Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities
We investigated the nitrogen pools in monocultures of legume species widely used in reforestation in Brazil that have contrasting growth and nitrogen acquisition strategies. The plantations were established with the slow-growing and N<sub>2</sub>-fixing tree <i>Anadenanthera peregr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Nitrogen |
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| Online Access: | https://www.mdpi.com/2504-3129/2/1/6 |
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| author | Kelly Nery Bighi Ranieri Ribeiro Paula Marcos Vinícius Winckler Caldeira Diego Lang Burak Eduardo de Sá Mendonça Paulo Henrique de Souza William Macedo Delarmelina Fabiano de Carvalho Balieiro |
| author_facet | Kelly Nery Bighi Ranieri Ribeiro Paula Marcos Vinícius Winckler Caldeira Diego Lang Burak Eduardo de Sá Mendonça Paulo Henrique de Souza William Macedo Delarmelina Fabiano de Carvalho Balieiro |
| author_sort | Kelly Nery Bighi |
| collection | DOAJ |
| description | We investigated the nitrogen pools in monocultures of legume species widely used in reforestation in Brazil that have contrasting growth and nitrogen acquisition strategies. The plantations were established with the slow-growing and N<sub>2</sub>-fixing tree <i>Anadenanthera peregrina</i> var. peregrina, and the fast-growing and non-fixing tree <i>Schizolobium parahyba</i> var. amazonicum. The measurements of N pools in the tree biomass and the soil followed standard methods and were carried out on 54 experimental plots. The N<sub>2</sub> fixation pools were evaluated by abundance natural of <sup>15</sup>N and the N accretion methods. The soil N content was of similar magnitude between species and stand densities. The species showed similar amounts of N in the biomass, but divergent patterns of N accumulation, as well as the <sup>15</sup>N signature on the leaves. <i>S. parahyba</i> accumulated most N in the stem, while <i>A. peregrina</i> accumulated N in the roots and leaves. However, the N accumulation in biomass of <i>A. peregrina</i> stand was less constrained by environment than in <i>S. parahyba</i> stands. The percentage of N derived from N<sub>2</sub> fixation in <i>A. peregrina</i> stands decreased with the increase of stand density. The biological N<sub>2</sub> fixation estimates depended on the method and the response of tree species to environment. |
| first_indexed | 2024-03-10T13:13:36Z |
| format | Article |
| id | doaj.art-855583acc2f04a5bbe1f89f3bdfe5e0d |
| institution | Directory Open Access Journal |
| issn | 2504-3129 |
| language | English |
| last_indexed | 2024-03-10T13:13:36Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nitrogen |
| spelling | doaj.art-855583acc2f04a5bbe1f89f3bdfe5e0d2023-11-21T10:32:49ZengMDPI AGNitrogen2504-31292021-03-0121869810.3390/nitrogen2010006Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand DensitiesKelly Nery Bighi0Ranieri Ribeiro Paula1Marcos Vinícius Winckler Caldeira2Diego Lang Burak3Eduardo de Sá Mendonça4Paulo Henrique de Souza5William Macedo Delarmelina6Fabiano de Carvalho Balieiro7Centro de Ciências Agrárias e Engenharias, Departamento de Ciências Florestais e da Madeira, Programa de Pós-Graduação em Ciências Florestais, Universidade Federal do Espírito Santo, Jerônimo Monteiro 29550-000, BrazilCentro de Ciências Agrárias e Engenharias, Departamento de Ciências Florestais e da Madeira, Programa de Pós-Graduação em Ciências Florestais, Universidade Federal do Espírito Santo, Jerônimo Monteiro 29550-000, BrazilCentro de Ciências Agrárias e Engenharias, Departamento de Ciências Florestais e da Madeira, Programa de Pós-Graduação em Ciências Florestais, Universidade Federal do Espírito Santo, Jerônimo Monteiro 29550-000, BrazilCentro de Ciências Agrárias e Engenharias, Departamento de Agronomia, Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Espírito Santo, Alegre 29500-000, BrazilCentro de Ciências Agrárias e Engenharias, Departamento de Agronomia, Programa de Pós-Graduação em Produção Vegetal, Universidade Federal do Espírito Santo, Alegre 29500-000, BrazilDepartamento Acadêmico de Agricultura e Ambiente, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, Rio Pomba 36180-000, BrazilCoordenadoria do Curso Técnico em Florestas, Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Ibatiba 29395-000, BrazilEmbrapa Solos, Rio de Janeiro 05407-002, BrazilWe investigated the nitrogen pools in monocultures of legume species widely used in reforestation in Brazil that have contrasting growth and nitrogen acquisition strategies. The plantations were established with the slow-growing and N<sub>2</sub>-fixing tree <i>Anadenanthera peregrina</i> var. peregrina, and the fast-growing and non-fixing tree <i>Schizolobium parahyba</i> var. amazonicum. The measurements of N pools in the tree biomass and the soil followed standard methods and were carried out on 54 experimental plots. The N<sub>2</sub> fixation pools were evaluated by abundance natural of <sup>15</sup>N and the N accretion methods. The soil N content was of similar magnitude between species and stand densities. The species showed similar amounts of N in the biomass, but divergent patterns of N accumulation, as well as the <sup>15</sup>N signature on the leaves. <i>S. parahyba</i> accumulated most N in the stem, while <i>A. peregrina</i> accumulated N in the roots and leaves. However, the N accumulation in biomass of <i>A. peregrina</i> stand was less constrained by environment than in <i>S. parahyba</i> stands. The percentage of N derived from N<sub>2</sub> fixation in <i>A. peregrina</i> stands decreased with the increase of stand density. The biological N<sub>2</sub> fixation estimates depended on the method and the response of tree species to environment.https://www.mdpi.com/2504-3129/2/1/6forest plantationforest restorationN<sub>2</sub> biological fixationfunctional traits<sup>15</sup>N natural abundanceN balance |
| spellingShingle | Kelly Nery Bighi Ranieri Ribeiro Paula Marcos Vinícius Winckler Caldeira Diego Lang Burak Eduardo de Sá Mendonça Paulo Henrique de Souza William Macedo Delarmelina Fabiano de Carvalho Balieiro Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities Nitrogen forest plantation forest restoration N<sub>2</sub> biological fixation functional traits <sup>15</sup>N natural abundance N balance |
| title | Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities |
| title_full | Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities |
| title_fullStr | Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities |
| title_full_unstemmed | Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities |
| title_short | Nitrogen Pools in Tropical Plantations of N<sub>2</sub>-Fixing and Non-N<sub>2</sub>-Fixing Legume Trees under Different Tree Stand Densities |
| title_sort | nitrogen pools in tropical plantations of n sub 2 sub fixing and non n sub 2 sub fixing legume trees under different tree stand densities |
| topic | forest plantation forest restoration N<sub>2</sub> biological fixation functional traits <sup>15</sup>N natural abundance N balance |
| url | https://www.mdpi.com/2504-3129/2/1/6 |
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