Seasonal variation of soil chemical properties and CO2 and CH4 fluxes in unfertilized and P-fertilized pastures in an Ultisol of the Brazilian Amazon

Fernandes, Silvana Aparecida Pavan; Bernoux, Martial; Cerri, Carlos Clemente; Feigl, Brigitte Josefine; Píccolo, Marisa de Cássia

doi:10.1016/s0016-7061(01)00150-1

Cited by 115 publications

(143 citation statements)

References 40 publications

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“…The soil type was a Haplic Ferralsol according to the World Reference Base classification (FAO, 2006). Our results did not agree with those obtained in these ecosystems (Fernandes et al, 2002;Garcia-Montiel et al, 2004). The difference between our results and others could be explained by differences in temperature variation, soil moisture (precipitation) and also soil variation between these regions and our study area.…”

Section: Methods For Estimating the Mean Sr In The Fieldcontrasting

confidence: 99%

“…Other methods have been used to determine the mean daily SR in field conditions without paying particular attention to the occurrence of rainfall events (Table 2). In pastures, Fernandes et al (2002) measured the SR at 07h00, midday and 17h00 which correspond to the minimum, intermediate and maximum air and soil temperature. In the state of Rondonia, Brazil, the climate was humid tropical, with an annual precipitation of 2,200 mm and a dry season from Jun to Sep annual mean temperature was 25.5 °C with a seasonal variation less than 5 °C.…”

Section: Methods For Estimating the Mean Sr In The Fieldmentioning

confidence: 99%

“…24-h mean, while others use the average of the measurements taken early in the morning (6h00 to 9h00) as the minimum values and the measurements taken at the beginning of the afternoon (14h00 to 15h00) as the maximum values (Larionova et al, 1989;Fernandes et al, 2002;Garcia-Montiel et al, 2004;Wang et al, 2014). In most studies, citations of previous studies that would justify these timeframes are lacking.…”

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confidence: 99%

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24-h variation in soil respiration after a long dry season in a Sudano-Sahelian region

Yemadje

Guibert

Blavet³

et al. 2015

Sci. agric. (Piracicaba, Braz.)

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Soil respiration is a major component of the global carbon cycle which links ecosystems and the atmosphere. To evaluate the reaction of soil respiration after wetting, during a dry period, soil respiration and associated environmental factors were measured over a 24-h period, during the dry season in North Cameroon after wetting the soil. Over 24-h, soil respiration rates followed a quadratic curve during the day coming close to linear at night, while soil temperature and moisture together explained at least 73 % of the variations during the 24-h observed. These soil respiration rates increased during the morning, peaked between 11h00 and 13h00 and then decreased gradually to the minimum around 06h00. These observations were used to propose a method for estimating mean daytime and nighttime soil respiration after wetting the soil. The method proposed in this study has the advantage of being based on a small number of measurements and is, therefore, easier to implement for monitoring 24-h soil respiration after the first rains following a long dry period.

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Section: Methods For Estimating the Mean Sr In The Fieldcontrasting

confidence: 99%

Section: Methods For Estimating the Mean Sr In The Fieldmentioning

confidence: 99%

mentioning

confidence: 99%

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24-h variation in soil respiration after a long dry season in a Sudano-Sahelian region

Yemadje

Guibert

Blavet³

et al. 2015

Sci. agric. (Piracicaba, Braz.)

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“…What's occurring in the pastures at the Amazonia, as well in other tropical regions is the loss of the productive capacity after 4 to 10 years of use due to overgrazing, invasion of unpalatable weed species, loss of soil fertility and cultivation of inadequate grass species (Fernandes et al, 2002). It is estimated that 30 to 50% of pastures in the Brazilian Amazon are in advanced stage of degradation, giving rise to the fallow sites.…”

mentioning

confidence: 99%

Genetic and Functional Diversities of Microbial Communities in Amazonian Soils Under Different Land Uses and Cultivation

Cenciani¹,

Mazzetto²,

Lammel³

et al. 2011

Biomass - Detection, Production and Usage

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“…One alternative additive that can ameliorate the condition of red mud is soil material, and one potential type of soil is Ultisol, which is, coincidentally, found in the vicinity of bauxite mines. Ultisol soil material is highly acidic (Li, Wang, Xu, & Tiwari, 2010), and with very low EC and Na exch rate (Fernandes, Bernoux, Cerri, Feigl, & Piccolo, 2002;Hassan, David, & Abbas, 2014); these are the exact opposite traits of red mud (alkali pH, very high EC and Na exch ) (Chen, Phillips, Wei, & Xu, 2010;R. G. Courtney & Timpson, 2005;Xue et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The Utilization of Red Mud as a Plant Growing Medium with The Addition of Ultisol Soil Material and Compost

Aini

Iskandar

Darmawan

2017

Sains Tanah J. Soil Sci. Agroclimatology

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The utilization of red mud, which is a residue from the extraction of aluminum from mined bauxite ore, as a plant growing medium, needs to be studied further. There are some chemical aspects that may hinder the growth of, or even cause mortality in, plants such as very high pH, electrical conductivity (EC) and exchangeable Na (Na exch ), and very low nutrient elements content. The objective of this study was to investigate the effects of adding Ultisol soil material, mixed with compost, both soil ameliorating agents, to red mud for use as a growing medium for Sengon (Paraserianthes falcataria) seedlings. This study was conducted in two stages, namely: washing of the red mud, and trial planting in the greenhouse using different combinations of the soil ameliorants. Washing of the red mud with tap water was intended to reduce the levels of Na, EC, and pH. Trial planting in the greenhouse was carried out in 2-factorial Completely Randomized Design (CRD). , respectively. The treatment of using a mixture of 750 g red mud + 750 g sm-Ultisol, and adding compost at 117.18 g/polybag gave the best result in improving the chemical property of the red mud growing medium, and producing the best plant growth among all treatment combinations.

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Seasonal variation of soil chemical properties and CO2 and CH4 fluxes in unfertilized and P-fertilized pastures in an Ultisol of the Brazilian Amazon

Cited by 115 publications

References 40 publications

24-h variation in soil respiration after a long dry season in a Sudano-Sahelian region

24-h variation in soil respiration after a long dry season in a Sudano-Sahelian region

Genetic and Functional Diversities of Microbial Communities in Amazonian Soils Under Different Land Uses and Cultivation

The Utilization of Red Mud as a Plant Growing Medium with The Addition of Ultisol Soil Material and Compost

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