Nutrient deficiency enhances the rate of short-term belowground transfer of nitrogen from Acacia mangium to Eucalyptus trees in mixed-species plantations

Oliveira, I.R.; Bordron, Bruno; Laclau, Jean‐Paul; Paula, Ranieri Ribeiro; Ferraz, Alexandre V.; Gonçalves, José Leonardo de Moraes; Maire, Guerric Le; Bouillet, Jean‐Pierre

doi:10.1016/j.foreco.2021.119192

Cited by 19 publications

(11 citation statements)

References 73 publications

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“…Chalk et al pointed out that N transfer depended on the soil N status and the number of labeled urea applications, and transfer from leguminous to non-leguminous plants improved when the soil available N content was low [9]. Oliveira et al suggested that higher rates of belowground transfer of N from leguminous plants to Eucalyptus trees in non-fertilized than in fertilized mixed-species stands [17]. Our results were also consistent with this finding.…”

Section: Soil N Concentration and The Growth Duration Of Plants Are The Main Factors Affecting N Transfersupporting

confidence: 91%

“…Although the use of different 15 N-based techniques has greatly facilitated investigations of N transfer pathways between adjacent leguminous and nonleguminous plants [9,10], reliable quantification of this complex process is difficult [11]. The amount of N transferred from N-fixing leguminous species to non-leguminous species has been found to range from 3.3-72.0% of legume N [6,[12][13][14], such as from faba bean to wheat [15], from peanut to rice [16] or from Acacia mangium to Eucalyptus [17]. However, the relative importance of N transfer depends to a great extent on the plant species, N management practices, and methods used to determine N resources.…”

Section: Introductionmentioning

confidence: 99%

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Bidirectional Nitrogen Transfer and Plant Growth in a Mixed Plantation of N2-Fixing Species and Eucalyptus urophylla × E. grandis under Different N Applications

Yao

Goodale

Yang

et al. 2021

Forests

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N2-fixing species play a crucial role in mixed-plantations as they improve stand productivity. To quantify the N transfer from N2-fixing species to Eucalyptus (Eucalyptus urophylla × E. grandis) in N2-fixing species/Eucalyptus plantations, we established a pot experiment and confirmed the occurrence of this process under natural conditions. The 15N was traced in labeled species as well as in neighboring tree species after labeling, and the growth was evaluated in short-term natural trials. Our results showed that a bidirectional N transfer occurred. The amount of net N transfer was 21.8–127.0 mg N plant−1, which was equal to 1.5–21.2% of the total nitrogen (TN) that accumulated in Eucalyptus plants under pot conditions, was transferred from Dalbergia odorifera to Eucalyptus. The amount of N transferred significantly decreased with the increasing N application rate but increased with time after labeling. Compared with the results for the Eucalyptus monocrop, the soil N concentration (including NO3−-N and NH4+-N) greatly improved when D. odorifera was introduced together with Eucalyptus under both field and pot conditions. Furthermore, the results under field conditions were consistent with the results of the pot experiment. The dry matter (DM) yield (14.5–16.4%) and the N content (5.1–9.6%) in Eucalyptus increased when mixed together with D. odorifera, but the N content in and DM yield of D. odorifera slightly decreased. It is concluded that the N transfer between Eucalyptus and D. odorifera is a much more important dynamic process than previously recognized, and Eucalyptus and legume intercropping is a successful management practice because N transfer provides a significant amount of N required for Eucalyptus productivity.

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Section: Soil N Concentration and The Growth Duration Of Plants Are The Main Factors Affecting N Transfersupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Bidirectional Nitrogen Transfer and Plant Growth in a Mixed Plantation of N2-Fixing Species and Eucalyptus urophylla × E. grandis under Different N Applications

Yao

Goodale

Yang

et al. 2021

Forests

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“…For instance, N2-fixing species, such as A. cincinnata and A. mangium, can meet its nitrogen requirement through fixing atmospheric N in their roots [24], while supplying N for accompanying species in mixed planting management [25]. Short-term belowground N transfer from A. mangium, N2 fixing tree species, to Eucalyptus trees has been observed in a mixed-species plantation [26]. Likewise, it was found that non-N2-fixing trees utilize atmospheric N fixed by the N2-fixing trees, when grown together, presumably through constricted root connections or organic forms of N from the litter layer.…”

Section: Effects Of Species Mixture On the Growth Of Acacia Cincinnatamentioning

confidence: 99%

Effects of Species Mixture on Growth, Biomass of Understory Vegetation, Soil Properties, and Bacterial Diversity of Acacia cincinnata Plantation

