Data/hora: 01/06/2024 08:00:13

Provedor de dados: | 63
País: | Brazil
Título: | Termite activity in relation to natural grassland soil attributes
Autores: | Kaschuk,Glaciela; Santos,Julio Cesar Pires; Almeida,Jaime Antonio; Sinhorati,Deise Cristina; Berton-Junior,João Francisco.
Data: | 2006-12-01
Ano: | 2006
Palavras-chave: | Chemical and physical soil properties; Clay minerals; Soil biology; Termite mounds.
Resumo: | Soil-feeding termites transport soil for mound building, and this process can affect soil characteristics. To verify the influence of soil termite activity on soil characteristics, samples were collected from top, bottom and center of termite mounds, and of the adjacent area, to assess chemical and physical properties and mineralogical composition. Four replicates of termite mounds and respective adjacent areas were randomly sampled in Lages, Capão Alto, Painel, São José do Cerrito and Coxilha Rica (State of Santa Catarina, southern Brazil). Results of chemical analyses showed a greater content of K, P, Ca, Mg and organic C in the inner part of termite mounds, accompanied by lower pH in relation to soil of the adjacent area. There were no differences regarding clay mineral composition between termite mounds and adjacent soil, however the proportion of sand and clay differed between them. It is concluded that termites modify soil characteristics due to great volume of soil transported per ascensum for mound construction (varying from 20.9 m³ ha-1 to 136.6 m³ ha-1, in this study) which promotes a strong pedo-bio-perturbation and affects nutrient cycling and soil physical properties.
Tipo: | Info:eu-repo/semantics/report
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600013
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162006000600013
Formato: | text/html
Fonte: | Scientia Agricola  v.63 n.6 2006
Fonte: | info:eu-repo/semantics/openAccess