scholarly journals Pattern of Gully Characteristics under Different Land use Practices in Gboko Town, Benue State, Nigeria

2019 ◽  
Vol 1 ◽  
pp. 150-161
Author(s):  
S A Iorkua ◽  
J A Aper ◽  
I Ayoosu
Keyword(s):  
Land Use ◽  
Slope Angle ◽  
Urban Land Use ◽  
Building Construction ◽  
Systematic Sampling ◽  
Urban Centers ◽  
Land Use Scenario ◽  
Significant Difference ◽  
Landscape Morphology ◽  
The Town

As an outcome of landuse, soil erosion over the years has been a major problem in many parts of Nigeria especially in the urban centers including Gboko town where a lot of buildings generate runoff from roofs that alter the landscape morphology of the this hilly town. This study assesses gully morphometry in Gboko town with the aim to determine gully characteristics, compare the gully characteristics in the built up and un-built areas of Gboko town. Data was collected from the two major land use scenario areas through measurement and observations using stratified, purposive, and systematic sampling techniques. The data was analyzed using both the descriptive and inferential statistics including mean, standard deviation and tests of variability, correlation and student t-test. The results of the study indicate that the gullies in the built up areas of Gboko north, south, west and east were deeper (0.6m, 0.8m, 0.5m and 0.5m) and wider (3.1m, 4.6m, 3.4m and 3.4m) compared to the un-built areas of the town respectively. The result indicated that a significant difference exist in the gully elements between built-up and un-built areas except in the slope angle which is but similar between gullies in Gbokowest area. The study therefore recommends that further monitoring of actual gully erosion should be done under different building environments in the tow to achieve balance between urbanization, building construction, runoff and gully development to achieve sustainable urban land use and drainage control in the study area.

scholarly journals GEOSPATIAL TECHNOLOGY BASED SOIL LOSS ESTIMATION FOR SUSTAINABLE URBAN DEVELOPMENT OF BUTWAL SUBMETROPOLITAN CITY, NEPAL

2020 ◽  
Vol XLIII-B3-2020 ◽  
pp. 137-144
Author(s):  
U. K. Mandal ◽  
K. Kumari
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Urban Development ◽  
Soil Loss ◽  
Urban Land Use ◽  
Sustainable Urban Development ◽  
Lower Percentage ◽  
Significant Difference ◽  
The City ◽  
Soil Unit

Abstract. Geo-spatial technology was attempted to estimate the potential and actual soil loss and its correlative interpretation with physiographic soil units and land use and cover types in Butwal sub-metropolitan city, Central Region of Nepal. Among several empirical and physically based soil erosion models, widely used RKLS and RKLSCP, Revised Universal Soil Loss Equation (RUSLE) were employed to estimate the potential and actual soil loss in the present investigation, respectively. Five years of rainfall, topographic contour-spot height and soil map were basically used as source of information for in-depth investigation. Butwal sub-metropolitan located at foothill of Chure/Siwalik range was found highly sensitive or prone to soil erosion. A total of 32.68 and 1.83 million tons soil was potentially and actually estimated annually being lost from the city. Erosion rates were found highly correlated with the slope of physiographic soil unit. 60.93% of the total potential soil loss was mainly contributed only by physiographic-soil unit 12 with the spatial extent of 34.10% of the city area. This unit was characterized by steeply to very steeply sloping mountainous terrain having dominant slope greater than 30° and loamy skeletal as dominant soil texture. Significant difference was found in the estimation of RKLS and RKLSCP indicating the substantial reduction contribution of soil loss by land use/cover types predominated by forest. after agriculture. Thus physiographic-soil unit 12 having soil loss highest must be given higher priorities for soil conservation and optimum urban land use planning required for sustainable urban development. Lower percentage of actual soil to the potential loss indicated the fact of contribution of cover management and erosional control practice factor in reducing soil erosion in existing situation.

scholarly journals Analysis of Successive Land-Use Changes in Old Residential Area of “Festival of Art & Culture (FESTAC) Town” Lagos, Nigeria

2020 ◽  
Vol 3 (1) ◽  
pp. 45-57
Author(s):  
Yusuf Alapata Ahmed ◽  
O. Bashirat Olantinwo
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Town Planning ◽  
Neighborhood Characteristics ◽  
Urban Centers ◽  
Current Pattern ◽  
Art And Culture ◽  
Conventional Mapping ◽  
Mapping Techniques ◽  
The Town

