EFFECTS OF A STRAW LAYER ON THE SOIL THERMAL BEHAVIOR
Keywords:Soil temperature. Soil heat flux. Crop residue.
The presence of crop residue on the soil surface has an impact on evaporation, water storage, soil temperature and soil heat flux. Consequently, changes the energy transfer in the soil-atmosphere system. The objective of this work is study the influence of crop residues in the soil thermal variables. It was concluded that the thermal effect of a straw layer is large, leading to surface temperature differences around 10°C. With depth increasing, the effect of straw coverage decreases, leading to a temperature difference to 4°C of 5cm depth. The most important consequence of higher temperature on bare ground is an increase of soil heat flux. In stable weather conditions, this difference can reach 29 W/m2.
Sándor, R., Fodor, N. Simulation of Soil Temperature Dynamics with Models Using Different Concepts. The Scientific World Journal
Neves, J. da C. Perfil da temperatura do solo com e sem vegetação em um pomar de mangueiras em Salinopolis-Pará Brasil. Anais Congresso Brasileiro de Agrometeorologia. Belém-PA, 2013.
Santos, H. G. dos, et al. Sistema brasileiro de classificação de solos. 3. ed. rev. e ampl. Brasília, DF: Embrapa, 2013. 353 p.
Sarkar, S., Singh, S. R. Interactive effect of tillage depth and mulch on soil temperature, productivity and water use pattern of rainfed barley (Hordeum vulgare Soil & Tillage Research. 92 79–86, 2007.
Sarkar, S., Paramanick, M., Goswami, S .B. Soil temperature, water use and yield of yellow sarson (Brassica napus L. var. glauca) in relation to tillage intensity and mulch management under rainfed lowland ecosystem in eastern India. Soil & Tillage Research. 93 94–101 2007.
How to Cite
To access the DECLARATION AND TRANSFER OF COPYRIGHT AUTHOR’S DECLARATION AND COPYRIGHT LICENSE click here.
Ethical Guidelines for Journal Publication
The Ciência e Natura journal is committed to ensuring ethics in publication and quality of articles.
Conformance to standards of ethical behavior is therefore expected of all parties involved: Authors, Editors, Reviewers, and the Publisher.
Authors: Authors should present an objective discussion of the significance of research work as well as sufficient detail and references to permit others to replicate the experiments. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable. Review Articles should also be objective, comprehensive, and accurate accounts of the state of the art. The Authors should ensure that their work is entirely original works, and if the work and/or words of others have been used, this has been appropriately acknowledged. Plagiarism in all its forms constitutes unethical publishing behavior and is unacceptable. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable. Authors should not submit articles describing essentially the same research to more than one journal. The corresponding Author should ensure that there is a full consensus of all Co-authors in approving the final version of the paper and its submission for publication.
Editors: Editors should evaluate manuscripts exclusively on the basis of their academic merit. An Editor must not use unpublished information in the editor's own research without the express written consent of the Author. Editors should take reasonable responsive measures when ethical complaints have been presented concerning a submitted manuscript or published paper.
Reviewers: Any manuscripts received for review must be treated as confidential documents. Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should be conducted objectively, and observations should be formulated clearly with supporting arguments, so that Authors can use them for improving the paper. Any selected Reviewer who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the Editor and excuse himself from the review process. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.