Soil Losses in Agricultural Area of the Semi-Arid

Abstract

Soil losses caused by erosion are a worldwide problem that brings significant environmental and economic impacts and reduces arable land. Soil conservation practices are efficient alternatives to reduce erosion and maintain crop productivity. The objective was to compare soil losses by water erosion in different agricultural managements in a rural community in the semi-arid region of Ceará. The design used was completely randomized with a factorial scheme (Treatment x period), consisting of four treatments: CNCP - Graviola planting in contour lines associated with stone strings; MACV - Graviola planting downhill, keeping the ground cover; CN - Graviola planting in a contour curve and MASV - Graviola planting downhill, without ground cover, with the period represented by the dates of collection of variables. The height and diameter of soursop trees were analyzed; soil moisture; precipitation and slope. The CNCP conservation management provided the lowest soil losses, while the MASV the highest losses, suggesting that the implementation of conservation practices in semi-arid agriculture reduces soil losses from water erosion and contributes to the sustainability of agricultural production in areas rural areas in the semi-arid region of Ceará. Keywords: Water Erosion, Runoff, Soil Degradation, Soil Conservation Practices.

Morfodinâmica e risco de erosão no alto curso do Rio Curimataú (PB): uma análise a partir de técnicas de monitoramento da perda de solo

“…Os "gatilhos", como denominam Girão e Santos (2020), que corresponde a baixa intensidade de chuvas e sua concentração em determinados meses do ano, os solos suscetíveis, o desmatamento da vegetação da caatinga a partir das práticas de uso da terra de maneira incorreta resultam no favorecimento da ocorrência da erosão nesse ambiente. Desse modo, o semiário também demonstra uma vulnerabilidade a perda de solo, conforme dissertam Souza, Souza e Sousa (2021), Sousa e Paula (2019), Sobrinho e Barbosa (2022) e Queiroz (2022).…”