in conjunction with GIS for land use and land cover analysis of Tse Gavar community forest in Vandeikya Local Government Area would definitely enhance the available data for sustainable management and promotion of community forest in the State. This study made use of mostly secondary data from pre-existing satellites imageries. The Landsat TM for 1986, Landsat ETM+ for 2001 and 2012 as well as OLI for 2018 images were sourced from the Earthexplorer platform from United States Geological Surveys (USGS), Global Land Cover Facility (GLCF) and GloVis. Images were subjected to various image processing techniques and supervised classification was carried out on the various images. The classification resulted in classes of farmland, other vegetation, forest area and bare land. The percentage of LULC in Tse Gavar Forest Reserve indicated that farmland increased from 5.78% in 1986 to 18.25% in 2018.  Shrubland also increased from 3.06% in 1986 to 21.08% in 2018. Forested area decreased from 84.17% in 1986 to 59.38% in 2018. The magnitude of land use/land cover change within the 32 years period showed that 9.36 Ha of the forest area was lost to other forms of land use, the bare land area lost within the period was 0.09 Ha to other land uses.  Farmland area increased by 4.32 Ha within the period, shrubland increased by 5078.88 km2.  It was established that just like other protected areas, land use and land cover changes are going on in the Tse Gavar community forest reserve. Enrichment planting of the reserve was recommended.

scholarly journals Geo-spatial Assessment of Land Use/Land Cover (LU/LC) Dynamics in Akoko South West Local Government, Ondo State, Nigeria

2021 ◽  
pp. 46-54
Author(s):  
Dada Ibilewa ◽  
Mustapha Aliyu ◽  
Usman O. Alalu ◽  
Taiwo Hassan Abdulrasheed
Keyword(s):  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Landsat Images ◽  
Rock Outcrops ◽  
Forest Reserve ◽  
Spatial Assessment ◽  
South West ◽  
Moderate Change ◽  
Microsoft Office

Geo-spatial assessment of land use/cover dynamics in Akoko South West Local Government was instigated to bridge the knowledge gap created by data deficiency on the nature, scope and magnitude of land use/cover change in the area. This was done through the analysis of Landsat images of three epochs from 2000 through 2010 to 2020. The processing of the satellite images was done in ArcGIS 10.8 while the analysis and 2030 projection was done in Microsoft office excel using the result from the analysis. QGIS was used to remove the scan lines error on the 2010 image. The result showed increasing built-up area, reducing vegetation and farmlands and diminishing rock outcrops. The changes vary among the different classification characteristics. The increasing change in the second epoch was higher in built up areas while rock outcrops increased in the first epoch. Farmland and vegetation were on reducing trend throughout the study period. However, the moderate change observed in the second epoch for the two land cover classes were not as significant as the first epoch. Government policies on forest reserve should strictly be adhered to in order to preserve the vegetation in the area. People of the area should be advised to diversify their economy in order to avoid total dependence on the forest reserve.

scholarly journals Land Use/Land Cover Changes of Ado-Ekiti LGA, Ekiti State, Nigeria Using Remote Sensing Techniques

2021 ◽  
pp. 32-42
Author(s):  
Ajagbe, Abeeb Babajide ◽  
Oguntade, Sodiq Solagbade ◽  
Abiade, Idunnu Temitope
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Water Body ◽  
Local Government Area ◽  
Land Cover Changes ◽  
Landsat 8 ◽  
Land Use Land Cover ◽  
Bare Surface

