1988
DOI: 10.1080/00103628809367946
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Enzyme activities in hill land soils of the Appalachian region

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Cited by 11 publications
(13 citation statements)
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“…efficiency than in the top soil (Baligar et al 1988;Lavahun et al 1996). The decrease from the values of the 0-to 15-cm layer was more substantial for the alkaline phosphatase and dehydrogenase (58 to 67%) than for the acid phosphatase (23%).…”
Section: Discussionmentioning
confidence: 91%
“…efficiency than in the top soil (Baligar et al 1988;Lavahun et al 1996). The decrease from the values of the 0-to 15-cm layer was more substantial for the alkaline phosphatase and dehydrogenase (58 to 67%) than for the acid phosphatase (23%).…”
Section: Discussionmentioning
confidence: 91%
“…Com relação ao efeito de profundidade, na média das doses e épocas de amostragem, nos dois anos, a atividade foi significativamente maior a 0-20 cm (5,11, em 92/93, e 10,18 µg de PNP g -1 terra h -1 , em 93/94) em relação a 20-40 cm (4,09, em 92/93, e 7,49 µg de PNP g -1 terra h -1 , em 93/94), comportamento semelhante ao encontrado por Baligar et al (1988). A maior atividade enzimática no segundo ano coincidiu com o maior teor de S-reserva observado nesse mesmo período.…”
Section: Arilsulfataseunclassified
“…A maior atividade enzimática no segundo ano coincidiu com o maior teor de S-reserva observado nesse mesmo período. A atividade da arilsulfatase foi inferior à encontrada em vários solos em condições de clima temperado, que variaram de 28 a 425 µg de PNP g -1 terra h -1 na camada superficial, sem relação com o conteúdo de matéria orgânica (Baligar et al, 1988). Nesse caso, os autores sugeriram que a qualidade da matéria orgânica apresentou maiores efeitos sobre a atividade enzimática que a sua quantidade.…”
Section: Arilsulfataseunclassified
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“…This enzyme is released by microorganisms and vegetables through exudates of the root system or after death and disruption of root cells (Tabatabai and Bremer, 1970). According to Baligar et al (1988), the arylsulphatase enzyme activity in the soil decreases with a reduction in the amount of organic matter and an increase in soil depth. Pinto and Nahas (2002) asserted that the arylsulphatase enzyme activity in integrated forest soil (integration between agriculture, livestock activities and forest plantation) was significantly higher compared with that of other studied soils (isolated forest, eucalyptus plantation, pasture and corn crop).…”
Section: Introductionmentioning
confidence: 99%