dc.contributor.author |
Dzikiti, Sebinasi
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dc.contributor.author |
Ntuli, NR
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|
dc.contributor.author |
Nkosi, NN
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dc.contributor.author |
Ntshidi, Zanele
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dc.contributor.author |
Ncapai, L
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dc.contributor.author |
Gush, MB
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dc.contributor.author |
Mostert, THC
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dc.contributor.author |
Du Preez, R
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dc.contributor.author |
Mobea, NT
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|
dc.contributor.author |
Mpandeli, S
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dc.contributor.author |
Pienaar, Harrison H
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dc.date.accessioned |
2022-02-11T09:49:51Z |
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dc.date.available |
2022-02-11T09:49:51Z |
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dc.date.issued |
2022-07 |
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dc.identifier.citation |
Dzikiti, S., Ntuli, N., Nkosi, N., Ntshidi, Z., Ncapai, L., Gush, M., Mostert, T. & Du Preez, R. et al. 2022. Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal. <i>South African Journal of Botany, 147.</i> http://hdl.handle.net/10204/12274 |
en_ZA |
dc.identifier.issn |
0254-6299 |
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dc.identifier.issn |
1727-9321 |
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dc.identifier.uri |
https://doi.org/10.1016/j.sajb.2022.01.003
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|
dc.identifier.uri |
http://hdl.handle.net/10204/12274
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|
dc.description.abstract |
Natural forests are an important source of livelihood for various communities. Yet economically important fruit tree species endemic to sub Saharan Africa e.g. Sclerocaryea birrea (Marula) are critically endangered due to over-exploitation and climate change. Effective conservation, management and utilization of native fruit trees require accurate quantitative information on how the trees interact with their environment. In this study we investigated the water use patterns and fruit yield dynamics of S. birrea, and another widely used species Strychnos spinosa (Monkey orange) growing on nutrient poor sandy soils in northern KwaZulu-Natal Province, South Africa. The study aimed to understand how the water use and yield of these species are influenced by climate and soils. These data are essential to support biodiversity conservation and management, and agroforestry programs. Transpiration was measured on co-occurring trees of each species over two years using the heat ratio sap flow method. The sap flow and environmental data were used to develop and test a simple Penman-Monteith transpiration model. The model provided insights on how environmental factors affected water use and yield in the trees’ natural habitats. The two species had similar diurnal transpiration trends characterized by midday stomatal closure. Peak transpiration per unit leaf area was higher for S. spinosa (2.3 L/m2/d) than S. birrea (1.4 L/m2/d). S. birrea transpiration responded strongly to rainfall pulses with the soil water deficit explaining 65% of the variation in tree water use. S. spinosa transpiration, on the other hand, was largely driven by the atmospheric evaporative demand rather than by soil water availability (R2 < 0.10), suggesting that the two species had different mechanisms to cope with drought stress. Despite the contrasting water relations, transpiration could be determined accurately using the combination model. The model has potential applications in agroforestry and species-specific conservation programs by providing accurate information on their water requirements. |
en_US |
dc.format |
Abstract |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.uri |
https://www.sciencedirect.com/science/article/pii/S0254629922000035 |
en_US |
dc.source |
South African Journal of Botany, 147 |
en_US |
dc.subject |
Sap flow |
en_US |
dc.subject |
Strychnos spinosa |
en_US |
dc.subject |
Transpiration |
en_US |
dc.subject |
Water use model |
en_US |
dc.subject |
Water productivity |
en_US |
dc.subject |
Sclerocarya birrea (Marula) |
en_US |
