Author:Rutherford, MCDate:Jan 1979Aboveground peak season biomass is given for 11 woody species in each of five belt transects under study. Mean aerial biomass for all species was 16 273 kg ha, made up of 14 937 kg ha wood, 236 kg ha current season's twigs and 1 100 kg ha ...Read more
Author:Skinner, DGDate:Feb 1994The available data bases for accidents, road geometry (photolog output) and traffic counts were combined and the accident rates determined for two lane, four lane and six lane road categories as well as for 22 geometric element categories. ...Read more
Author:Hitge, JJ; Franz, RM; Schutte, PC; Kielblock, AJDate:Oct 1991This report is designed to convey information to mine management, environmental engineers, training personnel and acclimatization supervisors that will allow an appraisal of their mine's position with regard to heat acclimatization of workers ...Read more
Author:Auret, EWDate:1986Activities of the National Programmes for Ecosystem and Aquaculture Research of the CSIR Foundation for Research Development are reviewed, within the programmes on Inland Water Ecosystems, Terrestrial Ecosystems, Nature Conservation Research, ...Read more
Author:Vhahangwele, MDate:Jan 2013South African coal-fired power stations rely on the use of low grade bituminous coal for electricity generation. During coal combustion processes, this type of coal generates large volume of waste materials which include Fly ash, bottom ash, ...Read more
Author:Anochie-Boateng, JosephDate:Dec 2007This research study was intended to develop laboratory test procedures for advance testing and characterization of fine-grained cohesive soils and oil sand materials. The test procedures are based on typical field loading conditions and the ...Read more
Author:Twinch, AJ; Breen, CMDate:Feb 1980The definitions of the different phosphorus compound fractions present in inland waters are reviewed and the limitations of the definitions discussed. The development of models of phosphorus cycling is summarized. Attempts to establish their ...Read more
Author:Rouault, Marjolaine JDate:Nov 2011Satellite remote sensing datasets including more than 6 years of high frequency Sea Surface Temperature (SST) imagery as well as surface current observations derived from 18 years of merged-altimetry and over 2 years of Advanced Synthetic ...Read more
Author:Moran, VC; Moran, PMDate:Dec 1982A compilation of references to research on alien invasive plants in South Africa is given. Crop weeds and indigenous plants are not included. Reference is made to 457 publications. Keyword listings and a keyword index are provided.Read more
Author:Endrody-Younga, SDate:Sep 1982A study of the composition, biology and impact of the arthropod fauna associated with dung and other decaying matter was carried out on the Nylsvley Nature Reserve and on a neighbouring farm from June 1975 to July 1976. A total of 100 638 ...Read more
Author:Jacobsen, NHGDate:Dec 1977A survey of the distribution, status and general ecology of amphibians, reptiles and mammals was undertaken on the Nylsvley Nature Reserve, Transvaal from mid-1974 to mid-1977 as part of the South African Savanna Ecosystem Project. A total ...Read more
Author:Jooste, FJ; Lourens, JPDate:Sep 1998The broad objective is to make recommendations for appropriate modelling procedures to be used in the structural design of asphalt layers. Findings of this investigation are intended to be used in refining and validating existing asphalt ...Read more
Author:Paige-Green, P; Coetzer, K; Lea, J; Semmelink, CDate:17 Jun 2009The use of locally materials in low volume rural roads can result in significant cost savings. However, this is associated with an increased risk of premature distress or failure. A compromise needs to be found between the probability of ...Read more
Author:Safriel, O; Bruton, MNDate:Jun 1984During the past few years the National Programme for Environmental Sciences has been involved in assessing the potential of aquaculture in South Africa and in formulating a research policy which will provide the information needed to place ...Read more
Author:Archer, Emma RMDate:Jan 2013On the 2nd of November, 2011, South Africa’s Minister of Water and Environmental Affairs tabled the draft South African Weather Service Amendment Bill to the National Assembly. After the period for written comment closed, in January 2012, ...Read more
Author:Heydorn, AEFDate:Aug 1986During a meeting of the South African National Committee for Oceanographic Research (SANCOR) Estuaries Programme Committee held on 12 and 13 October 1983 at San Lameer, Natal, consideration was given to a working paper on the freshwater ...Read more
Author:De Moor, IJ; Bruton, MNDate:1988This report serves as an introduction to the problem of alien and translocated aquatic animals in southern Africa is given followed by checklists of the different species which have been introduced into or translocated within the subcontinent. ...Read more
Author:Callaghan, BGDate:1991Atmospheric corrosion is one the most widespread causes of metal and alloy degradation known. We only have to look at the corrosion of structural steelwork in buildings, bridges and other forms of construction to recognize the enormous wastage ...Read more
Author:Tyson, PD; Kruger, FJ; Louw, CWDate:Apr 1988This report is a review of available information on the dispersion climatology, the degree of atmospheric pollution and the various impacts of that pollution on man and environment in the Eastern Transvaal Highveld (ETH) and adjacent regions. ...Read more