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Musongora M, Karanja N, Kimenju W, Kamau S. Spatio-temporal change of selected soil physico-chemical properties in grevillea-banana agroforestry systems. Heliyon 2023; 9:e16121. [PMID: 37234607 PMCID: PMC10208817 DOI: 10.1016/j.heliyon.2023.e16121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/06/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
In Africa, banana is mainly produced by smallscale farmers under complex production systems for both home consumption and income generation. Low soil fertility continually constraints its production and farmers are embarking on emerging technologies such as improved fallow, cover crops, integrated soil fertility management, agroforestry with fast growing tree species to address this challenge. This study aims at assessing the sustainability of grevillea-banana agroforestry systems by investigating the variability in their soil physico-chemical properties. Soil samples were collected in banana sole stands, Grevillea robusta sole stands and grevillea-banana intercrops in three agro-ecological zones during the dry and rainy seasons. Soil physico-chemical properties significantly differed among agroecological zones, cropping systems and between seasons. Soil moisture, total organic carbon (TOC), P, N, Mg decreased from the highland to the lowland zone, through the midland zone whereas soil pH, K and Ca showed the opposite trend. Soil bulk density, moisture, TOC, NH4+-N, K and Mg were significantly higher in the dry season compared to the rainy season but total N was higher in the rainy season. Intercropping banana with grevillea trees significantly decreased soil bulk density, TOC, K, Mg, Ca and P. Soils under banana sole stands accumulated higher potassium, magnesium, calcium, phosphorus with a higher soil bulk density and pH compared to grevillea-banana intercrops and grevillea sole stands. This suggests that intercropping banana and grevillea trees increases the competition for these nutrients and requires careful attention for the optimization of their interactive benefits.
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Affiliation(s)
- Muyisa Musongora
- Department of Land Resource Management and Agricultural Technology, University of Nairobi, P. O. Box 29053–00625, Nairobi, Kenya
- Faculty of Agriculture, Université Catholique du Graben, P. O. Box 29 Butembo, Congo
| | - Nancy Karanja
- Department of Land Resource Management and Agricultural Technology, University of Nairobi, P. O. Box 29053–00625, Nairobi, Kenya
| | - Wangai Kimenju
- Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053–00625, Nairobi, Kenya
| | - Solomon Kamau
- Department of Land Resource Management and Agricultural Technology, University of Nairobi, P. O. Box 29053–00625, Nairobi, Kenya
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Reprint of: Functional-structural plant models to boost understanding of complementarity in light capture and use in mixed-species forests. Basic Appl Ecol 2021. [DOI: 10.1016/j.baae.2021.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Williams LJ, Butler EE, Cavender-Bares J, Stefanski A, Rice KE, Messier C, Paquette A, Reich PB. Enhanced light interception and light use efficiency explain overyielding in young tree communities. Ecol Lett 2021; 24:996-1006. [PMID: 33657676 DOI: 10.1111/ele.13717] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/05/2020] [Accepted: 02/10/2021] [Indexed: 01/13/2023]
Abstract
Diverse plant communities are often more productive than mono-specific ones. Several possible mechanisms underlie this phenomenon but their relative importance remains unknown. Here we investigated whether light interception alone or in combination with light use efficiency (LUE) of dominant and subordinate species explained greater productivity of mixtures relative to monocultures (i.e. overyielding) in 108 young experimental tree communities. We found mixed-species communities that intercepted more light than their corresponding monocultures had 84% probability of overyielding. Enhanced LUE, which arose via several pathways, also mattered: the probability of overyielding was 71% when, in a mixture, species with higher 'inherent' LUE (i.e. LUE in monoculture) intercepted more light than species with lower LUE; 94% when dominant species increased their LUE in mixture; and 79% when subordinate species increased their LUE. Our results suggest that greater light interception and greater LUE, generated by inter and intraspecific variation, together drive overyielding in mixed-species forests.
