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Lages, Brazil

Prates V.,CEP | Souza L.C.P.,Federal University of Parana | de Oliveira Jr. J.C.,University of Sao Paulo
Revista Brasileira de Engenharia Agricola e Ambiental

Mapping of soil has been highlighted in the scientific community, because as alertness about the environment increases, it is necessary to understand more and more about the distribution of the soil in the landscape, as well as its potential and its limitations for the use. In that way the main aim of this study was to apply indices representing landscape with the use of geoprocessing to give support in the delimitation of different compartments of landscape. Primary indices used were altitude above channel network (AACN) and secondary channel network base level (CNBL), multiresolution index of valley bottom flatness (MRVBF) and Wetness index (ITW), having as object of study the Canguiri Experimental Farm, located in Pinhais, Curitiba's Metropolitan region. To correlate the chemical attributes and granulometric ones in sampling groups, totalizing 17 points (Sugamosto, 2002), a matrix of a simple linear correlation (Pearson) with the indices of the landscape were generated in the Software Statistica. The conclusion is that the indices representing the landscape used in the analysis of groupings were efficient as support to map soil at the level of suborder of Brazilian Soil Classification System. Source

Mattern D.S.,CEP
Environmental Practice

The National Environmental Policy Act (NEPA) statute and regulations require that documents should be prepared for a wide range of readers. These readers have markedly different and sometimes contradictory information needs and expectations. The process of developing NEPA documents supports good intra-agency and interagency communication but produces lengthy technical documents that are difficult for the general public to understand. Environmental Practice 16: 1-6 (2014) © © 2014 National Association of Environmental Professionals. Source

This article presents the findings of an online survey and interviews with National Environmental Policy Act (NEPA) professionals on their opinion on the essential and most important components of agency NEPA programs. A list of NEPA program components was developed based on a review of books, articles, and papers on ways to improve the NEPA process. Results of the online survey indicate that all of the listed elements are considered important for an agency NEPA program to be successful. No program element was ranked lower than 3 ("somewhat important"). The highest-ranked element (1, "critically important") was senior management support for the NEPA process. Interviews with senior NEPA specialists confirmed that senior management support for the NEPA process was critical, and that other critical components flowed from that support. Senior managers were interpreted as being the agency's senior NEPA manager or the senior manager at each facility, installation, or command. Education was most frequently identified as how agency NEPA staff could develop and maintain consistent senior management support for the NEPA process. The interview sample size was small, and further research could be conducted with other agency representatives to identify additional successful methods to develop consistent senior management support for the NEPA process. © National Association of Environmental Professionals 2014. Source

Takahashi H.W.,CEP | Okumura R.S.,State University Londrina | Takahashi A.,State University Londrina
Revista Brasileira de Fruticultura

The studies on mineral nutrition of persimmon in Brazil,at a systematic form, are inexistent and quitescarce, but some studies can be found in Japan,New Zealand and Australia. This work had the objective to study the mineral nutrition of persimmon, cv. Giombo,focusing on the variation of macronutrients concentration during the developmentstages of the organs that compose the reproductive branches. Theexperiment was conducted in a commercial orchard of persimmon, cv. Giombo, located in Faxina, state of Paraná, Brazil.Foliar levels of macronutrients, in the recommendedphenological stage to evaluate the nutritional status,were similar to Australia and Japanand contained 20.30, 1.25, 30.55, 23.45, 3.05 and 3.85 g kg-1 of dry weight for N, P, K, Ca, Mg and S, respectively. Source

Panachuki E.,State University of Mato Grosso do Sul | Bertol I.,CEP | Sobrinho T.A.,Federal University of Mato Grosso do Sul | Vitorino A.C.T.,Federal University of Grande Dourados | And 2 more authors.
Revista Brasileira de Ciencia do Solo

Soil roughness is influenced by soil management, particularly by soil tillage and mainly reduced by rainfall action. This study aimed to evaluate the influence of different systems of soil management and artificial rainfall application on soil surface roughness. The treatments were a result of the combination of three systems: no-tillage, conventional tillage and minimum tillage, with three levels of dry soybean (Glycine max L. Merrill): residue: 0; 2; and 4 Mg ha-1. Experimental units received artificial rain (seven rains), at an intensity of 60 mm h-1 and during 60 min each, amounting to 420 mm rain. Roughness was evaluated immediately before and after tilling and immediately after the rainfalls. Roughness values between 1.88 and 5.41 mm were found under no-tillage, 3.88 and 8.30 mm under conventional tillage, and 3.31 and 17.45 mm under minimum tillage. It was concluded that soil tillage operations generally increased surface roughness. Values of random roughness were highest under minimum tillage; rain did not deteriorate the soil microrelief in the no-tillage treatments with soil cover. Source

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