Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China

Detalhes bibliográficos
Autor(a) principal: She, Dongli Li
Data de Publicação: 2010
Outros Autores: Shao, Ming an, Timm, Luis Carlos, Reichardt, Klaus
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/799
Resumo: The objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil.
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spelling Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, ChinaVariações temporais de uma sucessão de alfafa e de propriedades físicas do solo a elas relacionadas no Loess Plateau, ChinaMedicago sativa; agropastoral transition zone; community characteristics; soil physical properties; soil water restorationMedicago sativa; zona de transição agropastoril; comunidades características; propriedades físicas do solo; recuperação da água no soloThe objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil.O objetivo deste trabalho foi investigar a relação entre variações em uma comunidade de plantas e variações nas propriedades físicas do solo e na disponibilidade de água, durante uma sucessão de alfafa (Medicago sativa L.) por vegetação natural, no Platô Loess, na China. Dados de uma sucessão de 32 anos foram examinados e índices vegetativos foram comparados em relação às variações de densidade do solo e do armazenamento de água no solo. A produção de alfafa aumentou aproximadamente por sete anos, e então decresceu, e a alfafa foi substituída por uma comunidade natural dominada pela Stipa bungeana, que começou a crescer vigorosamente dez anos após a semeadura da alfafa. A densidade do solo aumentou com o tempo, e a deterioração da alfafa se deu principalmente em razão da redução severa da água armazenada no solo, que atingiu o mínimo quando a degradação da alfafa começou. Os resultados indicam que o consumo de água pela alfafa poderia ser reduzido pela redução na densidade de plantas e que a recarga de água no solo poderia ser facilitada pela rotação entre a alfafa e outras culturas, vegetação natural ou solo nu.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraNational Natural Science Foundation of China (90502006) and “One Hundred Elitist” Program of the Chinese Academy of SciencesShe, Dongli LiShao, Ming anTimm, Luis CarlosReichardt, Klaus2010-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/799Pesquisa Agropecuaria Brasileira; v.44, n.2, fev. 2009; 189-196Pesquisa Agropecuária Brasileira; v.44, n.2, fev. 2009; 189-1961678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/799/5664https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/681https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/682https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/1153info:eu-repo/semantics/openAccess2014-11-21T17:55:56Zoai:ojs.seer.sct.embrapa.br:article/799Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-21T17:55:56Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
Variações temporais de uma sucessão de alfafa e de propriedades físicas do solo a elas relacionadas no Loess Plateau, China
title Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
spellingShingle Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
She, Dongli Li
Medicago sativa; agropastoral transition zone; community characteristics; soil physical properties; soil water restoration
Medicago sativa; zona de transição agropastoril; comunidades características; propriedades físicas do solo; recuperação da água no solo
title_short Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
title_full Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
title_fullStr Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
title_full_unstemmed Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
title_sort Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China
author She, Dongli Li
author_facet She, Dongli Li
Shao, Ming an
Timm, Luis Carlos
Reichardt, Klaus
author_role author
author2 Shao, Ming an
Timm, Luis Carlos
Reichardt, Klaus
author2_role author
author
author
dc.contributor.none.fl_str_mv
National Natural Science Foundation of China (90502006) and “One Hundred Elitist” Program of the Chinese Academy of Sciences
dc.contributor.author.fl_str_mv She, Dongli Li
Shao, Ming an
Timm, Luis Carlos
Reichardt, Klaus
dc.subject.por.fl_str_mv Medicago sativa; agropastoral transition zone; community characteristics; soil physical properties; soil water restoration
Medicago sativa; zona de transição agropastoril; comunidades características; propriedades físicas do solo; recuperação da água no solo
topic Medicago sativa; agropastoral transition zone; community characteristics; soil physical properties; soil water restoration
Medicago sativa; zona de transição agropastoril; comunidades características; propriedades físicas do solo; recuperação da água no solo
description The objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil.
publishDate 2010
dc.date.none.fl_str_mv 2010-11-09
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/799
url https://seer.sct.embrapa.br/index.php/pab/article/view/799
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/799/5664
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/681
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/682
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/799/1153
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.44, n.2, fev. 2009; 189-196
Pesquisa Agropecuária Brasileira; v.44, n.2, fev. 2009; 189-196
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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