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Affiliation(s)
- Laura J Williams
- Department of Forest Resources, University of Minnesota, St Paul, MN, 55108, USA.,Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, 55108, USA
| | - Ethan E Butler
- Department of Forest Resources, University of Minnesota, St Paul, MN, 55108, USA
| | - Jeannine Cavender-Bares
- Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, 55108, USA
| | - Artur Stefanski
- Department of Forest Resources, University of Minnesota, St Paul, MN, 55108, USA
| | - Karen E Rice
- Department of Forest Resources, University of Minnesota, St Paul, MN, 55108, USA.,Extension Education, University of Florida, Fort Lauderdale, FL, 33314, USA
| | - Christian Messier
- Centre for Forest Research, Université du Québec à Montréal, Montréal, QC, H3C 3P8, Canada.,Institut des sciences de la forêt tempérée, Université du Québec en Outaouais, Ripon, QC, J0V 1V0, Canada
| | - Alain Paquette
- Centre for Forest Research, Université du Québec à Montréal, Montréal, QC, H3C 3P8, Canada
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, St Paul, MN, 55108, USA.,Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2753, Australia
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Functional-structural plant models to boost understanding of complementarity in light capture and use in mixed-species forests. Basic Appl Ecol 2020. [DOI: 10.1016/j.baae.2020.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Nesper M, Kueffer C, Krishnan S, Kushalappa CG, Ghazoul J. Simplification of shade tree diversity reduces nutrient cycling resilience in coffee agroforestry. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maike Nesper
- Ecosystem ManagementInstitute of Terrestrial EcosystemsETH Zurich Zurich Switzerland
| | - Christoph Kueffer
- Plant Ecological GeneticsInstitute of Integrative BiologyETH Zurich Zurich Switzerland
| | - Smitha Krishnan
- Ecosystem ManagementInstitute of Terrestrial EcosystemsETH Zurich Zurich Switzerland
| | - Cheppudira G. Kushalappa
- College of ForestryUniversity of Agricultural and Horticultural Sciences Shimoga Ponnampet Karnataka India
| | - Jaboury Ghazoul
- Ecosystem ManagementInstitute of Terrestrial EcosystemsETH Zurich Zurich Switzerland
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Zheng X, Wei X, Zhang S. Tree species diversity and identity effects on soil properties in the Huoditang area of the Qinling Mountains, China. Ecosphere 2017. [DOI: 10.1002/ecs2.1732] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Xiaofeng Zheng
- College of Forestry; Northwest A&F University; Yangling Shaanxi 712100 China
| | - Xin Wei
- Forest Inventory and Planning Institute of Tibet Autonomous Region; Lhasa Tibet 850000 China
| | - Shuoxin Zhang
- College of Forestry; Northwest A&F University; Yangling Shaanxi 712100 China
- Qinling National Forest Ecosystem Research Station; Northwest A&F University; Yangling Shaanxi 712100 China
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Gilman AC, Letcher SG, Fincher RM, Perez AI, Madell TW, Finkelstein AL, Corrales-Araya F. Recovery of floristic diversity and basal area in natural forest regeneration and planted plots in a Costa Rican wet forest. Biotropica 2016. [DOI: 10.1111/btp.12361] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Alex C. Gilman
- Universidad EARTH; Apartado 4442-1000 San José Costa Rica
| | - Susan G. Letcher
- Department of Environmental Studies; Purchase College (SUNY); Purchase NY 10577 USA
| | - Rita M. Fincher
- Department of Biological and Environmental Sciences; Samford University; Birmingham AL 35229 USA
| | - Ashley I. Perez
- Department of Environmental Studies; Purchase College (SUNY); Purchase NY 10577 USA
| | - Tyler W. Madell
- Department of Environmental Studies; Purchase College (SUNY); Purchase NY 10577 USA
| | - Alex L. Finkelstein
- Department of Environmental Studies; Purchase College (SUNY); Purchase NY 10577 USA
| | - Felix Corrales-Araya
- Finca Los Nacientes; San Ramón de La Virgen; Apartado #87-3069, Correos de Costa Rica, Puerto Viejo, Sarapiqui Costa Rica
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Wills J, Herbohn J, Moreno MOM, Avela MS, Firn J. Next-generation tropical forests: reforestation type affects recruitment of species and functional diversity in a human-dominated landscape. J Appl Ecol 2016. [DOI: 10.1111/1365-2664.12770] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jarrah Wills
