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Autor:
H.A. Snyman
Publikováno v:
South African Journal of Plant and Soil. 29:157-163
Seriphium plumosum encroachment in South Africa has converted extensive areas of grassland into less productive shrubland–grassland, but its control is not being seriously addressed at present. Therefore, the short-term response of S. plumosum to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f70b4765e303da18f5dbb269407708a
https://doi.org/10.1080/02571862.2012.745905
https://doi.org/10.1080/02571862.2012.745905
Autor:
I.B. Oosthuizen, H.A. Snyman
Publikováno v:
South African Journal of Plant and Soil. 26:1-8
The impact of water stress on root growth for the indigenous apomectic C4-grass species Themeda triandra was determined over a growing season covering three growth stages (vegetative, pipe and reproductive), as well as for regrowth occurring to one,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aac7fe43241f9794d7a05a5f6462d006
https://doi.org/10.1080/02571862.2009.10639925
https://doi.org/10.1080/02571862.2009.10639925
Publikováno v:
Journal of Environmental Management. 75:21-35
Pastoralism is the most dominant land use form in the arid rangelands of Sub-Saharan Africa, but this rangeland-based lifestyle is under threat. As a consequence a study was conducted in the Middle Awash Valley of Ethiopia with the main objectives of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::647678e28983d6d91667f864756d53c3
https://doi.org/10.1016/j.jenvman.2004.11.003
https://doi.org/10.1016/j.jenvman.2004.11.003
Autor:
H.A. Snyman
Publikováno v:
Journal of Arid Environments. 60:457-481
The seasonal trend in root mass, root distribution with depth and root/shoot ratios along a degradation gradient were quantified over a 2 year period (2000/01 and 2001/02 growing seasons) for a semi-arid rangeland. Water-use efficiency (WUE) for each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ad78a3ccd72a6c364df83274ecf124f
https://doi.org/10.1016/j.jaridenv.2004.06.006
https://doi.org/10.1016/j.jaridenv.2004.06.006
Publikováno v:
Journal of Arid Environments. 60:343-358
The objectives of the study, conducted during the 2000/01 growing season in the Middle Awash Valley of Ethiopia, were to quantify the effects of two dominant woody species ( Acacia tortilis and Balanites aegyptica ) on grass species composition, gras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a54b0453e1f511e9c355386524842248
https://doi.org/10.1016/j.jaridenv.2004.04.006
https://doi.org/10.1016/j.jaridenv.2004.04.006
Autor:
H.A. Snyman
Publikováno v:
Journal of Arid Environments. 59:685-697
The short-term (2 years) influence of fire burning with the wind (head fire) and against the wind (back fire) on the productivity (above-ground phytomass and litter) and fire behaviour were determined over seven growing seasons (1995/96–2001/02) in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c199cedb14a3960e868ce0ee1c765cf
https://doi.org/10.1016/j.jaridenv.2004.02.002
https://doi.org/10.1016/j.jaridenv.2004.02.002
Autor:
H.A. Snyman
Publikováno v:
Journal of Arid Environments. 56:465-485
During the dormant winter period the semi-arid rangeland areas of South Africa are characterized by unplanned fires, either by lightning or negligence by man. The quantification of the impact of burning in terms of the above- and below-ground phytoma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0defe21a98f3c3eba68311d749d86b99
https://doi.org/10.1016/s0140-1963(03)00069-7
https://doi.org/10.1016/s0140-1963(03)00069-7
Autor:
H.A. Snyman
Publikováno v:
Journal of Arid Environments. 55:417-432
Semi-arid rangelands, which have retrogressed beyond a certain threshold and could not rest-recover, can only be restored by mechanical inputs helping the re-establishment of vegetation. Therefore, different over-sown species and mechanical restorati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53273d0b1b6f58dad4033c884a28e077
https://doi.org/10.1016/s0140-1963(02)00286-0
https://doi.org/10.1016/s0140-1963(02)00286-0
Autor:
H.A. Snyman
Publikováno v:
Journal of Arid Environments. 55:160-180
Unplanned fires are a natural phenomenon in southern African rangelands. The influence of fire on soil characteristics (soil-water content, soil compaction, soil temperature, infiltration ability, soil properties especially organic matter, pH, exchan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::199314f6aa59aabe5b6f54d76f9a2f94
https://doi.org/10.1016/s0140-1963(02)00252-5
https://doi.org/10.1016/s0140-1963(02)00252-5