scholarly journals PERDAS DE SOLO E DE ÁGUA EM DIFERENTES SISTEMAS DE MANEJO EM LATOSSOLO VERMELHO

Nativa ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 64
Author(s):  
Stanley Vaz dos Santos ◽  
Eva De Melo Ferreira ◽  
Nori Paulo Griebeler ◽  
Wilson Mozena Leandro
Keyword(s):  
Soil Loss ◽  
Management Systems ◽  
No Tillage ◽  
Conventional System ◽  
Water Losses ◽  
Erosion Models ◽  
Tillage System ◽  
Second Year ◽  
Soil Losses ◽  
Soil And Water

O objetivo foi comparar as perdas de água e solo em diferentes sistemas de manejo, bem como determinar parâmetros de clima e de solo que possam estar associados a essas perdas e estimar perdas de solo por meio de modelos matemáticos. A área experimental consiste em 10 parcelas de 20 m2 (10 × 2 m), das quais nove foram trabalhadas inicialmente no sistema de plantio direto (SPD) e uma utilizada no sistema convencional (CO). Nestes moldes foram quantificadas as perdas de solo e água em diferentes safras. No final do segundo ano, das parcelas com SPD, cinco foram mantidas neste sistema, duas foram revolvidas na profundidade de 25 cm e reiniciadas no SPD e, em duas foi utilizado o sistema CO. Antes da utilização como sistema convencional, a parcela CO possuía plantio direto. Nas três safras estudadas o percentual infiltrado foi superior a 93% para o SPD e a 71% para o CO, considerando apenas as chuvas que propiciaram escoamento. As médias das perdas de solo na segunda safra foram de 2,27; 2,51; 14.61; e 14,79 t ha-1 e, de água, de 3,07; 5,51; 14,04; e 10,80 %, respectivamente para os sistemas de manejo SPD, CO e PDI.Palavras-chave: erosão hídrica, modelos de predição, erosividade. SOIL AND WATER LOSSES IN DIFFERENT MANAGEMENT SYSTEMS IN LATOSSOLOVERMELHO ABSTRACT: The objective was to compare soil and water losses in different management systems, as well as determine soil and climate parameters that could be associated with these losses and estimate soil losses through mathematical models. The experimental area consists of 10 plots of 20 m2 (10 × 2 m), of which nine were initially worked in the no-tillage system (SPD) and one in the conventional system (CO). Soils and water losses in different crops were quantified in these models. At the end of the second year, of the plots with SPD, five were kept in this system, two were revolved at 25 cm depth and restarted in the SPD and in two the CO system was used. Prior to use as a conventional system, the CO plot had no-tillage. In the three harvests studied, the percentage infiltrated was greater than 93% for the SPD and 71% for the CO, considering only the rains that caused the runoff. The average soil loss in the second harvest was 2.27; 2.51; 14.61; and 14.79 t ha-1 and, by water, 3.07; 5.51; 14.04; and 10.80%, respectively for the SPD, CO and PDI management systems.Keywords: hydric erosion, models of prediction, erosivity.

scholarly journals Soil and Water Loss Rates in Oxisols Under No-tillage System in Western Paraná, Brazil

2018 ◽  
Vol 10 (10) ◽  
pp. 132
Author(s):  
Luana Salete Celante ◽  
Deonir Secco ◽  
Aracéli Ciotti de Marins ◽  
Daniela Trentin Nava ◽  
Flávio Gurgacz ◽  
...  
Keyword(s):  
Water Loss ◽  
Soil Loss ◽  
No Tillage ◽  
Linear Regression Models ◽  
Water Losses ◽  
Soil And Water Loss ◽  
Tillage System ◽  
Soil Losses ◽  
Soil And Water ◽  
Loss Rates

