Huambo has central capacities able to compete and complement other major towns in Africa such as Johannesburg and Nairobi. Nevertheless, Huambo, the second city of Angola, was at war from 1975 till 2002 and continued to be relatively isolated from 2002 till 2006, because it took some time to...

The objective of this paper is to define what problems the city of Angra do Heroísmo (Terceira Island, Azores) faces in what regards urban sustainability, so as to improve the quality of life of the residents and to ensure the adequate growth and progress of the city in all areas, as possible....

Accross river basins water can have different types of values according not only to its production costs but also due to changes in the willingness to pay across the territory. The generalized view that integrated water management must be made through a centralised mechanism does not consider...

Science is driven by research funds, research funds are associated with decision making, and decision making is attached to valuation. Therefore every scientific paradigm tend to devise its own valuation system. Ecconomists prefer cost benefit analysis where everything can be translated into...

Islands are attractive places for tourists and most islands can be, sooner or later, requested by an increasing touristic demand. But islands are also places where natural capital has very defined limits. The aim of this paper is to assess the carrying capacity of islands in terms of water in...

Islands are one of the most important destinations for tourism and leisure. However, islands exhibit different levels of attractiveness in the course of time and comparing with other islands. The objective of this paper is to analyze this subject for the Archipelago of the Azores, using gravity...

The agenda explain the historical evolution of land uses in São Jorge Island (Azores- Portugal) between 15th-20th century.The economic exploitation of the island space prosecuted itself in simultaneous with his colony, one form to guarantee the auto supplying of the populations. First we assess...

The optimization of the location of public services in the villages and neighborhoods in the city of Huambo in Angola results in a hierarchical system of central places that can be calibrated to give different hierarchies according to the accessibility level. This result is achieved for 300...

Huambo province in Angola has been detached from the outside world since the begining of the nineties. First due to the civil war in Angola and from then on due to the degradation of the roads and destruction of the railways. Furthermore there is the lack of integration of the province itself...

São Tomé e Príncipe is a small insular country located in the Gulf of Guinea, populated by 160000 persons, living in 1000 square kilometers of a rainforest environment. The GDP pc is 1200 US$ per year, 50% of the economy is based in auto-consumption and the main...