dc.subject |
Natural forests |
en_US |
dc.subject |
Botany conservation |
en_US |
dc.subject |
Agroforestry |
en_US |
dc.subject |
Biodiversity conservation |
en_US |
dc.title |
Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal |
en_US |
dc.type |
Article |
en_US |
dc.description.pages |
11 |
en_US |
dc.description.note |
© 2022 SAAB. Published by Elsevier B.V. All rights reserved. Due to copyright restrictions, the attached PDF file contains the abstract of the published paper. For access to the published item, please consult the publisher's website: https://www.sciencedirect.com/science/article/pii/S0254629922000035 |
en_US |
dc.description.cluster |
Smart Places |
en_US |
dc.description.impactarea |
Hydrosciences |
en_US |
dc.identifier.apacitation |
Dzikiti, S., Ntuli, N., Nkosi, N., Ntshidi, Z., Ncapai, L., Gush, M., ... Pienaar, H. H. (2022). Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal. <i>South African Journal of Botany, 147</i>, http://hdl.handle.net/10204/12274 |
en_ZA |
dc.identifier.chicagocitation |
Dzikiti, S, NR Ntuli, NN Nkosi, Zanele Ntshidi, L Ncapai, MB Gush, THC Mostert, et al "Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal." <i>South African Journal of Botany, 147</i> (2022) http://hdl.handle.net/10204/12274 |
en_ZA |
dc.identifier.vancouvercitation |
Dzikiti S, Ntuli N, Nkosi N, Ntshidi Z, Ncapai L, Gush M, et al. Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal. South African Journal of Botany, 147. 2022; http://hdl.handle.net/10204/12274. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Dzikiti, S
AU - Ntuli, NR
AU - Nkosi, NN
AU - Ntshidi, Zanele
AU - Ncapai, L
AU - Gush, MB
AU - Mostert, THC
AU - Du Preez, R
AU - Mobea, NT
AU - Mpandeli, S
AU - Pienaar, Harrison H
AB - Natural forests are an important source of livelihood for various communities. Yet economically important fruit tree species endemic to sub Saharan Africa e.g. Sclerocaryea birrea (Marula) are critically endangered due to over-exploitation and climate change. Effective conservation, management and utilization of native fruit trees require accurate quantitative information on how the trees interact with their environment. In this study we investigated the water use patterns and fruit yield dynamics of S. birrea, and another widely used species Strychnos spinosa (Monkey orange) growing on nutrient poor sandy soils in northern KwaZulu-Natal Province, South Africa. The study aimed to understand how the water use and yield of these species are influenced by climate and soils. These data are essential to support biodiversity conservation and management, and agroforestry programs. Transpiration was measured on co-occurring trees of each species over two years using the heat ratio sap flow method. The sap flow and environmental data were used to develop and test a simple Penman-Monteith transpiration model. The model provided insights on how environmental factors affected water use and yield in the trees’ natural habitats. The two species had similar diurnal transpiration trends characterized by midday stomatal closure. Peak transpiration per unit leaf area was higher for S. spinosa (2.3 L/m2/d) than S. birrea (1.4 L/m2/d). S. birrea transpiration responded strongly to rainfall pulses with the soil water deficit explaining 65% of the variation in tree water use. S. spinosa transpiration, on the other hand, was largely driven by the atmospheric evaporative demand rather than by soil water availability (R2 < 0.10), suggesting that the two species had different mechanisms to cope with drought stress. Despite the contrasting water relations, transpiration could be determined accurately using the combination model. The model has potential applications in agroforestry and species-specific conservation programs by providing accurate information on their water requirements.
DA - 2022-07
DB - ResearchSpace
DP - CSIR
J1 - South African Journal of Botany, 147
KW - Sap flow
KW - Strychnos spinosa
KW - Transpiration
KW - Water use model
KW - Water productivity
KW - Sclerocarya birrea (Marula)
KW - Natural forests
KW - Botany conservation
KW - Agroforestry
KW - Biodiversity conservation
LK - https://researchspace.csir.co.za
PY - 2022
SM - 0254-6299
SM - 1727-9321
T1 - Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal
TI - Contrasting water use patterns of two drought adapted native fruit tree species growing on nutrient poor sandy soils in northern KwaZulu-Natal
UR - http://hdl.handle.net/10204/12274
ER - |
en_ZA |
dc.identifier.worklist |
25359 |
en_US |