Zobrazeno 1 - 10
of 49
pro vyhledávání: '"James Blignaut"'
Autor:
Mary Maluleke, Nic van Schalkwyk, Anika de Beer, Hendrik Smith, James Blignaut, Jaap Knot, Gerrie Trytsman, Liane Erasmus
Publikováno v:
South African Journal of Science, Vol 120, Iss 7/8 (2024)
There is growing evidence that soil degradation, among other factors, has led to both the decline and constraint of agriculture in southern Africa. Conservation and regenerative agriculture (CA/RA) have been proposed as a grain crop production system
Externí odkaz:
https://doaj.org/article/1f0d0718274b42b69909f9285d59a3a7
Autor:
Roula Inglesi-Lotz, James Blignaut
Publikováno v:
Journal of Energy in Southern Africa, Vol 23, Iss 4, Pp 76-84 (2017)
In South Africa, water is considered a limited source, not only because of the country’s arid nature, but also because of the relatively skew distribution of the resource and the fact that 98% of the resource is already allocated. Eskom, the South
Externí odkaz:
https://doaj.org/article/d5f89ee7052d445d91dea1da0c05bdbf
Autor:
James Blignaut
Publikováno v:
Journal of Energy in Southern Africa, Vol 23, Iss 4, Pp 67-75 (2017)
Eskom has embarked on the construction of two coal-fired power stations (Medupi and Kusile) that use a new dry-cooling process with flue gas desulphurisation (FGD). While the introduction of these new technologies does have meaningful environmental b
Externí odkaz:
https://doaj.org/article/af73de40595a4a2e85134b4dcb3fe38c
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 19, Iss 5, Pp 788-813 (2016)
Invasive alien plants (IAPs) like Rooikrans (Acacia Cyclops) have several undesirable effects on both the natural environment and the social, economic and cultural wellness of society in the De Hoop nature reserve of the Western Cape Province. A few
Externí odkaz:
https://doaj.org/article/8d8dcd4ba05d4a5696b8d75c1f99202b
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 19, Iss 5, Pp 774-787 (2016)
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
Externí odkaz:
https://doaj.org/article/33d84b12ffd74eab87910035a5c40c66
Autor:
Jan Van Heerden, James Blignaut, Heinrich Bohlmann, Anton Cartwright, Nicci Diederichs, Myles Mander
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 19, Iss 5, Pp 714-732 (2016)
The economic and environmental effects of a carbon tax in South Africa: A dynamic cge modelling approach South Africa’s National Treasury released its Carbon Tax Policy Paper in May 2013. The paper proposed a R120/tCO2-equiv. levy on coal, gas and
Externí odkaz:
https://doaj.org/article/e04d2016a3584b7f82254eedf1650af6
Autor:
Douglas Crookes, James Blignaut
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 19, Iss 5, Pp 733-746 (2016)
In this paper, we use a predator–prey model to simulate intersectoral dynamics, with the global steel sector as the prey that supplies inputs and the automotive sector as the predator that demands its inputs. A further prey, an additional upstream
Externí odkaz:
https://doaj.org/article/515282d7e7e448adb3cd8d53a8ce64cf
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 19, Iss 5, Pp 814-830 (2016)
This study estimates the opportunity costs of using woody invasive alien plants (IAPs) for value-added products by estimating the net economic return from the value-added industries in South Africa. By 2008, IAPs were estimated at the national level
Externí odkaz:
https://doaj.org/article/0e4ee8795ea84d1a8984e6a61b7f3d25
Autor:
Roula Inglesi-Lotz, James Blignaut
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 14, Iss 4, Pp 449-465 (2011)
This paper analyses electricity consumption patterns in South Africa in an attempt to understand and identify the roots of the current electricity crisis. This is done by investigating various economic sectors’ responses to price changes using pane
Externí odkaz:
https://doaj.org/article/2b61e25308f94c58b732d6c602de5ddc
Publikováno v:
South African Journal of Economic and Management Sciences, Vol 12, Iss 2, Pp 242-255 (2011)
The economic benefits generated by wetlands and the costs associated with their degradation or loss are frequently overlooked. This often leads to decisions that stimulate wetland conversion and degradation. An important step towards correcting this
Externí odkaz:
https://doaj.org/article/d801e0e194304b328156f8b5a0df497b