Nutrient Input via Incident Rainfall in a Eucalyptus dunnii Stand in the Pampa biome

Dick, Grasiele; Schumacher, Mauro Valdir; Momolli, Dione Richer; Viera, Márcio

doi:10.1590/2179-8087.055916

Cited by 13 publications

(15 citation statements)

References 23 publications

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“…In the present study, there were higher amounts of Cland SO 4 2in rainfall compared to the studies by Heartsill-Scalley et al (2007) in Puerto Rico, Dick et al (2018) in Brazil (Pampa biome), and Ashagrie & Zech (2010) in Ethiopia. The dissolved ions in rainwater will be incorporated into the soil and excess nitrate (Wamelink et al, 2009), chloride, and sulfate may impair the development of vegetation (soybean, corn, pasture, trees, among other types of soil cover) by causing toxic effects and slowing growth (Vet et al, 2014).…”

Section: Increased Concentrations Of Socontrasting

confidence: 66%

“…2and Cl -, in detriment of other ions, were observed in the rainfall of the Pampa biome (Dick et al, 2018) and this has also been observed in studies from Puerto Rico (Heartsill-Scalley et al, 2007), and Congo (Laclau et al, 2003). Laclau et al (2003) identified that the predominance of SO 4 2and Clin rainwater in rural areas of Congo is dependent on the location of the study site as their study was set up 10 km from the sea and under strong influence of marine spray.…”

Section: Increased Concentrations Of Somentioning

confidence: 53%

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Vegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall

Dick

Schumacher

2019

Floresta Ambient.

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Rainfall is one of the primary nutrient inputs to vegetation and its chemical composition is dependent on air quality as falling rain scavenges gaseous and particulate emissions from natural, industrial, and agricultural activities. The objective of this study was to evaluate whether the vegetation burn in a region of the Pampa biome influences the pH and chemical composition (anions) in incident rainfall. Nitrate, sulfate, and chloride concentrations, as well as the pH of the rainwater, were influenced by suspended particles in the atmosphere from biomass burning of native grassland and pasture renewal. The rainwater was acidified by, ash, and soot, which introduced large amounts of chloride and sulfate into the ecosystems caused by burning vegetation.

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Section: Increased Concentrations Of Socontrasting

confidence: 66%

Section: Increased Concentrations Of Somentioning

confidence: 53%

Vegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall

Dick

Schumacher

2019

Floresta Ambient.

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“…Corrêa [15] found 91.6% of throughfall as function to the incident precipitation between 1.4 and 2.4 years of age. Between 4 and 6 years of age, Dick et al [16] found an average throughfall of 91.3%. In the same stand, between 7 and 8 years of age Momolli et al [11] show that the throughfall was smaller when compared to the other studies, being only 90.3%.…”

Section: Distribution Of Incident Precipitation Throughfall Stemflomentioning

confidence: 97%

“…Studying the precipitation partition the seventh to the eighth year, Momolli et al [11] concluded that 99, 90 and 52% of the throughfall, stemflow and canopy interception are explained from the incident precipitation. Monitoring carried out in Eucalyptus dunnii at different ages shows that as the age of stand increases, the percentage of throughfall decreases and the canopy interception increases [15,16,11].…”

Section: Introductionmentioning

confidence: 99%

Linear Regression of Incident Precipitation Explains the Throughfall, Stemflow and Interception by the Eucalyptus Canopy under Different Fertilization Management

