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Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa
Includes bibliographical references (p. 118-139).
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2014
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| _version_ | 1867613176968773632 |
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| access_status_str | Open Access |
| author | Coetsee, Corli |
| author2 | February, Edmund C |
| author_browse | Coetsee, Corli February, Edmund C |
| author_facet | February, Edmund C Coetsee, Corli |
| author_sort | Coetsee, Corli |
| collection | Thesis |
| description | Includes bibliographical references (p. 118-139). |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6242 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:58.458Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/6242 Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa Coetsee, Corli February, Edmund C Bond, William J Botany Includes bibliographical references (p. 118-139). Fire with herbivory, climate, and soil properties including nutrients are said to be important in regulating the structure and function of savanna ecosystems. Frequent fire is often held responsible for a decrease in nitrogen pools and availability and the maintenance of low fertility conditions. However, previous research in the Kruger National Park (KNP) and elsewhere found conflicting results for the effects of fire on nitrogen pools and transformation rates. The main aim of this study was to gain a better understanding ofthe long-term effects of fire on nitrogen cycling in the KNP. The KNP provided an ideal opportunity for this study because of the initiation of a fire experiment in 1954. The Experimental Bum Plot (EBP) experiment was initiated in four representative landscapes of the KNP to determine the effects of fire on vegetation structure. I tested the effect of burning on nitrogen cycling and productivity in four fire treatments situated in Pretoriuskop Sour Bushveld (broad-leaf savanna). The fire treatments included a late winter, annual bum (August), late winter and summer triennial bums (August and February) and a fire exclusion treatment. Total soil nitrogen, available nitrogen, woody biomass and herbaceous production were measured. 1 hypothesized that vegetation adapted to low N conditions with low N foliage would be expected to dominate in frequently burnt areas if fire was to decrease N pools and fluxes. 2014-08-13T14:17:14Z 2014-08-13T14:17:14Z 2007 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/6242 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Coetsee, Corli Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| thesis_degree_str | Doctoral |
| title | Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| title_full | Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| title_fullStr | Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| title_full_unstemmed | Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| title_short | Long-term effects of fire on nitrogen cycling in a broad-leaf savanna, Kruger National Park, South Africa |
| title_sort | long term effects of fire on nitrogen cycling in a broad leaf savanna kruger national park south africa |
| topic | Botany |
| url | http://hdl.handle.net/11427/6242 |
| work_keys_str_mv | AT coetseecorli longtermeffectsoffireonnitrogencyclinginabroadleafsavannakrugernationalparksouthafrica |