Land use assessment and land cover transition need remote sensing (RS) and geographic information systems (GIS). Land use/land cover changes of Ado-Ekiti Local Government Area, Ekiti State, Nigeria, were examined in this research. Landsat 5 TM, Landsat 7 ETM+ and Landsat 8 OLI were acquired for 1985, 2000, and 2015 respectively. Image scene with path 190 and row 055 was used for the three Landsat Images. A supervised digital image classification approach was used in the study, which was carried out using the ArcMap 10.4 Software. Five land use/land cover categories were recognised and recorded as polygons, including Built-up Areas, Bare surface, water body, Dense Vegetation and Sparse Vegetation. The variations in the area covered by the various polygons were measured in hectares. This study revealed that between 1985 and 2015, there was a significant change in Built-up areas from 1694 hectares to 5656 hectares. However, there was a reduction in water body from 25 hectares in 1985 to 19 hectares in 2015; there was a severe reduction in the bare surface from 4641 hectares in 1985 to 2237 hectares in 2015. Generally, the findings show that the number of people building houses in the study area has grown over time, as many people reside in the outskirts of the Local Government Area, resulting in a decrease in the vegetation and bare surfaces. The maps created in this research will be useful to the Ekiti State Ministry of Land, Housing, Physical Planning, and Urban Development to develop strategies and government policies to benefit people living in the Ado-Ekiti Local Government Area of the State.

scholarly journals Classification of land use/land cover of Aniocha north local government area, Delta state using satellite imagery

2021 ◽  
Vol 10 (3) ◽  
pp. 207-216
Author(s):  
Ugbelase Vincent Nwacholundu ◽  
Igbokwe Joel Izuchukwu ◽  
Emengini Josephine Ebele ◽  
Ejikeme Joseph Onyedika ◽  
Igbokwe Esomchukwu Chinagorom
Keyword(s):  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Local Government Area ◽  
Thematic Mapper ◽  
Population Pressure ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Average Accuracy ◽  
Landsat 7

Remote Sensing (RS) and Geographic Information System (GIS) have been established as indispensable tools in the assessment of Land use / Land cover (LULC) change. RS and GIS are important for the monitoring, modelling and mapping of land use and land cover changes across a range of spatial and temporal scales, in order to assess the extent, direction, causes, and effects of the changes. Change detection has provided suitable and wide-ranging information to various decision support systems for natural resource management and sustainable development. The main objective of the study is to assess and evaluate the extent and direction of changes in LULC of Aniocha North Local Government Area (LGA), Delta State, Nigeria to explain the changes and identify some of their effects on both the livelihoods of the local people and the local environment, and also to explore some of the conservation measures designed to overcome problems associated with land use and land cover changes. Landsat 7 Enhanced Thematic Mapper (ETM+) of 2002 with 30 meters resolution and landsat 7 Enhanced Thematic Mapper (ETM) 2014satellite images as well as GIS techniques were used to monitor the changes and to generate maps of the LULC of the area in these periods. Supervised Land Use/Land Cover classification algorithm (Maximum likelihood with null class) was used in the analysis of classification. The classification result of LandSat ETM+ (2002) revealed that farmland accounted for 36.34% of the total LULC class, followed by savannah which accounted for 24.15%. Forest built up area, and waterbody constituted 20.42%, 16.46% and 2.62% respectively. Also, the result of LandSat ETM (2014) shows that forest accounted for 38.59% followed by farmland with 30.93%. Built up area covers 25.55% while savannah and river cover 2.86% and 2.08% respectively. The classification shows 83.26 % average accuracy and 79.16 % overall accuracy for 2002 while the 2014 accuracy assessment showed 95.06% average accuracy and 94.99% overall accuracy. Growing population pressure and its associated problems, such as the increasing demand for land and trees, poor institutional and socio-economic settings, and also unfavorable government policies, such as lack of land tenure security and poor infrastructure development, have been the major driving forces behind the LULC changes.

scholarly journals Flood Susceptibility Mapping of Makera District and Environs in Kaduna South Local Government Area of Kaduna State-Nigeria

2021 ◽  
Vol 5 (2) ◽  
pp. 420-432
Author(s):  
U.S. Ibrahim ◽  
T.T. Youngu ◽  
B. Swafiyudeen ◽  
A.Z. Abubakar ◽  
A.K. Zainabu ◽  
...  
Keyword(s):  
At Risk ◽  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Drainage Density ◽  
Local Government Area ◽  
Susceptibility Map ◽  
Land Use Land Cover ◽  
Strict Adherence ◽  
Thematic Layers

