caa a22 4500 477094422 CHVBK 20180405111523.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01771134 doi (NATIONALLICENCE)springer-10.1007/BF01771134 Nutrients in soil solution following selective logging of a humid tropical ‘terra firme' forest north of Manaus, Brazil [Elektronische Daten] [W. Mello Ivo, S. Ferreira, Y. Biot, S. Ross] Sustainable use of the Amazon forest for timber production is conditioned by the effect of logging on the system's nutrient cycling. This paper reports the results of a soil moisture and soil water chemistry monitoring campaign before and immediately after a selective logging which removed 35 m3 wood/ha. Soil moisture was measured using tensiometers, and soil water chemistry using suction samplers in five disturbance classes: tractor tracks, clearing centres, clearing edges, forest edges and untouched forest. The results show that the soil under the tractor tracks and clearings contained more moisture than under the untouched forest. The suction samplers extracted substantially more nitrate, ammonium, calcium, magnesium and potassium from the clearing centres, the tractor tracks and the clearing edges than from the forest sites. The results are explained in terms of altered microbial activity, changes in crown interception and uptake by roots. Chapman & Hall, 1996 tropical forests nationallicence logging nationallicence soil moisture nationallicence hydrochemistry nationallicence Mello Ivo W. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut Ferreira S. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut Biot Y. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut Ross S. SGS Environment, Yorkshire House, Chapel Street, L3 9AG, Liverpool, Merseyside, UK aut Environmental Geochemistry and Health Kluwer Academic Publishers 18/2(1996-06-01), 69-75 0269-4042 18:2<69 1996 18 10653 https://doi.org/10.1007/BF01771134 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01771134 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mello Ivo W. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut NATIONALLICENCE 700 1- Ferreira S. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut NATIONALLICENCE 700 1- Biot Y. Projeto BIONTE, Institute Nacional de Pesquisas da Amazônia, Caixa Postal 478, Cep 69011-970, Manaus/AM, Brazil aut NATIONALLICENCE 700 1- Ross S. SGS Environment, Yorkshire House, Chapel Street, L3 9AG, Liverpool, Merseyside, UK aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Kluwer Academic Publishers 18/2(1996-06-01), 69-75 0269-4042 18:2<69 1996 18 10653 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer