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dc.contributor.authorAZEVEDO, C. F. e O.
dc.contributor.authorDONAGEMMA, G. K.
dc.contributor.authorPIMENTEL, R. M.
dc.date.accessioned2026-01-26T14:54:01Z-
dc.date.available2026-01-26T14:54:01Z-
dc.date.created2026-01-26
dc.date.issued2025
dc.identifier.citationIn: WORKSHOP ON BIOSYSTEMS ENGINEERING, 11., 2025, Niterói. Proceedings [...]. Niterói: AGRHA Consulting, 2025. p. 83-88. WEB 11.0.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1183864-
dc.descriptionIdentifying practical, low-cost indicators for diagnosing pasture degradation is crucial for the sustainability of Brazilian livestock farming. This challenge is especially relevant in humid tropical regions, such as Cachoeiras de Macacu, RJ, where extensive livestock farming occurs in hillside areas on clayey Red-Yellow Latosols. In this context, this study aimed to evaluate the effectiveness of vegetative indicators in characterizing different levels of degradation in pastures established under these edaphoclimatic conditions. The assessments were conducted in areas of Urochloa humidicola subjected to three levels of degradation (mild, moderate, and severe), previously defined by visual assessment as proposed by Spain and Gualdrón (1991). Each plot measured 500 m², with height and cover assessed at 50 points distributed throughout the plot. Biomass was assessed by cutting five samples into 0.25 m² squares arranged in a diagonal transect. Forage cover was 97.5% (N1), 76.0% (N2), and 58.5% (N3), associated with an increase in weeds and exposed soil. Pasture height decreased significantly (ANOVA, p = 0.018), ranging from 33 cm (N1) to 4 cm (N3). Biomass followed the same pattern (ANOVA, p = 0.0177), with 3,224, 1,504, and 808 kg DM/ha, respectively. Pearson's correlation showed a strong positive association between height, biomass, and cover (r = 0.94; r = 0.73) and a negative association with weeds and exposed soil (r = -0.87). We conclude that height, biomass, and soil cover are accessible and effective indicators for monitoring pasture degradation, providing valuable input for management decision-making and enabling interventions before the degradation process reaches severe stages.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectDegraded pasture
dc.subjectSoil cover rate
dc.subjectPasture height
dc.subjectDegradation indicators
dc.subjectLatossol
dc.titlePasture quality indicators for classifying degradation levels in Cachoeiras de Macacu – RJ.
dc.typeArtigo em anais e proceedings
dc.subject.thesagroBiomassa
dc.subject.thesagroLatossolo
dc.subject.thesagroDegradação Ambiental
dc.subject.thesagroPastagem
dc.subject.nalthesaurusBiomass
dc.subject.nalthesaurusUrochloa humidicola
riaa.ainfo.id1183864
riaa.ainfo.lastupdate2026-01-26
dc.contributor.institutionCLARA FONTES E OLIVEIRA AZEVEDO, UNIVERSIDADE FEDERAL FLUMINENSE; GUILHERME KANGUSSU DONAGEMMA, CNPS; RÓBERSON MACHADO PIMENTEL, UNIVERSIDADE FEDERAL FLUMINENSE.
Aparece en las colecciones:Artigo em anais de congresso (CNPS)

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