The objective of work was to quantify soil and water loss rates as a function of slope variation, correlating these rates with soybean yield. In addition to developing multiple linear regression models that associate water and soil loss rates in function of their physical attributes. The experiment was conducted in an Oxisols under a no-tillage system. The experiment was carried out in Cascavel, PR, Brazil. Four slopes (3.5%; 8.2%; 11.4% and 13.5%) were considered as treatments. The water and soil loss rates were monitored in the rainfall occurring during the crop development cycle. The water drained in each plot was collected in gutters made of polyvinyl chloride and stored in containers for the quantification of soil and water losses. The stepwise backward method was used to identify the variables that had a significant influence on water and soil losses. The unevenness of the terrain did not influence the soil and water loss rates. The maximum soil and water losses during the soybean cycle were, respectively, 0.01962 Mg ha-1 and 4.07 m3 ha-1. The maximum soil and water losses occurred when the precipitation volume was up to 82 mm. Soil and water losses showed a higher correlation with macroporosity and bulk density. Soybean grain yield showed a higher linear correlation with water, and soil loss and was higher at the slopes of 8.2% and 13.4%. The low water and soil losses demonstrate the soil capacity, managed under a no-tillage system, to minimize environmental impacts.

scholarly journals Temporal changes in soil water erosion on sloping vineyards in the Ruwer- Mosel Valley. The impact of age and plantation works in young and old vines

2017 ◽  
Vol 65 (4) ◽  
pp. 402-409 ◽  
Author(s):  
Jesús Rodrigo-Comino ◽  
Christine Brings ◽  
Thomas Iserloh ◽  
Markus C. Casper ◽  
Manuel Seeger ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Sustainable Management ◽  
Soil Loss ◽  
Overland Flow ◽  
Water Erosion ◽  
Management Systems ◽  
Water Losses ◽  
The Impact ◽  
Effect Of Age ◽  
Soil And Water

AbstractIt is well known that rainfall causes soil erosion in sloping German vineyards, but little is known about the effect of age of plantation on soil erosion, which is relevant to understand and design sustainable management systems. In the Ruwer-Mosel valley, young (1- to 4-years) and old (35- to 38-years after the plantation) vineyards were selected to assess soil and water losses by using two-paired Gerlach troughs over three years (2013-2015). In the young vineyard, the overland flow was 107 L m-1and soil loss 1000 g m-1in the year of the plantation, and decreased drastically over the two subsequent years (19 L m-1; 428 g m-1). In the old vineyard, soil (from 1081 g m-1to 1308 g m-1) and water (from 67 L m-1to 102 L m-1) losses were 1.2 and 1.63 times higher, respectively, than in the young vineyard.

scholarly journals Vicia sativa Roth. Can Reduce Soil and Water Losses in Recently Planted Vineyards (Vitis vinifera L.)

2020 ◽  
Vol 4 (4) ◽  
pp. 827-842
Author(s):  
Jesús Rodrigo-Comino ◽  
Enric Terol ◽  
Gaspar Mora ◽  
Antonio Giménez-Morera ◽  
Artemi Cerdà
Keyword(s):  
Soil Erosion ◽  
Bulk Density ◽  
Soil Loss ◽  
Sediment Concentration ◽  
Soil Bulk Density ◽  
Vicia Sativa ◽  
Water Losses ◽  
Soil Erosion Control ◽  
Soil Losses ◽  
Soil And Water

AbstractElevated soil loss and runoff rates can reduce soil fertility; therefore, soil erosion control strategies must be implemented at the hillslope and watershed scale when plantations are established and the soil is bare. In this research, we propose the use of the Vicia sativa Roth. to reduce the soil losses during the first year to control the peak of soil erosion after the plantation in tilled vineyards. To test its efficiency, rainfall simulation experiments were carried out with field surveys in The Casa Pago Gran, in the Eastern Iberian Peninsula. Our results demonstrate that soil properties (organic matter and soil bulk density) and soil erosion (soil loss, runoff and sediment concentration) were significantly different between the control plot (tilled) and with cover crops along with August 2016, 2017 and 2018 measurement periods, but not during January 2016, coinciding with the initial survey before the vetch sown. Runoff initiation was delayed in 3.7 times after 3 years (from 190 till 709 s). The runoff discharge was reduced by the Vicia sativa from 32.87 till 13.68%, the sediment concentration went down from 18.54 till 3.81 gr l−1 and the soil erosion from 3.36 to 0.29 Mg ha−1 year−1. An increase in soil bulk density was registered but did not affect the runoff generation either the soil losses, that was reduced by the plant cover. We conclude that it is necessary to include soil erosion control measures such as the use of Vicia sativa to reduce soil erosion processes during the first stages of the vineyard plantations due to the soil quality improvements and the reduction in soil and water losses.

