Search results
Showing items 1 through 9 of 19.
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Library Resource
Peer-reviewed publication
South Africa, Southern Africa
Invasive alien plants have a negative impact on ecosystem goods and services derived from ecosystems. Consequently, the aggressive spread of invasive alien plants (IAPs) in the river catchments of South Africa is a major threat to, inter alia, water security. The Olifants River catchment is one such a catchment that is under pressure because of the high demand for water from mainly industrial sources and unsustainable land-use, which includes IAPs. This study considered the cost-effectiveness of clearing IAPs and compared these with the cost of a recently constructed dam.
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Library Resource
Peer-reviewed publication
Ukraine, Australia, New Zealand, Asia, Africa, Northern America
It studies the preconditions of creation, functioning of farms in Ukraine and foreign countries. In the course of the study revealed that over the years 1990-2015, the number of farms increased from 332 to 54 302 is 915, 40 thousand hectares of land. For a specified period on one farm had between 12.0 to 78.8 ha of agricultural land (the most notable growth occurred in the period from 1990-1995, he was almost 100 times).
Despite this, farming did not become efficient producers of agricultural products.
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Library Resource
Peer-reviewed publication
Land reform has traditionally had two objectives: equity and productivity. Food insecurity and the need for agriculture to contribute to development emphasise the need to maintain and improve productivity while improving equitability. Land must foster production and agriculture must attract good human material.
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Library Resource
Peer-reviewed publication
Inadequacies in the indication of cultural ecosystem services (CES) are a hindrance in assessing their
comprehensive impacts on human wellbeing. Similarly, uncertainties about the quantity and quality of
CES, in real time and space, have hampered the ability of resource managers to precisely take responsive
management actions. The aim of the study is to demonstrate, how CES indicators can be identified and
qualified in order to link CES to human wellbeing, and to integrate them into the ‘ecosystem services cascade’
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Library Resource
Peer-reviewed publication
Sacred sites are of conservation value because of their spiritual meaning, as cultural heritage and as remnants of
near-natural biotopes in landscapes strongly transformed by man. The vegetation of sacred sites in Morocco was
studied recently. Information about their number, spatial pattern or relief position is fragmentary. However, these
parameters are important to evaluate their role as refuge for organisms and their representativeness of potential
natural vegetation.
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Library Resource
Peer-reviewed publication
South Africa, Southern Africa, Africa
The Rhodes trout fishery, located in the North Eastern Cape, is one of South Africa’s premier fly-fishing destinations. The integrity of the fishery is, however, under threat due to various land-use practices, which could weaken its appeal as a tourist attraction. The aim of this study is to estimate the amount recreational users are willing to pay for a project to improve the trout habitat of waters managed by the Wild Trout Association (WTA) in this fishery in order to improve its fish population density by 100 per cent.
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Library Resource
Peer-reviewed publication
South Africa, Southern Africa
Ecosystem-based adaptation (EbA) is increasingly being promoted as a cost-effective means of adaptation to climate change. However, in spite of considerable international press, there is still little evidence to substantiate this claim. This study proposes a method through which the cost-effectiveness of EbA strategies can be evaluated against alternative adaptation options, and contributes to South African literature on the subject.
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Library Resource
Peer-reviewed publication
South Africa, Southern Africa, Africa
Here we describe an economic development programme termed ARISE – an acronym for African Rural Initiatives for Sustainable Environments.
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Library Resource
Peer-reviewed publication
Ukraine, Africa, Central America, Asia, South America
At the present stage of human development, food is one of the most acute problems. Over the past 30-40 years, the growth rate of population in many countries of the world is ahead of the growth rate of agricultural production, which leads to acute shortage of food. This is especially true of developing countries, which accounts for the overwhelming majority of the population of the planet that is under-eating and starving. According to FAO (Food and Agriculture Organization), in the world now about half a billion people are constantly hungry and twice asleep.
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Library Resource
Peer-reviewed publication
The greater the benefit derived from using a piece of land for any particular purpose the higher the price the prospective user is willing to pay. The demand for land is thus a reflection of the utility derived from its use by current or potential users. The ability to compete for sites depends on whether they have the means to benefit from accessibility and complementarity within the urban framework. Conventional theory states that productivity determines urban rent, which is the highest at the place of maximum accessibility, i.e. the central business district (CBD).
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