Leaf area index and above-ground biomass of terra firme rain forest and adjacent clearings in Amazonia.

dc.contributorInstitute of Hydrology; EMBRAPA-CPAA; INPE; UFMG.
dc.creatorMCWILLIAM, A. L. C.
dc.creatorROBERTS, J. M.
dc.creatorCABRAL, O. M. R.
dc.creatorLEITAO, M. V. B. R.
dc.creatorCOSTA, A. C. L. de
dc.creatorMAITELLI, G. T.
dc.creatorZAMPARONI, C. A. G. P.
dc.date1993
dc.date1997-01-08
dc.date.accessioned2017-03-06T22:00:32Z
dc.date.available2017-03-06T22:00:32Z
dc.identifier3394
dc.identifierhttp://www.alice.cnptia.embrapa.br/handle/doc/667430
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/320400
dc.descriptionLeaf area index (L*) and above-ground biomass were determined by destructive sampling for a 400m2 area of terra firme Amazonian rain forest and for an adjacent clearing. While L* in the forest varied considerably with height though the canopy for four separately sampled 100m2 subplots, the cumulative L* was similar with a mean value of 5.7 + ou - 0.5. The total above-ground dry biomass of the forest was 265 + ou - 95t ha-1, while the leaf dry biomass was 6.3 + ou - 0.5t ha-1. The specific leaf area (SLA, cm2g-1) was determined, and found to vary linearlywith canopy depth rising from 65cm2g-1 at the canopy top, to 114cm2g-1at 5m above the forest floor. The average for the four subplots was 90cm2g-1. The leaf area index of grass in the clearing (blade only) averaged 0.8 + ou - 0.4, and total green area index (blade + stem) averaged 1.2 + ou - 0.6. Total above-ground dry biomass (blade, stem) was 2.3 + ou - 0.6t ha-1, while including dead plant material gave a total dry biomass of 5.6 + ou - 2.1t ha-1. Specific leaf area of the grass was 79cm2g-1. The results clearly demonstrate the profound change in leaf area and biomass which accompany Amazonian deforestation.
dc.description1993
dc.languageen
dc.publisherFunctional Ecology, v. 7, p. 310-317, 1993.
dc.relationEmbrapa Amazônia Ocidental - Artigo em periódico indexado (ALICE)
dc.subjectFloresta tropical umida
dc.subjectDesmatamento
dc.subjectBiomassa
dc.subjectMateria seca
dc.subjectFolha
dc.subjectArea foliar
dc.subjectBrasil
dc.subjectAmazonia
dc.subjectTropical rain forest
dc.subjectDeforestation
dc.subjectBiomass
dc.subjectDry matter
dc.subjectLeaves
dc.subjectLeaf area
dc.titleLeaf area index and above-ground biomass of terra firme rain forest and adjacent clearings in Amazonia.
dc.typeArtículos de revistas


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