scholarly journals Quality No-tillage System: The Importance of the Use of Cover Species in Reducing Compaction and Soil and Water Losses Due to Erosion

2019 ◽  
Vol 11 (2) ◽  
pp. 263
Author(s):  
Bruna de Villa ◽  
Deonir Secco ◽  
Luciene Kazue Tokura ◽  
Aracéli Ciotti de Marins ◽  
Pablo Chang ◽  
...  
Keyword(s):  
Surface Runoff ◽  
Soil Structure ◽  
Rainfall Intensity ◽  
Quality Management System ◽  
Water Infiltration ◽  
Effective Control ◽  
No Tillage ◽  
Water Losses ◽  
Tillage System ◽  
Soil And Water

Water and soil losses due to surface runoff depend on rainfall intensity and periods, vegetation cover, slope, and ramp length, in addition to conservation practices. The implementation of a quality planting system for the effective control of erosion while avoiding the disintegration of the soil structure by the direct impact of dropping is of paramount importance. Nevertheless, the current no-tillage system has led to the emergence of compacted layers in the soil, which reduce water infiltration, favoring surface runoff. Thus, it is necessary to optimize the use of soil cover species, aiming at reducing compaction and, subsequently, losses of water and soil that flow superficially. The purpose of this study is to highlight the importance of using a quality management system to reduce soil and water losses due to erosion caused by compaction. Furthermore, it is hoped that the study may contribute to the guidance of the best use and management of the soil for farmers.

scholarly journals Relations between soil surface roughness, tortuosity, tillage treatments, rainfall intensity and soil and water losses from a red yellow latosol

2012 ◽  
Vol 36 (4) ◽  
pp. 1291-1298 ◽  
Author(s):  
Julieta Bramorski ◽  
Isabella C. De Maria ◽  
Renato Lemos e Silva ◽  
Silvio Crestana
Keyword(s):  
Surface Roughness ◽  
Water Retention ◽  
Soil Surface ◽  
No Tillage ◽  
Water Losses ◽  
Slope Length ◽  
Tillage Practices ◽  
Soil Surface Roughness ◽  
Tillage System ◽  
Soil And Water

The soil surface roughness increases water retention and infiltration, reduces the runoff volume and speed and influences soil losses by water erosion. Similarly to other parameters, soil roughness is affected by the tillage system and rainfall volume. Based on these assumptions, the main purpose of this study was to evaluate the effect of tillage treatments on soil surface roughness (RR) and tortuosity (T) and to investigate the relationship with soil and water losses in a series of simulated rainfall events. The field study was carried out at the experimental station of EMBRAPA Southeastern Cattle Research Center in São Carlos (Fazenda Canchim), in São Paulo State, Brazil. Experimental plots of 33 m² were treated with two tillage practices in three replications, consisting of: untilled (no-tillage) soil (NTS) and conventionally tilled (plowing plus double disking) soil (CTS). Three successive simulated rain tests were applied in 24 h intervals. The three tests consisted of a first rain of 30 mm/h, a second of 30 mm/h and a third rain of 70 mm/h. Immediately after tilling and each rain simulation test, the surface roughness was measured, using a laser profile meter. The tillage treatments induced significant changes in soil surface roughness and tortuosity, demonstrating the importance of the tillage system for the physical surface conditions, favoring water retention and infiltration in the soil. The increase in surface roughness by the tillage treatments was considerably greater than its reduction by rain action. The surface roughness and tortuosity had more influence on the soil volume lost by surface runoff than in the conventional treatment. Possibly, other variables influenced soil and water losses from the no-tillage treatments, e.g., soil type, declivity, slope length, among others not analyzed in this study.

scholarly journals Impact of Farmland Abandonment on Water Resources and Soil Conservation in Citrus Plantations in Eastern Spain

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 824 ◽  
Author(s):  
Artemi Cerdà ◽  
Oren Ackermann ◽  
Enric Terol ◽  
Jesús Rodrigo-Comino
Keyword(s):  
Water Resources ◽  
Plant Cover ◽  
Land Abandonment ◽  
Rainfall Simulation ◽  
Runoff Generation ◽  
Farmland Abandonment ◽  
Water Losses ◽  
Erosion Rates ◽  
Soil Losses ◽  
Soil And Water