Li¹,

Sun²,

Wang³

et al. 2023

Preprint

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Establishment of mixed-forests has gained increasing attention as a way to optimize forest production, to improve ecological benefits and as a safety net for impacts of future climate uncertainties. However, practical knowledge about which species and what proportion of them should be mixed is still lacking. Thus, this study was conducted with the aim of identify suitable species for mixture with Acacia cincinnata. The mixture tested in the present study was A. cincinnata + Eucalyptus robusta (6:4), A. cincinnata + Acacia mangium (3:1) and monospecifc plantation of A. cincinnata established in 2014. After 7 years of growth, we analyzed the effects of species mixture on growth of tree species, understory vegetation and soil physico-chemical properties as well as bacterial community structure and diversity. The results showed that species mixture had no significant effect on growth characteristics, such as diameter and singletree volume of A. cincinnata. However, mixed-species planting increased the total stocking volume compered to monospecific plantation of A. cincinnata. Furthermore, stand mixture significantly increased species diversity, biomass and nutrient stocks in the understory vegetation. The soil of mixed stand of A. cincinnata and A. mangium had the highest C and N contents, whereas the soil of pure A. cincinnata stand had the highest P content. The diversity of soil bacterial community were the highest in the mixed stand of A. cincinnata and E- robusta, followed by pure A. cincinnata stand and A. cincinnata + A. mangium stand. The relative abundance of Proteobacteria and Actinobacteria was higher in soils of mixed stands. Furthermore, the relative abundance of Firmicutes was high in the soil of A. cincinnata + A. mangium while the relative abundance of Verrucomicrobia was high in A. cincinnata + E. robusta stand. As a whole, the study demonstrated that establishing mixed-species plantation enhance the diversity and composition of understory vegetation, soil physico-chemical and soils bacterial community; thereby increasing biodiversity, nutrient cycling and carbon sequestration in the biomass and soil. From the viewpoints of forest productivity and ecological benefits, it is advisable to establish a mixed plantation of A. cincinnata and A- mangium in southern China. As a whole, our work revealed that the sustainability of mixed-species plantation relies on the interactions between soil attributes, vegetation, and bacterial community.

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“…With the use of isotopes, interplant transfer of various macro-and micro-elements essential for plants, such as nitrogen, phosphorus, and carbon has been reported to follow concentration gradients through shared mycorrhizal fungi, root exudates or through root decomposition (Fitter et al, 1998;Graves et al, 1997;Jones et al, 2009;Kravchenko et al, 2021;Ren et al, 2013;Robinson & Fitter, 1999). Interplant nutrient transfer has been mainly studied in agroecosystems (Chalk & Smith, 1997;Jalonen et al, 2009;Pirhofer-Walzl et al, 2012;Sierra et al, 2007;Sierra & Nygren, 2006), and in the case of nitrogen (N), frequently from a leguminous to nonleguminous species, since this combination maximizes the differences in N concentration between the donor and recipient plants (Chalk & Smith, 1997;Jalonen et al, 2009;Oliveira et al, 2021;Pirhofer-Walzl et al, 2012;Thilakarathna et al, 2016). In some cases, the N transferred from the legume can account for up to 20% of the total nitrogen of its neighbouring plant (Peoples et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen transfer between plant species with different temporal N‐demand

Montesinos‐Navarro

2023

Ecology Letters

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Phenological segregation among species in a community is assumed to promote coexistence, as using resources at different times reduces competition. However, other unexplored nonalternative mechanisms can also result in a similar outcome. This study first tests whether plants can redistribute nitrogen (N) among them based on their nutritional temporal demand (i.e. phenology). Field 15N labelling experiments showed that 15N is transferred between neighbour plants, mainly from low N‐demand (late flowering species, not reproducing yet) to high N‐demand plants (early flowering species, currently flowering‐fruiting). This can reduce species' dependence on pulses of water availability, and avoid soil N loss through leaching, having relevant implications in the structuring of plant communities and ecosystem functioning. Considering that species phenological segregation is a pervasive pattern in plant communities, this can be a so far unnoticed, but widely spread, ecological process that can predict N fluxes among species in natural communities, and therefore impact our current understanding of community ecology and ecosystem functioning.

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Nutrient deficiency enhances the rate of short-term belowground transfer of nitrogen from Acacia mangium to Eucalyptus trees in mixed-species plantations

Cited by 19 publications

References 73 publications

Bidirectional Nitrogen Transfer and Plant Growth in a Mixed Plantation of N2-Fixing Species and Eucalyptus urophylla × E. grandis under Different N Applications

Bidirectional Nitrogen Transfer and Plant Growth in a Mixed Plantation of N2-Fixing Species and Eucalyptus urophylla × E. grandis under Different N Applications

Effects of Species Mixture on Growth, Biomass of Understory Vegetation, Soil Properties, and Bacterial Diversity of Acacia cincinnata Plantation

Nitrogen transfer between plant species with different temporal N‐demand

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