Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply.
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/940939 |
Resumo: | Indicators of soil quality associated with N-cycling were assessed under different land-use systems (native forest ? NAT, reforestation with Araucaria angustifolia or Pinus taeda and agricultural use ? AGR) to appraise the effects on the soil potential for N supply. The soil total N ranged from 2 to 4g⁄ kg (AGR and NAT, respectively), and the microbial biomass N ranged from 80 to 250 mg⁄ kg, being higher in NAT and A. angustifolia, and lower in P. taeda and AGR sites. Activities of asparaginase (ca. 50?200 mg NH 4 + -N ⁄ kg per h), glutaminase (ca. 200?800 mg NH -N ⁄ kg per h) and urease (ca. 80?200 mg NH -N ⁄ kg ⁄ h) were also more intense in the NAT and A. angustifoliareforested soils, indicating greater capacity for N mineralization. The NAT and AGR soils showed the highest and the lowest ammonification rate, respectively (ca. 1 and 0.4 mg NH 4 + -N ⁄ kg per day), but the inverse for nitrification rate (ca. 12 and 26%), indicating a low capacity for N supply, in addition to higher risks of N losses in the AGR soil. A multivariate analysis indicated more similarity between NAT and A. angustifolia-reforested sites, whilst the AGR soil was different and associated with a higher nitrification rate. In general, reforestation with the native species A. angustifolia had less impact than reforestation with the exogenous species P. taeda, considering the soil capacity for N supply. However, AGR use caused more changes, generally decrease in indicators of N-cycling, showing a negative soil management effect on the sustainability of this agroecosystem. |
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Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply.SoloQualidadeNitrificaçãoAmonificaçãoSoil qualityNitrificationAmmonificationIndicators of soil quality associated with N-cycling were assessed under different land-use systems (native forest ? NAT, reforestation with Araucaria angustifolia or Pinus taeda and agricultural use ? AGR) to appraise the effects on the soil potential for N supply. The soil total N ranged from 2 to 4g⁄ kg (AGR and NAT, respectively), and the microbial biomass N ranged from 80 to 250 mg⁄ kg, being higher in NAT and A. angustifolia, and lower in P. taeda and AGR sites. Activities of asparaginase (ca. 50?200 mg NH 4 + -N ⁄ kg per h), glutaminase (ca. 200?800 mg NH -N ⁄ kg per h) and urease (ca. 80?200 mg NH -N ⁄ kg ⁄ h) were also more intense in the NAT and A. angustifoliareforested soils, indicating greater capacity for N mineralization. The NAT and AGR soils showed the highest and the lowest ammonification rate, respectively (ca. 1 and 0.4 mg NH 4 + -N ⁄ kg per day), but the inverse for nitrification rate (ca. 12 and 26%), indicating a low capacity for N supply, in addition to higher risks of N losses in the AGR soil. A multivariate analysis indicated more similarity between NAT and A. angustifolia-reforested sites, whilst the AGR soil was different and associated with a higher nitrification rate. In general, reforestation with the native species A. angustifolia had less impact than reforestation with the exogenous species P. taeda, considering the soil capacity for N supply. However, AGR use caused more changes, generally decrease in indicators of N-cycling, showing a negative soil management effect on the sustainability of this agroecosystem.Universidade Estadual de Londrina- UEL.; Universidade de São Paulo - USP; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade de São Paulo - USP.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade de São Paulo - USP.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL; MARCO ANTONIO NOGUEIRA, CNPSO.FAGOTTI, D. S. L.MIYAUCHI, M. Y. H.OLIVEIRA, A. G.SANTINONI, I. A.EBERHARDT, D. N.NIMTZ, A.RIBEIRO, R. A.PAULA, A. M.QUEIROZ, C. A. S.ANDRADE, G.ZANGARO, W.NOGUEIRA, M. A.2012-12-03T11:11:11Z2012-12-03T11:11:11Z2012-12-0320122013-08-20T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSoil Use and Management, Oxford, v. 28, n. 3, p. 292-298, Sept. 2012.http://www.alice.cnptia.embrapa.br/alice/handle/doc/94093910.1111/j.1475-2743.2012.00418.xenginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:39:04Zoai:www.alice.cnptia.embrapa.br:doc/940939Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:39:04falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:39:04Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
