Water Erosion on an Oxisol under Integrated Crop-Forest Systems in a Transitional Area between the Amazon and Cerrado Biomes

Rieger, Fernando Alexandre; Zolin, Cornélio Alberto; Paulino, Janaína; Souza, Adilson Pacheco de; Matos, Eduardo da Silva; Magalhães, Ciro Augusto de Souza; Neto, A. L. de Farias

doi:10.1590/18069657rbcs20150111

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…As queimadas, quando com frequência, deixam o solo exposto aumentando a erosão. A queima dos resíduos vegetais diminui a matéria orgânica do solo, enfraquece a sua estrutura e, com isso, aumenta a susceptibilidade à erosão (BERTOL et al, 2004).…”

Section: Introductionunclassified

Influência do uso do solo na taxa de infiltração da água na Bacia Hidrográfica dos Igarapés 54 E 7, Paragominas/PA

Galvão

2020

RHE

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A infiltração é o fenômeno em que a água penetra no perfil do solo devido a este meio ser permoporoso, ou por capilaridade em solos pouco permeáveis. Se a percolação for mais profunda, a água contribuirá com a recarga do aquífero local. A taxa de infiltração pode ser diferente a depender do tipo e do uso e ocupação do solo, da cobertura vegetal (ou ausência dela) ou do grau de compactação do terreno (natural ou antropicamente induzido). O município de Paragominas, sudoeste do Pará, possui locais em que a combinação de diferentes tipos de solo, cobertura vegetal, manejo e de manutenção da mata ciliar podem resultar em diferentes taxas de infiltração da água, afetando na recarga dos aquíferos locais. A pesquisa avaliou possíveis mudanças nas taxas de infiltração de água em áreas de mata ciliar, pastagem e agricultura no igarapé 54 e no igarapé 7 e as comparou com os períodos seco e chuvoso. Parâmetros como granulometrias e teores de umidade de cada solo foram igualmente avaliados. Constatou-se uma estreita relação entre taxa de infiltração, teor de umidade, textura e tipo de manejo do solo. Em mata ciliar, o caráter argiloso do terreno e o papel da vegetação foram determinantes no baixo valor de infiltração; em pastagem, houve valores distintos de infiltração entre a seca e a chuva devido à baixa capacidade de retenção de umidade na camada superficial do solo, além da compactação devido ao pisoteio do gado; na área de agricultura (apenas no igarapé 54) houve um comportamento próximo nas duas estações, com a taxa de infiltração estabilizando aos 60 minutos.

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Section: Introductionunclassified

Influência do uso do solo na taxa de infiltração da água na Bacia Hidrográfica dos Igarapés 54 E 7, Paragominas/PA

Galvão

2020

RHE

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“…Furthermore, it is estimated that up to 5 million hectares will be degraded globally by soil erosion [3]. On the other hand, agroforestry production is increasing in the Cerrado [15,16], which is a global biodiversity hotspot contributing 43% of Brazil's surface water outside of the Amazon [17]. Thus, it is of strategic importance to understand the impact of agricultural production on soil erosion rates [18] and water balance [19].…”

Section: Introductionmentioning

confidence: 99%

Effects of Long-Term Crop-Livestock-Forestry Systems on Soil Erosion and Water Infiltration in a Brazilian Cerrado Site