In recent times, land use for commercial, residential, and transportation purposes among others is dislodging former units and bare sites as a result of structural alteration, mostly in the urban centers of Nigeria. The changes are due to various guises and structural shift, outright demolition and redevelopment and their impact is consequential. This paper assesses the current pattern which residential zones have assumed within the old Festival of Art and Culture (FESTAC) Town in Lagos, Nigeria. The methods used in the study included the delineation of the study area into six avenues which the researcher(s) adopted for the purpose of even coverage, as well as the use of structural questionnaires, base map and GPS in sourcing for necessary data on the field. Additionally, the data collected were assembled, coded and analyzed using simple descriptive statistics and conventional mapping techniques. The findings revealed the factors responsible for the alteration of land use to enhance financial gains, such as changing neighborhood characteristics and the evasion of permission from the town planning authorities. The findings also provided evidence that many structures still remain vulnerable to conversion, alteration, and/or demolition. The paper recommends that adequate permission should be granted by the legal authority before the conversion and rebuilding of any structure into a new land use.

scholarly journals Peri-Urban Land Use Dynamics and Development Implications in the Bamenda III Municipality of Cameroon

2017 ◽  
Vol 2 (3) ◽  
pp. 273 ◽  
Author(s):  
Jude Ndzifon Kimengsi ◽  
Balgah Sounders Nguh ◽  
Achia Soulange Nafoin
Keyword(s):  
Land Use ◽  
Population Growth ◽  
Urban Areas ◽  
Agricultural Land ◽  
Urban Land ◽  
Urban Land Use ◽  
Systematic Sampling ◽  
Land Uses ◽  
Urban Zone ◽  
Land Use Dynamics

<em></em><em><em> </em><em>A consequence of rapid and uncontrolled urbanization is the growth of the peri-urban environment. Peri-urban areas the world over are undergoing rapid changes in their land uses with significant development implications. In the present study, Bamenda III, a municipality of Cameroon, which forms part of the Bamenda Metropolis—a primate city par excellence, witnessed dramatic changes in its peri-urban zone. Such changes are exemplified by the multiplication of land uses, a reduction in<br />agricultural land in favour of settlements and other infrastructural developments as well as wetland invasion. Using a systematic sampling of 100 inhabitants in the Bamenda III peri-urban zone, complemented by interviews and secondary data sources, we sought to investigate the evolution, drivers and development implications of peri-urban land use dynamics. The results showed that during the year 2000-2015, there was a reduction in agricultural land area from 2943ha to 1389ha and a corresponding increase in the area for settlements from 1389ha to 2943ha. A positive correlation was observed between population growth and peri-urban land use dynamics in Bamenda III. The observed<br />dynamics has significant developmental implications in terms of future planning perspectives, future developments at the expense of agricultural land and further encroachments into wetlands. The study<br />concludes that a coordinated and planned growth policy should be introduced in order to control rapid peri-urban land use change in the face of population growth.</em></em>

scholarly journals URBAN PLANNING AND LAND MANAGEMENT CHALLENGES IN EMERGING TOWNS OF ETHIOPIA: THE CASE OF ARBA MINCH

2013 ◽  
pp. 340-348 ◽  
Author(s):  
Engida Esayas Dube
Keyword(s):  
Land Management ◽  
Planning Process ◽  
Information Management System ◽  
Urban Land ◽  
Systematic Sampling ◽  
Urban Centers ◽  
Proactive Management ◽  
Institutional Frameworks ◽  
Household Heads ◽  
The Town

Sustainability of urbanization requires planned development of urban centers, competent institutional frameworks in place and proactive management and governance strategies. In light of this, the paper examines the practice of master planning and the extent of its implementation and challenges of land management in Arba Minch as emerging regional town in the Southern Nations Nationalities and Peoples Region (SNNPR). The data for the study were generated by household survey of 340 household heads selected through systematic sampling, key informant interview with individuals actors in planning, management, informal land transaction in the town. Personal observation and extensive review of various policies, plans, and directives was made in order to assess the issues planning and management of urban land. The paper revealed that the master plans prepared so far for the town have been implemented; however, could not adequately achieve the primarily intended goals such as joining the two settlements i. e. Secha and Sikella in the first master plan, for instance. The study also showed that archaic land information management system, informal land acquisition, corruption, land speculation and land related conflicts have become the challenges of land management in the town. These problems are associated with top-down planning process and, weak institutional frameworks. These all imply that there is an urgent need for giving adequate attention to the planning approaches and management systems of urban land before things get out of control as it is the case with the oldest urban centers of varying size in Ethiopia. Therefore, the concerned bodies who are responsible of planning, implementation and management of land have to be curious whether what is being carried out is intended to bring sustainability or otherwise. This is mainly because the growth of the town is irreversible and the town is continue to expand spatially, socially and in economic spheres which all together will pose unforeseeable challenges.