title |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
spellingShingle |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. FAGOTTI, D. S. L. Solo Qualidade Nitrificação Amonificação Soil quality Nitrification Ammonification |
title_short |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
title_full |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
title_fullStr |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
title_full_unstemmed |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
title_sort |
Gradients in N-cycling attributes along forestry and agricultural land-use systems are indicative of soil capacity for N supply. |
author |
FAGOTTI, D. S. L. |
author_facet |
FAGOTTI, D. S. L. MIYAUCHI, M. Y. H. OLIVEIRA, A. G. SANTINONI, I. A. EBERHARDT, D. N. NIMTZ, A. RIBEIRO, R. A. PAULA, A. M. QUEIROZ, C. A. S. ANDRADE, G. ZANGARO, W. NOGUEIRA, M. A. |
author_role |
author |
author2 |
MIYAUCHI, M. Y. H. OLIVEIRA, A. G. SANTINONI, I. A. EBERHARDT, D. N. NIMTZ, A. RIBEIRO, R. A. PAULA, A. M. QUEIROZ, C. A. S. ANDRADE, G. ZANGARO, W. NOGUEIRA, M. A. |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Londrina- UEL.; Universidade de São Paulo - USP; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade de São Paulo - USP.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade de São Paulo - USP.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL.; Universidade Estadual de Londrina - UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
dc.contributor.author.fl_str_mv |
FAGOTTI, D. S. L. MIYAUCHI, M. Y. H. OLIVEIRA, A. G. SANTINONI, I. A. EBERHARDT, D. N. NIMTZ, A. RIBEIRO, R. A. PAULA, A. M. QUEIROZ, C. A. S. ANDRADE, G. ZANGARO, W. NOGUEIRA, M. A. |
dc.subject.por.fl_str_mv |
Solo Qualidade Nitrificação Amonificação Soil quality Nitrification Ammonification |
topic |
Solo Qualidade Nitrificação Amonificação Soil quality Nitrification Ammonification |
description |
Indicators of soil quality associated with N-cycling were assessed under different land-use systems (native forest ? NAT, reforestation with Araucaria angustifolia or Pinus taeda and agricultural use ? AGR) to appraise the effects on the soil potential for N supply. The soil total N ranged from 2 to 4g⁄ kg (AGR and NAT, respectively), and the microbial biomass N ranged from 80 to 250 mg⁄ kg, being higher in NAT and A. angustifolia, and lower in P. taeda and AGR sites. Activities of asparaginase (ca. 50?200 mg NH 4 + -N ⁄ kg per h), glutaminase (ca. 200?800 mg NH -N ⁄ kg per h) and urease (ca. 80?200 mg NH -N ⁄ kg ⁄ h) were also more intense in the NAT and A. angustifoliareforested soils, indicating greater capacity for N mineralization. The NAT and AGR soils showed the highest and the lowest ammonification rate, respectively (ca. 1 and 0.4 mg NH 4 + -N ⁄ kg per day), but the inverse for nitrification rate (ca. 12 and 26%), indicating a low capacity for N supply, in addition to higher risks of N losses in the AGR soil. A multivariate analysis indicated more similarity between NAT and A. angustifolia-reforested sites, whilst the AGR soil was different and associated with a higher nitrification rate. In general, reforestation with the native species A. angustifolia had less impact than reforestation with the exogenous species P. taeda, considering the soil capacity for N supply. However, AGR use caused more changes, generally decrease in indicators of N-cycling, showing a negative soil management effect on the sustainability of this agroecosystem. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-03T11:11:11Z 2012-12-03T11:11:11Z 2012-12-03 2012 2013-08-20T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Soil Use and Management, Oxford, v. 28, n. 3, p. 292-298, Sept. 2012. http://www.alice.cnptia.embrapa.br/alice/handle/doc/940939 10.1111/j.1475-2743.2012.00418.x |
identifier_str_mv |
Soil Use and Management, Oxford, v. 28, n. 3, p. 292-298, Sept. 2012. 10.1111/j.1475-2743.2012.00418.x |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/940939 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503372642975744 |