- School of Agriculture and Food Science; University of Queensland; St Lucia Qld 4072 Australia
| | - John Herbohn
- School of Agriculture and Food Science; University of Queensland; St Lucia Qld 4072 Australia
- Tropical Forests and People Research Centre; University of the Sunshine Coast; Maroochydore Qld 4558 Australia
| | | | - Mayet S. Avela
- Visayas State University; Baybay City 6521 Leyte Philippines
| | - Jennifer Firn
- School of Earth, Environmental and Biological Sciences; Queensland University of Technology; Gardens Point Brisbane Qld 4000 Australia
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Peralta G, Frost CM, Rand TA, Didham RK, Tylianakis JM. Complementarity and redundancy of interactions enhance attack rates and spatial stability in host-parasitoid food webs. Ecology 2014; 95:1888-96. [PMID: 25163121 DOI: 10.1890/13-1569.1] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stability, yet few studies take into account the multiple predator species attacking multiple prey at different rates in natural communities. Thus, it remains unclear whether these biodiversity mechanisms are important determinants of consumption in entire predator-prey assemblages, such that food-web interaction structure determines community-wide consumption and stability. Here, we use empirical quantitative food webs to study the community-wide effects of functional complementarity and redundancy of consumers (parasitoids) on herbivore control in temperate forests. We find that complementarity in host resource use by parasitoids was a strong predictor of absolute parasitism rates at the community level and that redundancy in host-use patterns stabilized community-wide parasitism rates in space, but not through time. These effects can potentially explain previous contradictory results from predator diversity research. Phylogenetic diversity (measured using taxonomic distance) did not explain functional complementarity or parasitism rates, so could not serve as a surrogate measure for functional complementarity. Our study shows that known mechanisms underpinning predator diversity effects on both functioning and stability can easily be extended to link food webs to ecosystem functioning.
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Alem S, Pavlis J. Conversion of grazing land into Grevillea robusta plantation and exclosure: impacts on soil nutrients and soil organic carbon. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:4331-4341. [PMID: 24696281 DOI: 10.1007/s10661-014-3702-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 03/05/2014] [Indexed: 06/03/2023]
Abstract
Different studies have shown that the effect of land use conversion on soil nutrients and soil organic carbon (SOC) is variable, which indicates that more investigations that focus on different specific geographical locations and land use types are required. The objectives of this study were (1) to evaluate the effect of grazing land (GL) conversion into Grevillea robusta plantation and exclosure (EX) on soil nutrients and soil organic carbon (SOC) and (2) to examine the impact of soil organic matter (SOM) on soil nutrients. To achieve these objectives, soil samples were taken from a soil depth of 20 cm (n = 4) in each of the studied land areas. Each soil sample was analysed in a soil laboratory following a standard procedure. Analysis of variance (ANOVA) and Pearson's correlation coefficient were used for the data analysis. The result indicated that conversion of GL into EX improved the soil electrical conductivity (EC), exchangeable K, cation exchange capacity (CEC), total N and available P (p < 0.05), while the exchangeable Mg, SOC, available K and SOM were decreased (p < 0.05). Conversion of GL into G. robusta improved the soil EC, exchangeable (K, Ca, Mg), CEC, SOC, total N, available K and SOM (p < 0.05). There was a significant relationship between SOM and available P, total N, SOC and EC. There were no significant relationships between SOM and pH, available K and CEC. Finally, the results indicate that both land uses, established in acidic Nitosols, have variable impacts on soil chemical properties and that G. robusta plantation improved most of the soil nutrients and SOC much better than the EX land use.