Due to the reduction in the prices of oranges on the market and social changes such as the ageing of the population, traditional orange plantation abandonment in the Mediterranean is taking place. Previous research on land abandonment impact on soil and water resources has focused on rainfed agriculture abandonment, but there is no research on irrigated land abandonment. In the Valencia Region—the largest producer of oranges in Europe—abandonment is resulting in a quick vegetation recovery and changes in soil properties, and then in water erosion. Therefore, we performed rainfall simulation experiments (0.28 m2; 38.8 mm h−1) to determine the soil losses in naveline orange plantations with different ages of abandonment (1, 2, 3, 5, 7 and 10 years of abandonment) which will allow for an understanding of the temporal changes in soil and water losses after abandonment. Moreover, these results were also compared with an active plantation (0). The results show that the soils of the active orange plantations have higher runoff discharges and higher erosion rates due to the use of herbicides than the plots after abandonment. Once the soil is abandoned for one year, the plant recovery reaches 33% of the cover and the erosion rate drops one order of magnitude. This is related to the delay in the runoff generation and the increase in infiltration rates. After 2, 3, 5, 7 and 10 years, the soil reduced bulk density, increase in organic matter, plant cover, and soil erosion rates were found negligible. We conclude that the abandonment of orange plantations reduces soil and water losses and can serve as a nature-based solution to restore the soil services, goods, and resources. The reduction in the soil losses was exponential (from 607.4 g m−2 in the active plot to 7.1 g m−2 in the 10-year abandoned one) but the water losses were linear (from 77.2 in active plantations till 12.8% in the 10-year abandoned ones).

scholarly journals Effects of soil management systems on soil microbial activity, bulk density and chemical properties

2001 ◽  
Vol 36 (12) ◽  
pp. 1539-1545 ◽  
Author(s):  
Maria Alexandra Reis Valpassos ◽  
Eloiza Gomes Silva Cavalcante ◽  
Ana Maria Rodrigues Cassiolato ◽  
Marlene Cristina Alves
Keyword(s):  
Bulk Density ◽  
Chemical Properties ◽  
Soil Management ◽  
Soil Microbial Activity ◽  
Management Systems ◽  
No Tillage ◽  
Soil Microbial ◽  
Tillage System ◽  
Crop Sequence ◽  
And Chemical Properties

The objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration, therefore displaying evident long-term effects on the increase of soil C content. The no-tillage system also provided an improvement in bulk density and chemical properties of the soil. Hence, the no-tillage management system could be an alternative for the conservation and maintenance of physical and chemical conditions and the productive potential of "cerrado" soils.

scholarly journals Soil loss by water erosion in areas under maize and jack beans intercropped and monocultures

2014 ◽  
Vol 38 (2) ◽  
pp. 129-139 ◽  
Author(s):  
Pedro Luiz Terra Lima ◽  
Marx Leandro Naves Silva ◽  
Nilton Curi ◽  
John Quinton
Keyword(s):  
Soil Erosion ◽  
Soil Loss ◽  
Soil Management ◽  
Bare Soil ◽  
Water Erosion ◽  
Management Systems ◽  
Water Runoff ◽  
Jack Bean ◽  
Favorable Conditions ◽  
Soil Losses

Adequate soil management can create favorable conditions to reduce erosion and water runoff, consequently increase water soil recharge. Among management systems intercropping is highly used, especially for medium and small farmers. It is a system where two or more crops with different architectures and vegetative cycles are explored simultaneously at the same location. This research investigated the effects of maize intercropped with jack bean on soil losses due to water erosion, estimate C factor of Universal Soil Losses Equation (USLE) and how it can be affected by soil coverage. The results obtained also contribute to database generation, important to model and estimate soil erosion. Total soil loss by erosion caused by natural rain, at Lavras, Minas Gerais, Brazil, were: 4.20, 1.86, 1.38 and 1.14 Mg ha-1, respectively, for bare soil, maize, jack bean and the intercropping of both species, during evaluated period. Values of C factor of USLE were: 0.039, 0.054 and 0.077 Mg ha Mg-1 ha-1 for maize, jack bean and intercropping between both crops, respectively. Maize presented lower vegetation cover index, followed by jack beans and consortium of the studied species. Intercropping between species showed greater potential on soil erosion control, since its cultivation resulted in lower soil losses than single crops cultivation, and this aspect is really important for small and medium farmers in the studied region.

