Aggregates morphometry of a Inceptisol under conservationist system

Semina: Ciências Agrárias

Milson Evaldo Serafim¹  Geraldo César de Oliveira²  Érika Andressa da Silva³  Carla Eloize Carducci⁴  Bruno Montoani Silva⁵ 

[1] Instituto Federal de Educação;Universidade Federal de Lavras, Departamento de Ciência do Solo;Universidade Federal de Lavras;Universidade Federal de Santa Catarina;Universidade Federal de São João Del Rei;

关键词: Análise de imagens;    Características morfométricas dos agregados;    Qualidade estrutural.;   

DOI  :  10.5433/1679-0359.2016v37n3p1165

来源: DOAJ

【 摘 要 】

Morphological characteristics of the soil aggregates are important tools to analyzing and monitoring the structural quality. The present study aimed to characterize morphometrically aggregates of a Inceptisol, originated from pelitic rocks, after 1.5 years of the implementation of a management system that adopts conservation tillage practices in the coffee cultivation. The aggregates were collected at the depths of 0.0-0.05; 0.05-0.20; 0.20-0.40; 0.40-0.80 m, both at row and interrow position in a coffee field, and also a natural environment of native vegetation that was used as a reference for the study. The analyzes of the aggregates were carried through 2D images obtained by scanning at 300 dpi spatial resolution. Each image contained 60 households and were processed using the software QUANTPORO. The morphometric variables were obtained: area, perimeter, compactness, roughness, appearance and Ferret diameter. For validation, the correlations among morphometric variables determined by image analysis and pattern aggregation indices (GMD, MWD and aggregates retained in the class > 2.00 mm) obtained by wet sieving were studied. After 1.5 years of implantation increased the dimensions of the aggregates on the natural environment have been detected, as well as better structural quality Inceptisol.

【 授权许可】

Unknown