Souza

Momolli

Ludvichak

et al. 2019

JEAI

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The present work aims to quantify the precipitation partition after interaction with the Eucalyptus urophylla canopy under two fertilization treatments. The experimental design was completely causalized with two fertilization treatments. Each plot had a dimension of 30 m x 60 m, and the spacing of the seedlings was 3 m x 2 m. The study was developed in a arenizaded area located in the municipality of Maçambará, state of Rio Grande do Sul, Brazil. The duration of the study was one year (from April 2017 to March 2018). Biweekly over twelve months the volume of precipitation was quantified. The experiment consists of two fertilization treatments in a Eucalyptus urophylla stand: T1 with smaller and T2 greater fertilization. In each treatment 3 throughfall collectors were installed at one meter of the soil level and three stemflow collectors. In the open area 3 collectors of the incident precipitation were installed 1.5 meters from the ground level. The percentages of the throughfall, stemflow and canopy interception in relation to the incident precipitation were 95.3; 1.3 and 4.3% for treatment 1 and 91.7; 3.2 and 6.2% for treatment 2. The coefficients of determination for throughfall, stemflow and canopy interception were 0.99; 0.96 and 0.85 for treatment 1 and 0.99; 0.97 and 0.89 for treatment 2. The graphical analysis of the regression residues shows independence of the errors. The fertilization management described for treatment 2 results in a greater interception of rainfall due to the greater amount of biomass of the canopy.

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“…Evaluating the pH in Eucalyptus dunnii stands from 5 to 6 years of age, Dick et al (2018) showed that the pH was 4.3; 5.0 and 5.3 for incident precipitation, throughfall and stemflow respectively. Correa (2011) also studying a stand of Eucalyptus dunnii from 1.4 to 2.4 years of age found the following pH values: 5.0; 5.2 and 5.3 for incident precipitation, throughfall and stemflow respectively.…”

Section: Concentration Of Ionsmentioning

confidence: 99%

Incident Precipitation Partitioning: The Canopy Interactions Enrich Water Solution With Nutrients in Throughfall and Stemflow

Momolli¹,

Schumacher²,

Viera³

et al. 2019

JAS

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Atmospheric deposition is responsible for the ions input, which may be due to dust and aerosols and rainfall. During rainfall a portion is intercepted by the tree canopy and returned to the atmosphere by evapotranspiration, another part crosses the forest canopy called throughfall and stemflow. The objective of the present work was to quantify the nutrient input of the incident rainfall, throughfall, stemflow and canopy enrichment in an Eucalyptus dunnii plantation, established in soil with low natural fertility. Four plots of 20 m × 21 m were demarcated. The rainfall consists 3 rain collectors in an open área. The throughfall consisted 3 collectors per plot in the line, interlining and diagonal positions of the trees. The stemflow consisted in the installation of three systems per plot formed by a hose in the trunk of the tree that leads the solution to a reservoir. Through rainfall, 29.5 kg ha-1 of nutrients were supplied. When we consider the sum of the throughfall and stemflow, the amount of nutrients was 77.6 kg ha-1. After interaction with the tree canopy 48.2 kg ha-1 of nutrients were incorporated. Potassium showed the highest enrichment: 607%. The average nutrient enrichment was 163%. The input of N and K via incident rainfall was 1.8 and 3.1 kg ha-1. Considering the fertilization described in the methodology, this contributed amount represents 6.1 and 2.6% of the total. If we consider the rotation of 7 years for Eucalyptus dunnii, the contribution at the end of rotation represents 42.4 and 18% of N and K2O. The interaction with the canopy of Eucalyptus dunnii enriches the rainwater with nutrients making the solution with a more basic character.

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Nutrient Input via Incident Rainfall in a Eucalyptus dunnii Stand in the Pampa biome

Abstract: We evaluated the nutrient input via incident rainfall in a Eucalyptus dunnii stand in the Brazilian Pampa biome. During the two-year study, we analyzed nutrient concentrations in incident rainfall (P), throughfall via drip (Pi), and stemflow (Et

Cited by 13 publications

References 23 publications

Vegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall

Vegetation Burning in Pampa Biome Altered the Chemical Composition of Rainfall

Linear Regression of Incident Precipitation Explains the Throughfall, Stemflow and Interception by the Eucalyptus Canopy under Different Fertilization Management

Incident Precipitation Partitioning: The Canopy Interactions Enrich Water Solution With Nutrients in Throughfall and Stemflow

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