Yusuf Yusuf

Ponds locally called (Kududfi in Hausa) are either naturally or artificially created ditches which usually contained water and constitute significant elements of the settlement in Northern Nigeria which can be expanded beyond their natural depth. Many ponds in the urban centers of developing nations have inlets and outlets for transporting water from small ponds to large ones especially ponds that serve as reservoir for the domestic and rain water storage. Earth observation technology allowed researchers to accurately study the past, current and even predict the future of spatial temporal changes of urban environment including the water bodies (ponds). In developing nations like Nigeria many ancients’ cities became over crowded, this is likely because of their history, opportunities or economic advantages. Nevertheless, many of the ancient's cities in Africa experienced regular annual urban flood that make the city centers as water logging throughout the wet season due to commun...

Wetlands are transitional points of habitats that are normally situated between a water body, vegetation cover and dry land. Human activities and climate change influence, the net loss of natural features in global wetlands. However, in the earlier 1990s, people began to understand the benefit of wetlands. The main objective of this study was to evaluate the level of anthropogenic activity in and around Baturiya wetlands and also to provide information on the extent of exploitation on Baturiya wetland. A questionnaire was designed and administered according to the objectives of the study. The result shows that a majority of the anthropogenic activity was conducted by men within the age range of 21-50 years. About 92.5% of the respondents are aware of the effect of the serial disturbances on vegetation resources. The exploitation was mainly for the massive use of energy, income generation, medicinal use and constructional materials. There is a strong need from the management and stak...

ABSTRACT This paper reviews Spatial Data Infrastructure (SDI) approaches and implementation strategies of the developed and developing nations with particular focus on Canada, Switzerland, Nigeria and Malaysia. The objective of the study is to explore strategies being planned like the institutional set-up, policy, infrastructure, system functionality and components of SDI for each country in order to make a justified comparison, and as well to uncover the margin between the two categories. The study shows that the social system of a nation has its implications for the successful and sustained implementation of SDI. SDI success also depends on the political will of the leaders as well as accountability and transparency in policy making. In order to gain support of the wider communities of data providers and users, government must provide a harmonized regulatory environment, develop user-oriented SDI and institutionalize responsible governance. The study also shows that devising a promising quantitative assessment model will bring along the much anticipated breakthrough in evaluating the performance of a nation’s SDI so as to provide direction for improvement. Finally, it is recommended that developing nations should provide a bedrock that would sustain SDI development and proper implementation.