@article{fdi:010058249,
  title = {{C}onsequences of forest conversion to pasture and fallow on soil microbial biomass and activity in the eastern {A}mazon},
  author = {{M}elo, {V}. {S}. and {D}esjardins, {T}hierry and {S}ilva, {M}. {L}. and {S}antos, {E}. {R}. and {S}arrazin, {M}ax and {S}antos, {M}. {M}. {L}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he main change in soil use in {A}mazonia is, after slash and burn deforestation followed by annual crops, the establishment of pastures. {T}his conversion of forest to pasture induces changes in the carbon cycle, modifies soil organic matter content and quality and affects biological activity responsible for numerous biochemical and biological processes essential to ecosystem functioning. {T}he aim of this study was to assess changes in microbial biomass and activity in fallow and pasture soils after forest clearing. {T}he study was performed in smallholder settlements of eastern {B}razilian {A}mazonia. {S}oil samples from depths of 02, 25 and 510 cm were gathered in native forest, fallow land 810 yr old and pastures with ages of 12, 57 and 1012 yr. {O}nce fallow began, soil microbial biomass and its activity showed little change. {I}n contrast, conversion to pasture modified soil microbial functioning significantly. {M}icrobial biomass and its basal respiration decreased markedly after pasture establishment and continued to decrease with pasture age. {T}he increase in metabolic quotient in the first years of pasture indicated a disturbance in soil functioning. {O}ur study confirms that microbial biomass is a sensitive indicator of soil disturbance caused by land-use change.},
  keywords = {{S}oil microbial carbon ; microbial basal respiration ; metabolic quotient ; tropical soil ; deforestation ; land use ; {AMAZONIE} ; {BRESIL} ; {PARA} {ETAT}},
  booktitle = {},
  journal = {{S}oil {U}se and {M}anagement},
  volume = {28},
  numero = {4},
  pages = {530--535},
  ISSN = {0266-0032},
  year = {2012},
  DOI = {10.1111/sum.12003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010058249},
}