et al. 2019

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Integrating agricultural land uses is a suitable alternative for fostering economic development and improving food security. However, the effects of long-term integrated systems on soil erosion and water infiltration are still poorly understood. Here, we investigate the influence of different agricultural land uses on soil erosion and water infiltration in an Oxisol site located in the Brazilian Cerrado region. The experimental area consisted of continuous grazing under variable stocking rates with regular fertilization (CG-RF), continuous cropping under no-till (CC-NT) and no-till with 4-year subsoiling (CC-SS), rotation of one year cropping and three years livestock in the livestock phase (C1-L3), rotation of four years cropping and four years livestock in the cropping phase (CL-4C) and in the livestock phase (CL-4L), and integrated crop-livestock-forestry in the cropping phase (CLF-C) and in the livestock phase (CLF-L). To evaluate water infiltration and soil loss, we used a rainfall simulator with a constant rainfall intensity of 74.9 ± 3.6 mm h−1 in plots of 0.7 m2. We carried out 72 rainfall simulations comprising four repetitions in each treatment under vegetation and bare soil. Stable infiltration rate (SIR) ranged from 45.9 to 74.8 mm h−1 and 19.4 to 70.8 mm h−1 under vegetation covers and bare soil, respectively. Our findings indicated that SIR values under CLF-C were 60% greater than under CG-RF. We also found that soil loss rates under CLF-C were 50% smaller than under CG-RF. The crop–livestock rotation period that presented better results of SIR and soil loss was one year of cropping and three years of livestock (C1-L3). Overall, we noted that SIR and soil loss values under CLF-C are similar to the Cerrado native vegetation. Therefore, our study reveals the opportunity to increase agricultural production, improve food supply, and reduce soil erosion with adequate soil and agricultural management.

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“…One effective conservation practice is intercropping, which involves cover plants and crop systems, by including two or more crops with different architectures and vegetative cycles growing simultaneously. Intercropping is a very common practice in tropical areas, and some of the benefits from this practice include improvement in soil and water quality, increased nutrient fixation and cycling efficiency, and better protection against the impact of raindrops and consequent soil erosion by water (Troeh et al, 1980;Connolly et al, 2001;Snapp et al, 2005;Gómez et al, 2009;Maetens et al, 2012;Chieza et al, 2013;Rieger et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Relationship Among Crop Systems, Soil Cover, and Water Erosion on a Typic Hapludox

Lima

Silva

Quinton

et al. 2018

Rev. Bras. Ciênc. Solo

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Several soil conservation practices are used to reduce water erosion and ensure sustainable agriculture. An effective crop management practice is intercropping, in which two or more crops with different architectures and vegetative cycles are grown simultaneously in the same area. We hypothesized that intercropping of corn and jack-bean increases soil cover and reduce soil erosion by water in comparison to monocropping. The objective of this study was to evaluate the effects of different crop systems on soil cover and on soil erosion by water. Soil and water losses from a Typic Hapludox were measured under the following systems: corn cultivation (CO), jack-bean cultivation (JB), intercropping of corn and jack-bean (IC), and bare soil (BS), as a reference for maximum erosion rates. For each crop system, erosion plots with dimensions of 12 × 4 m were set up in the field on a 0.12 m m -1 slope gradient. The experiment was carried out under natural rainfall, over three crop seasons (November to March) from 2011 to 2014. The soil cover index of the systems was monitored during crop growth, and rainfall erosivity for the crop seasons was calculated according to the EI 30 index to interpret soil and water losses. A set of linear mixed models was fitted to relate soil losses to rainfall erosivity, crop systems, and soil cover. The average rainfall erosivity in the study area was 6,132 MJ mm ha -1 h -1 per crop season. The results indicate that water losses are directly related to erosivity and are less influenced by soil cover and cultivation systems than the soil losses. A linear maximum value of the soil cover index was achieved 70 days after sowing. Intercropping exhibited greater soil cover than single crops. Total soil losses from the three seasons display the trend: BS > CO > JB > IC. The best fitted model of the linear mixed models indicates that soil loss responses are strongly correlated with rainfall erosivity and soil cover, which nullified the influence of the crop systems in the model.

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Water Erosion on an Oxisol under Integrated Crop-Forest Systems in a Transitional Area between the Amazon and Cerrado Biomes

Cited by 13 publications

References 24 publications

Influência do uso do solo na taxa de infiltração da água na Bacia Hidrográfica dos Igarapés 54 E 7, Paragominas/PA

Influência do uso do solo na taxa de infiltração da água na Bacia Hidrográfica dos Igarapés 54 E 7, Paragominas/PA

Effects of Long-Term Crop-Livestock-Forestry Systems on Soil Erosion and Water Infiltration in a Brazilian Cerrado Site

Relationship Among Crop Systems, Soil Cover, and Water Erosion on a Typic Hapludox

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