Physical, Chemical, and Biological Methods and Data from the Urban Land-Use-Gradient Study, Des Plaines and Fox River Basins, Illinois, 1999-2001

2001 ◽  
Author(s):  
Debbie L. Adolphson ◽  
Terri L. Arnold ◽  
Faith A. Fitzpatrick ◽  
Mitchell A. Harris ◽  
Kevin D. Richards ◽  
...  
Keyword(s):  
Land Use ◽  
River Basins ◽  
Urban Land ◽  
Urban Land Use ◽  
Physical Chemical ◽  
Biological Methods ◽  
Fox River

THE IMPACT OF DIFFERENT URBAN LAND USE TYPES ON AIR POLLUTION IN THE MEGACITY OF SÃO PAULO

2020 ◽  
Vol 7 (1) ◽  
pp. 91
Author(s):  
Júlio Barboza Chiquetto ◽  
Maria Elisa Siqueira Silva ◽  
Rita Yuri Ynoue ◽  
Flávia Noronha Dutra Ribieiro ◽  
Débora Souza Alvim ◽  
...  
Keyword(s):  
Land Use ◽  
Air Pollution ◽  
Urban Land ◽  
Sao Paulo ◽  
Urban Land Use ◽  
São Paulo ◽  
Land Use Types ◽  
The Impact

A poluição do ar é influenciada por fatores naturais e antropogênicos. Quatro pontos de monitoramento (veicular, comercial, residencial e background urbano (BGU))da poluição do ar em São Paulo foram avaliados durante 16 anos, revelando diferenças significativas devidoao uso do solo em todas as escalas temporais. Na escala diurna, as concentrações de poluentes primários são duas vezes mais altas nos pontos veicular e residencial do que no ponto BGU, onde a concentração de ozonio (O3) é 50% mais alta. Na escala sazonal, as concentrações de monóxido de carbono(CO) variaram em 80% devido ao uso do solo, e 55% pela sazonalidade.As variações sazonais ede uso do solo exercem impactos similares nas concentrações de O3 e monóxido de nitrogênio (NO). Para o material particulado grosso (MP10) e o dióxido de nitrogênio(NO2), as variações sazonais são mais intensas do que as por uso do solo. Na série temporal de 16 anos, o ponto BGU apresentou correlações mais fortes e significativas entre a média mensal de ondas longas (ROL) e o O3 (0,48) e o MP10 (0,37), comparadas ao ponto veicular (0,33 e 0,22, respectivamente). Estes resultados confirmam que o uso do solo urbano tem um papel significativo na concentração de poluentes em todas as escalas de análise, embora a sua influência se torne menos pronunciada em escalas maiores, conforme a qualidade do ar transita de um sistema antropogênico para um sistema natural. Isto poderá auxiliar decisões sobre políticas públicas em megacidades envolvendo a modificação do uso do solo.

IMPACTS OF URBAN LAND USE ON CRIME PATTERNS THROUGH GIS APPLICATION

2013 ◽  
Vol 11 (2) ◽  
Author(s):  
Ahmad Nazri Muhamad Ludin ◽  
Norsiah Abd. Aziz ◽  
Nooraini Hj Yusoff ◽  
Wan Juliyana Wan Abd Razak
Keyword(s):  
Land Use ◽  
Drug Abuse ◽  
Land Use Planning ◽  
Urban Areas ◽  
Spatial Relationship ◽  
Police Department ◽  
Strong Relationship ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Patterns

Land use planning plays a crucial role in creating a balance between the needs of society, physical development and the ecosystem. However, most often poor planning and displacement of land uses particularly in urban areas contribute to social ills such as drug abuse and criminal activities. This research explains the spatial relationship of drug abuse and other criminal activities on urban land use planning and their implications on the society at large. Spatial statistics was used to show patterns, trends and spatial relationships of crimes and land use planning. Data on crime incidents were obtained from the Royal Malaysia Police Department whilst cases of drug abuse were collected from the National Anti-Drug Agency (AADK). Analysis of the data together with digital land use maps produced by Arnpang Jaya Municipal Council, showed the distribution of crime incidents and drug abuse in the area. Findings of the study also indicated that, there was a strong relationship between petty crimes, drng abuse and land use patterns. These criminal activities tend to concentrate in residential and commercial areas of the study area.

scholarly journals Correction to: The impacts of agricultural and urban land-use changes on plant and bird biodiversity in Costa Rica (1986–2014)

2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Andrea Montero ◽  
Joan Marull ◽  
Enric Tello ◽  
Claudio Cattaneo ◽  
Francesc Coll ◽  
...  
Keyword(s):  
Land Use ◽  
Costa Rica ◽  
Land Use Changes ◽  
Urban Land ◽  
Urban Land Use
Sign in / Sign up

Export Citation Format

Share Document