Erosion pins are considered a simple and inexpensive way to estimate soil losses due to erosion and have been used in different environments with different degrees and types of erosion. Despite the advantages of this technique, there is a shortage of studies that demonstrate how data systematization and soil loss calculations are performed using this technique. Therefore, this study aimed to present the step-by-step data systematization process of erosion pins obtained in the field and the calculation of soil losses, with the measurement of soil losses under the effect of hydrogel. Readings from 16 pins installed in an area cultivated with soursop trees planted on contour lines and associated with stone rows were monitored weekly between 19/02 and 19/03/2022 by measuring the distance between the soil surface and the end of each pin. The readings were organized by pin and date of measurement. Subsequently, soil lowering and burial, soil density, useful area of each pin, and soil loss in kg/m3 and Mg/ha-1 were determined, enabling statistical analysis and technical interpretation of the data.
The consumption of healthy foods is essential for human nutrition and quality of life. Thus, family farming is responsible for the production of organic food, since the people who live in urban centers depend on this sustainable production. In addition to this, the spatial focus of the research is located on the sertanejo surface, in the northeastern semi-arid region. The community of São Domingos is located 25 km from the municipality of Sobral-Ceará. The objective of the study is to characterize the agroecological systems of consumption and production (PAIS and Mandala) and to present their multiple uses, and commercial flows in the sale of cultivated products. It is concluded that agroecological systems are a source of income that promotes the local economy and helps in the healthy diet of people who consume the cultivated fruits.
The consumption of healthy foods is essential for nutrition and quality of human life. Thus, family farming is responsible for the production of organic food, since the people who inhabit urban centers depend on this sustainable production. In addition, the spatial clipping of the research is situated on the backcountry surface, in the semi-arid northeast. The community of São Domingos, is located 25 km from the municipality of Sobral- Ceará. The aim of the study is to characterize the agroecological systems of consumption and production (PAIS and Mandala) and to present their multiple uses, and commercial flows in the sale of cultivated products. It is concluded that agroecological systems are a source of income that fosters the local economy and helps in the healthy diet of people who consume the cultivated fruits.
The pressure constantly increases for the use and occupation of unexplored areas, concomitantly degrading natural resources. On the other hand, national, state, and municipal laws have arisen to regulate and preserve sites for environmental sustainability, such as Areas of Permanent Preservation (APP) and Legal Reserves. Nevertheless, the significant territorial extension and the multiple legislation make it difficult to define these areas. A relevant instrument to solve this issue is the geoenvironmental mapping of the territory. This work sought to delimit effectively regulated areas for use and occupation based on the geoenvironmental mapping of a section of the municipality of Ubajara, Ceará. Therefore, it was necessary to analyze the hypsometry, slope, water resource, and soil and delimit the APP and Conservation Units. The mapping revealed 15.67% of APP and 37.44% of use and occupation areas, being 46.88% effectively regulated for the use and occupation of the soil with diverse economic activities – such as agricultural, forestry, and pastoral-contemplated in the Ubajara master plan.
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