Pastures Dynamics
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Population dynamics and description of larva and pupa of Cyclocephala tucumana Bréthes, 1904 in West-Central Brazil, and remarks on immatures of other Cyclocephala species (Coleoptera: Scarabaeidae: Dynastinae)
ABSTRACT Some species of Cyclocephala Dejean, 1821 (Coleoptera, Scarabaeidae, Dynastinae, Cyclocephalini) were reported as crop or pasture pests. Within this genus, Cyclocephla tucumana Bréthes, 1904 was noticed in cultivated areas in South Brazil, 2009 − 2010. Other study found larvae of the species associated with pastures in Aquidauana, Mato Grasso do
Rev. Bras. entomol.. Publicado em: 13/01/2020
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2. Dinâmica do desmatamento na Amazônia e seus impactos na hidrologia: bacia do Rio Machadinho - Rondônia / Brasil
Resumo A bacia hidrográfica do rio Machadinho é um exemplo de ocupação desordenada presente na região amazônica, na qual foram desmatadas grandes áreas com consequente conversão da floresta em pastagens e em núcleos urbanos. O presente trabalho tem o objetivo de analisar os impactos na hidrologia (vazão, precipitação e evapotranspiração) da bac
Ciênc. Florest.. Publicado em: 02/12/2019
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3. BEHAVIOR OF PANTANEIRA AND GIROLANDO HEIFERS REARED ON PASTURES IN THE FOUR SEASONS OF THE YEAR
RESUMO O objetivo deste estudo foi avaliar a dinâmica alimentar e fisiológica de novilhas Pantaneira e Girolando criadas em pastagem e a preferência por três tipos de sombras naturais. Foram utilizados 14 animais, sete de cada raça, com peso médio de 328 kg (Pantaneira) e 430 kg (Girolando). O pasto consistia em Panicum maximum. Foi avaliado o comporta
Rev. Caatinga. Publicado em: 21/10/2019
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4. Deforestation Dynamics in the Nova Bonal Sustainable Development Project, Acre, Brazil
ABSTRACT This study assessed the dynamics of the land use and cover changes, deforestation trends and the current status of the Legal Forest Reserves (LFR) and Permanent Protected areas (PPA) in the Nova Bonal Sustainable Development Project (SDP) between 1997-2014. Deforestation datasets and fieldwork were used in this analysis. Our results indicate that th
Floresta Ambient.. Publicado em: 12/09/2019
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5. Biodiversity studies through public-private partnership (PPP): The case of Fazenda São Nicolau in the northwest of Mato Grosso
Abstract: Peugeot-ONF Forest Carbon Sink Project, located at Fazenda São Nicolau (FSN) in Cotriguaçu Municipality, is a public-private initiative and has been supported by several French and Brazilian institutions. Its Research Program includes studies aiming Biodiversity Conservation, Ecology, Carbon Dynamics, Silvicultural Techniques. FSN comprises a hig
An. Acad. Bras. Ciênc.. Publicado em: 29/07/2019
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6. Grazing height management does not change the persistence pathway of Andropogon lateralis in a natural pasture
Resumo: O objetivo deste trabalho foi avaliar a dinâmica e a estabilidade populacional de perfilhos do capim-caninha (Andropogon lateralis) em pastagem natural submetida a diferentes alturas de manejo, sob método de lotação intermitente. O experimento foi realizado em delineamento de blocos ao acaso, com quatro tratamentos e quatro repetições, em 16 un
Pesq. agropec. bras.. Publicado em: 06/05/2019
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7. NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth
ABSTRACT The present study aimed to characterize the dynamics of NDVI and meteorological conditions, relating both to the annual dynamics of biomass accumulation in natural pastures of the Pampa biome as a way of subsidizing growth modeling. Forage accumulation rate data from a long-term experiment, NDVI data from the MODIS images, and meteorological data me
Bragantia. Publicado em: 23/04/2018
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8. Characterization and Classification of Soils under Forest and Pasture in an Agroextractivist Project in Eastern Amazonia
ABSTRACT: Knowledge of soils in the Amazon rainforest is becoming increasingly essential due to dynamics adopted by farmers that substitute forest for pastures, together with growing pressure from diverse segments of society towards adoption of sustainable production systems. The objective of this study was to characterize the soils along two toposequences,
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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9. Dynamics of forage accumulation in Elephant grass subjected to rotational grazing intensities
We assessed the accumulation dynamics of forage and its components in Elephant grass cv. Napier (Pennisetum purpureum Schum.) that were subjected to three post-grazing height treatments (30, 50, and 70 cm) from February through May 2009 (experiment one) and December 2009 through May 2010 (experiment two). In experiment one, the grazing events started when th
R. Bras. Zootec.. Publicado em: 2013-09
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10. Tillering dynamics in Guinea grass pastures subjected to management strategies under rotational grazing
This study was carried out to analyze the tillering profile of Guinea grass (Panicum maximum cv. Tanzania) pastures subjected to two grazing frequencies (time necessary to intercept 90 and 95% of the incoming light) and two post-grazing heights (30 and 50 cm) in the period from November 2005 to October 2006. The experimental design was of completely randomiz
R. Bras. Zootec.. Publicado em: 2013-03
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11. Adaptation of the C4 grass Panicum maximum to defoliation is related to plasticity of N uptake, mobilisation and allocation patterns
Dry mass production and persistence of Panicum maximum pastures depends on nitrogen supply. Defoliation influences N uptake and allocation patterns yet its effects on plasticity of N dynamics in P. maximum have not been investigated. Stable isotopes of N (15N) were used in order to test the hypothesis that defoliation in terms of proportion of the leaf area
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-10
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12. Dynamics of production and forage utilization on elephant grass pastures managed with different post-grazing heights
This study was conducted to evaluate the daily production of forage and its morphological components, as well as the potential of forage utilization in pastures of Pennisetum purpureum cv. Napier managed with three post-grazing heights (30, 50 and 70 cm). Two experiments were carried out: one from February to May 2009 and another from December 2009 to May 20
R. Bras. Zootec.. Publicado em: 2012-08