Asian Journal of Plant and Soil Sciences
 

Asian Journal of Plant and Soil Sciences, ISSN No. : ., Vol.: 2, Issue.: 1

Original Research Article

AGROFORESTRY SYSTEMS AS CONDITIONERS OF PHYSICAL AND STRUCTURAL QUALITY OF THE SOIL

 

REGINALDO BARBOSA DA SILVA1*, CAMILA CASSANTE DE LIMA2, FRANCISCA ALCIVÂNIA DE MELO SILVA1, PIERO IORI1 AND GLÁUCIA MARIA PEREIRA PAVARINI1

1Universidade Estadual Paulista, Câmpus Experimental de Registro, Street Nelson Brihi Badur nº 430, CEP: 11900-000, Registro, SP, Brazil.

2Universidade de São Paulo - ESALQ, Avenue Pádua Dias nº 11, Agronomia CEP: 13418-900, Piracicaba, SP, Brazil.

Abstracts

The study of transformations that occur in the soil, resulting from the use and management adopted, is very important in the choice of the most suitable system to recover the soil functions. Thus, the aim of this study was to assess the impact of agroforestry systems (AFS´s) management, in different successional stages, on soil physical quality in south of São Paulo state (Brazil). The work was conducted under an Ultisol (Arenic Dystrudult). It was evaluated the fowling physical soil attributes: density, porosity, flocculation index and soil aggregate stability. The experiment was conducted in factorial scheme, and graded on type of use/management (AFS 12 years; AFS 2.5 years; AFS 1 year and native forest) as well as depth (0-0.10; 0.10-0.20; 0.20-0.40 m). The results showed that over time, consolidated agroforestry systems provide less impactful alternatives and can assist in reversing the degradation processes, increasing soil porosity under these systems and reduce soil density, greater stability of aggregates and smaller thermal variations of soil. Therefore, consolidated agroforestry systems (12 years) promote a resilience of the soil structure and should be included in the production system, especially in regions of environmental preservation.

Keywords :

Physical indices; Vale do Ribeira; soil conservation; sustainable management.