The increased flood incidences experienced all over the world due to climate change dynamics call for a concerted effort towards forestalling future hazards. This study thus, identified the areas that are susceptibility to floods in parts of the Makera district of the Kaduna South Local Government Area in Nigeria using geospatial techniques. Geographic Information System (GIS) was used to produce thematic layers of the factors contributing to flooding (elevation, slope, drainage density, rainfall, land use/land cover); and a multi-criteria evaluation particularly the “Analytical Hierarchical process” (AHP) was applied to determine the locations at risk. The various thematic layers were integrated into the weighted overlay tool in the ArcGIS 10.3 environment to generate the final susceptibility map. The overlay tool was also used to determine the elements at risk of flood in the study area. The results show that the areas that were highly susceptible to flood constituted about 39% of the study area, while moderate and low vulnerable areas constituted about 26% and 35%, respectively. The result of the multi-criteria analysis revealed that land use/land cover (0.601) was the factor that contributed the most to flooding in the study area based on the criteria weights followed by rainfall (0.470), drainage density (0.326), elevation (0.144), and slope (0.099), respectively. The study recommends that authorities concerned should ensure strict adherence to land use planning act, such that floodplains are avoided during development of any type.

scholarly journals Land-use and Land-cover Analysis of Kaduna South Local Government Area, Kaduna State, Nigeria

2019 ◽  
Vol 8 (3) ◽  
pp. 62
Author(s):  
Cyril Kanayochukwu Ezeamaka ◽  
Mwanret Gideon Daful ◽  
Emmanuel Chinenelum Umeano
Keyword(s):  
Land Use ◽  
Local Government ◽  
Land Cover ◽  
Local Government Area

scholarly journals Effectiveness Of Forest Management As Affected By The Land Use Act In Onigambari Forest Reserve, Oluyole Local Government Area Ibadan, Nigeria.

2019 ◽  
Vol 6 (12) ◽  
pp. 16-23
Author(s):  
Z .O. Yusuff ◽  
L. O. Alamu
Keyword(s):  
Land Use ◽  
Forest Management ◽  
Local Government ◽  
T Test ◽  
Local Government Area ◽  
Forest Reserve ◽  
Pearson Product Moment Correlation ◽  
The Mean ◽  
Forest Managers ◽  
Ibadan Nigeria

The growing demands for forest goods and services are putting serious pressure on the resource base, leading to over-exploitation and subsequent forest degradation. In Nigeria both natural and plantation forests could not meet 100 million m3 of the 180 million m3 wood demand in 2000. At present, one of the most challenging problems facing the country is the production of sufficient food and fiber to meet the needs of the ever-increasing population (Peters, 2005). This study examined the effectiveness of forest management in Onigambari forest reserve, Oluyole Local Government Area Ibadan, Nigeria. The study employed a simple random sampling technique to select 43 forest farmers randomly. Descriptive tools such as frequency distribution, percentage, mean, ranking and Pearson product moment correlation (PPMC) was used as inferential statistical tool to determine the forest management performance in the study area while Student T-test was used to test for the significance difference of the relationship between the forest managers and locals. Result showed that mean age of respondents is 39.65 years. A tittle above Forty Eight percent of the respondents were females while 51.16% of the respondents were males, A tittle above Eighteen percent of the respondents were single while 81.40% of the respondents were married. The result of Student t- test revealed that the mean of age is higher than the mean total effects indicating improved performance of age on the total effects in the study area. The p value (0.0000) is smaller than the chosen alpha value (0.05) which has the t-value of 6.840. The result further revealed that deforestation is now becoming history as a result of land use policy on forest management and it has the highest weighted mean score of  2.86 and ranked as the first, followed by the demand of local industries can partially be met second (WMS= 2.74). The result on Pearson product moment correlation revealed that some of the selected factors such as poor participation of people involved in forestry (r= 1.000**; p <= 0.01), use of inexperience foresters (r= 0.262*; p <0.05) and poor conflicts management between local farmers and foresters (r= 0.387*; p < 0.05) respectively exhibited a significant relationship between forest managers and locals/indigenous people. The study recommended that there should be increase in communication among all stakeholders to ensure the harmonization of all interests towards a better use of forest resources, also effective continuous public enlightenment is essential to secure the interest and participation of farmers with an effective mechanism for good governance, equitable benefit sharing, and lastly, conflict resolution mechanism should be established.

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