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The impact of plans, policies, practices and technologies based on the principles of conservation agriculture in the control of soil erosion in Brazil
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  • JOSÉ CARLOS POLIDORO,
  • PEDRO LUIZ DE FREITAS,
  • LUIS CARLOS HERNANI,
  • LÚCIA HELENA CUNHA DOS ANJOS,
  • RENATO DE ARAGÃO RIBEIRO RODRIGUES,
  • FERNANDO VIEIRA CESÁRIO,
  • ALUÍSIO GRANATO DE ANDRADE,
  • JEFÉ LEÃO RIBEIRO
JOSÉ CARLOS POLIDORO
Brazilian Agricultural Research Corporation
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PEDRO LUIZ DE FREITAS
Brazilian Agricultural Research Corporation
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LUIS CARLOS HERNANI
Brazilian Agricultural Research Corporation
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LÚCIA HELENA CUNHA DOS ANJOS
Rural Federal University of Rio de Janeiro Institute of Agronomy
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RENATO DE ARAGÃO RIBEIRO RODRIGUES
Brazilian Agricultural Research Corporation
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FERNANDO VIEIRA CESÁRIO
Federal Fluminense University
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ALUÍSIO GRANATO DE ANDRADE
Brazilian Agricultural Research Corporation
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JEFÉ LEÃO RIBEIRO
Ministry of Agriculture, Livestock and Food Supply
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Abstract

Land use surveys show 30.5% of Brazil´s territory is dedicated to production of food, fibers, biofuels and raw materials; however, soil erosion is the main agent of land degradation and productivity decreasing. This paper reports the impacts of the adoption of conservation agriculture (CA) principles in controlling soil loss by water erosion, where Zero Tillage (ZT) and integrated Crop-Livestock-Forest (iCLF) management systems are the central policies. Annual soil loss potential, estimated for a scenery lacking CA practices, intensive conventional tillage and monoculture, is of 3.0 billion tons, with 29.5% of losses in croplands and 61.4% in rangelands. The economic impact of soil erosion based only on nutrient losses is estimated in 15.7 billion US dollars. Efforts to control water erosion, intensify agricultural production and mitigate the emission of greenhouse gases are the goal of a recent national governmental program for detailed soil survey and interpretation for land use - PronaSolos. Practices and technologies based on CA, such as ZT and iCLF, already adopted in 44.4 million hectares, with an economic impact of 2.3 billion US dollars, will be recommended to reach 60 million ha by the year 2025. Other benefits are maintenance of rural roads, reduction of soil and water pollution, increase of water quality and storage capacity of reservoirs. The success of the program and current achievements with CA in Brazil result from determination of farmers and many actors involved in controlling soil erosion; as well as plans and policies to implement practices and technologies based on CA principles.

Peer review status:ACCEPTED

17 Apr 2020Submitted to Land Degradation & Development
21 Apr 2020Submission Checks Completed
21 Apr 2020Assigned to Editor
23 Apr 2020Reviewer(s) Assigned
26 May 2020Review(s) Completed, Editorial Evaluation Pending
01 Jun 2020Editorial Decision: Revise Major
01 Jul 20201st Revision Received
06 Jul 2020Assigned to Editor
06 Jul 2020Submission Checks Completed
20 Jul 2020Review(s) Completed, Editorial Evaluation Pending
05 Sep 2020Editorial Decision: Revise Minor
05 Oct 20202nd Revision Received
06 Oct 2020Submission Checks Completed
06 Oct 2020Assigned to Editor
07 Oct 2020Review(s) Completed, Editorial Evaluation Pending
10 Oct 2020Editorial Decision: Revise Minor
09 Nov 20203rd Revision Received
10 Nov 2020Submission Checks Completed
10 Nov 2020Assigned to Editor
13 Nov 2020Review(s) Completed, Editorial Evaluation Pending
14 Nov 2020Editorial Decision: Accept