Results 1 to 10 of about 315 (180)

Variabilidade espacial da emissão de CO2 em Latossolos sob cultivo de cana-de-açúcar em diferentes sistemas de manejo Spatial variability of CO2 emission on Oxisol soils cultivated with sugar cane under different management practices

open access: yesEngenharia Agrícola, 2008
Neste trabalho, foi determinada a estrutura da variabilidade espacial da emissão de CO2, temperatura e umidade de solos desprovidos de vegetação em duas localidades sob cultivo da cana-de-açúcar, em sistemas de manejos de cana crua e de cana queimada, no
Alan R. Panosso   +3 more
doaj   +1 more source

Evaluating the Concentration of Heavy Metals in Downstream Area of Southern Waste Landfill in Kermanshah [PDF]

open access: yesجغرافیا و پایداری محیط, 2020
Affected by the change of land-use pattern, soil pollution has become an important environmental issue in developed and developing countries. Heavy element pollution, as a kind of soil pollutant, is really dangerous due to their high toxicity and ...
Zainab Zainedini   +4 more
doaj   +1 more source

Variabilidade espacial da umidade de um Latossolo Vermelho-Amarelo sob plantio direto Spatial variability of soil water content of a Red-Yellow Latosol under no-tillage

open access: yesEngenharia Agrícola, 2010
O estudo da dependência espacial de atributos do solo é importante para aprimorar as práticas de manejo e de amostragem. Este trabalho teve o objetivo de estudar a variabilidade espacial da umidade de um Latossolo Vermelho-Amarelo sob plantio direto ...
Fabrício de M. T. Sampaio   +4 more
doaj   +1 more source

Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil Análise espaço-temporal da demanda hídrica do cafeeiro, no Estado de Minas Gerais

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2010
Scientific investigations about crop water requirements are of fundamental importance to the irrigation process. The main objective of this paper is to analyze and to map water requirements of coffee crop in Minas Gerais State, Brazil.
Luis C. de A. Lemos Filho   +3 more
doaj   +1 more source

Soil Moisture Mapping in an Arid Area Using a Land Unit Area (LUA) Sampling Approach and Geostatistical Interpolation Techniques

open access: yesISPRS International Journal of Geo-Information, 2016
Soil moisture (SM) plays a key role in many environmental processes and has a high spatial and temporal variability. Collecting sample SM data through field surveys (e.g., for validation of remote sensing-derived products) can be very expensive and time ...
Saeid Gharechelou   +3 more
doaj   +1 more source

Using Geostatistics for Spatial Analysis of Soil Moisture Content, Electrical Conductivity, and pH at Paddy Fields

open access: yesJournal of Tropical Soils, 2022
Soil is dynamic due to various internal and external processes exerted on the soil, resulting in unique soil characteristics in space in short and long distances.
Yagus Wijayanto   +3 more
doaj   +1 more source

Assessment spatial variability of rainfall erosivity factor (Case study: Fars Province) [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2019
Rainfall erosivity factor is the most important factor influencing soil erosion. Various indicators has been developed to quantify it. Selection the appropriate index due to ecological conditions is necessary.
somyyeh Soltanei   +2 more
doaj  

Geostatistical Spatio-Time model of crime in el Salvador: Structural and Predictive Analysis

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2011
Today, to study a geospatial and spatio-temporal phenomena requires searching statistical tools that enable the analysis of the dependency of space, time and interactions.
Welman Rosa Alvarado
doaj   +1 more source

Estimation and Analysis of Seasonal Rainfall Distribution and Potential of Türkiye and Its 25 Main Watersheds

open access: yesAtmosphere, 2023
In this study, the seasonal rainfall distribution in Türkiye and its 25 main watersheds were estimated, and potentials were calculated and analyzed. Empirical Bayesian kriging (EBK) and ordinary kriging (OK) methods were applied in interpolations.
Hasan Hüseyin Aksu
doaj   +1 more source

Variabilidad espacial de los modelos de infiltración de Philip y Kostiakov en un suelo Ândico</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Engenharia Agrícola</i>, 2008 </span><br><span class="r_content">Conhecer o comportamento da infiltração é de grande utilidade devido a sua aplicação na produção agrícola, pois permite definir a operação de sistemas de irrigação e estudar os efeitos de diferentes práticas de uso do solo.</span><br><span class="r_sub"><i>Andrés F. Rodríguez-Vásquez<span id="ma_10" style="display:none">, Andrés M. Aristizábal-Castillo, Jesús H. Camacho-Tamayo</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+2 more</a></small></i></span><br><small><a href="https://doaj.org/article/6d2879c886f241b78814f5076b4fafb4" target="_blank" rel="nofollow" title="doaj.org/article/6d2879c886f241b78814f5076b4fafb4">doaj</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-69162008000100007" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-69162008000100007'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-69162008000100007)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-geoestat%C3%ADstica/" class="suggestion"onclick="show_loader();"><b>geoestatística</b></a><br/><a href="/q-kriging/" class="suggestion"onclick="show_loader();"><b>kriging</b></a><br/><a href="/q-spatial_variability/" class="suggestion"onclick="show_loader();"><b>spatial variability</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-krigagem/" class="suggestion"onclick="show_loader();"><b>krigagem</b></a><br/><a href="/q-gis/" class="suggestion"onclick="show_loader();"><b>gis</b></a><br/><a href="/q-geostatistics/" class="suggestion"onclick="show_loader();"><b>geostatistics</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-soil_management/" class="suggestion"onclick="show_loader();"><b>soil management</b></a><br/><a href="/q-manejo_do_solo/" class="suggestion"onclick="show_loader();"><b>manejo do solo</b></a><br/><a href="/q-agricultura_de_precis%C3%A3o/" class="suggestion"onclick="show_loader();"><b>agricultura de precisão</b></a><br/></div></div></div><div class="pagenav"><b>1</b>  <a href="/q-geostatistic/p-2/" rel="nofollow">2</a>  <a href="/q-geostatistic/p-3/" rel="nofollow">3</a>  <a href="/q-geostatistic/p-4/" rel="nofollow">4</a>  <a href="/q-geostatistic/p-5/" rel="nofollow">5</a>   <a href="/q-geostatistic/p-2/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; height: 40px; bottom: 0px; background-color: #f5f5f5;"><div style="padding-left: 15px; padding-top: 10px"> <a href="/" rel="nofollow">Home</a> - <a href="/page-about/" rel="nofollow">About</a> - <a href="/page-disclaimer/" rel="nofollow">Disclaimer</a> - <a href="/page-privacy/" rel="nofollow">Privacy</a> </div></div> <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css"/> <script> (function(ss,ex){ window.ldfdr=window.ldfdr||function(){(ldfdr._q=ldfdr._q||[]).push([].slice.call(arguments));}; (function(d,s){ fs=d.getElementsByTagName(s)[0]; function ce(src){ var cs=d.createElement(s); cs.src=src; cs.async=1; fs.parentNode.insertBefore(cs,fs); }; ce('https://sc.lfeeder.com/lftracker_v1_'+ss+(ex?'_'+ex:'')+'.js'); })(document,'script'); })('JMvZ8gvrWA9a2pOd'); </script> </body> </html>