scholarly journals Farm systems, soil chemical properties, and clay dispersion in watershed áreas

2020 ◽  
Vol 55 ◽  
Author(s):  
Amanda Letícia Pit Nunes ◽  
Glassys Louise de Souza Cortez ◽  
Thadeu Rodrigues Melo ◽  
Alex Figueiredo ◽  
Cassio Alexandre Rolan Wandscheer ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Depth ◽  
Chemical Properties ◽  
Soil Disturbance ◽  
Soil Chemical Properties ◽  
No Tillage ◽  
Conventional System ◽  
Clay Dispersion ◽  
Farm Systems ◽  
Tillage System

Abstract: The objective of this work was to evaluate the effect of different farm systems on clay dispersion and its relationship with soil chemical properties and the no-tillage system participatory quality index (IQP), in watershed areas in the west of the state of Paraná, Brazil. The farm systems evaluated were: no-tillage; no-tillage with crop succession; no-tillage with soil disturbance; and conventional system. In addition, the farm systems were evaluated for their IQP. Soil samples were collected at 0.0-0.20-m soil depth, in 40 agricultural areas and in 6 native forests considered as references. The degree of clay dispersion, total organic carbon, pH (CaCl2), exchangeable potassium (K+), available phosphorus (P), exchangeable calcium and magnesium (Ca2++Mg2+), and potential acidity (H+Al3+) were determined. A linear multiple regression model was fitted by the method of least squares. The averages of clay dispersion degree per watershed were compared at 5% probability. The farm systems were compared by Scott-Knott’s test. Soil chemical properties showed a higher influence on clay dispersion than the different farm systems assessed. The no-tillage system alone showed the highest content of organic carbon, which was similar to those of the native areas. The conventional system and the no-tillage system with soil disturbance showed a lower IQP and a higher degree of clay dispersion than the areas with the no-tillage system alone. The IQP allows distinguishing the conventional system from the no-tillage system.

scholarly journals Carbon stocks in organic matter fractions as affected by land use and soil management, with emphasis on no-tillage effect

2002 ◽  
Vol 32 (3) ◽  
pp. 401-406 ◽  
Author(s):  
Cimélio Bayer ◽  
Deborah Pinheiro Dick ◽  
Genicelli Mafra Ribeiro ◽  
Klaus Konrad Scheuermann
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Management ◽  
Conventional Tillage ◽  
Management Systems ◽  
Forest Site ◽  
No Tillage ◽  
C Stocks ◽  
Tillage System ◽  
Organic Matter Fractions

Land use and soil management may affect both labile and humified soil organic matter (SOM) fractions, but the magnitude of these changes is poorly known in subtropical environments. This study investigated effects of four land use and soil management systems (forest, native pasture, and conventional tillage and no-tillage in a wheat/soybean succession) on (i) total soil organic carbon (SOC) stocks (0 to 250mm depth) and on (ii) carbon (C) stocks in labile (coarse, light) and humified (mineral-associated, humic substances) SOM fractions (0 to 25mm depth), in a Hapludox soil from southern Brazil. In comparison to the adjacent forest site, conventionally tilled soil presented 36% (46.2Mg ha-1) less SOC in the 0 to 250mm depth and a widespread decrease in C stocks in all SOM fractions in the 0 to 25mm depth. The coarse (>53 mum) and light (<1kg dm-3) SOM fractions were the most affected under no-tillage, showing 393% (1.22Mg C ha-1) and 289% (0.55Mg C ha-1) increases, respectively, in relation to conventional tillage. Similar results were observed for mineral-associated SOM and humic substance C pools (34% and 38% increases, respectively) under no-tillage. Compared with labile SOM fraction results, the percentual increments on C stocks in humified fractions were smaller; but in absolute terms this C pool yielded the highest increases (3.06 and 2.95Mg C ha-1, respectively). These results showed that both labile and humified organic matter are better protected under the no-tillage system, and consequently less vulnerable to mineralization. Humified SOM stabilization process involving interactions with variable charge minerals is probably important in maintaining and restoring soil and environmental quality in tropical and subtropical regions.

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