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Affiliation(s)
- Shiferaw Alem
- Mendel University, Faculty of Forestry and Wood Technology, Zemedelska 3, 61300, Brno, Czech Republic,
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Collet C, Ningre F, Barbeito I, Arnaud A, Piboule A. Response of tree growth and species coexistence to density and species evenness in a young forest plantation with two competing species. ANNALS OF BOTANY 2014; 113:711-719. [PMID: 24323248 PMCID: PMC3936582 DOI: 10.1093/aob/mct285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 11/01/2013] [Indexed: 06/03/2023]
Abstract
BACKGROUND AND AIMS There is considerable evidence for the presence of positive species diversity-productivity relationships in plant populations, but the population parameters determining the type and strength of the relationship are poorly defined. Relationships between species evenness and tree survival or species coexistence are not well established. The objective of this study was to quantify the joint effects of density and species evenness on tree productivity and species coexistence. METHODS A 12-year-old experimental tree plantation mixing two species according to a double gradient of density and species proportion was used. A neighbourhood approach was employed and descriptors of local competition were used to model individual tree growth. Fagus sylvatica and Acer pseudoplatanus were used as model species, as they can be considered as ecologically equivalent in their young stages. KEY RESULTS Density and tree size were primary factors determining individual growth and stand productivity. Species identity had a significant, but less pronounced, role. Stand productivity was highest when species evenness was close to 1 and slightly lower in uneven mixtures. The reduction in stand productivity when species evenness decreased was of similar magnitude irrespective of which species became dominant, indicating symmetric effects for the two species. When examining individual tree growth in response to species proportion for each species separately, it was observed for both species that individual trees exhibited greater growth in uneven mixtures in which the other species was more frequent. CONCLUSIONS The results suggest that mixtures of these two functionally similar species have the highest production at maximum evenness, indicating a complementary effect between them. The presence of a mixture combines both stabilizing mechanisms (individuals from both species show higher growth when surrounded by individuals from the other species) and equalizing mechanisms (the two species have very similar growth curves) that, in turn, determine the species' relative dominance. These processes should act to ensure the long-term coexistence of species.
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Affiliation(s)
- Catherine Collet
- INRA, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), Centre INRA de Nancy, 54280 Champenoux, France
- AgroParisTech, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), ENGREF, 14 rue Girardet, 54000 Nancy, France
| | - François Ningre
- INRA, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), Centre INRA de Nancy, 54280 Champenoux, France
- AgroParisTech, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), ENGREF, 14 rue Girardet, 54000 Nancy, France
| | - Ignacio Barbeito
- INRA, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), Centre INRA de Nancy, 54280 Champenoux, France
- AgroParisTech, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), ENGREF, 14 rue Girardet, 54000 Nancy, France
| | - Anthony Arnaud
- INRA, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), Centre INRA de Nancy, 54280 Champenoux, France
- AgroParisTech, UMR1092, Laboratoire d'Etude des Ressources Forêt Bois (LERFoB), ENGREF, 14 rue Girardet, 54000 Nancy, France
| | - Alexandre Piboule
- ONF, Pôle R&D de Nancy, 11 rue de l'Ile-de-Corse, 54000 Nancy, France
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Li M, Du Z, Pan H, Yan C, Xiao W, Lei J. Effects of neighboring woody plants on target trees with emphasis on effects of understorey shrubs on overstorey physiology in forest communities: a mini-review. COMMUNITY ECOL 2012. [DOI: 10.1556/comec.13.2012.1.14] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rennenberg H, Schmidt S. Perennial lifestyle--an adaptation to nutrient limitation? TREE PHYSIOLOGY 2010; 30:1047-9. [PMID: 20696885 DOI: 10.1093/treephys/tpq076] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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