Results 81 to 90 of about 923 (195)

Environmental Controls of Soil Inorganic and Organic Carbon Revealed Through Multivariate Analysis and Machine Learning in the Eastern Black Sea Region of Türkiye

Soil Use and Management, Volume 42, Issue 4, October‐December 2026.
ABSTRACT Understanding the controls of soil organic carbon (SOC) and soil inorganic carbon (SIC) in humid mountainous landscapes is challenging because of strong topo‐climatic and land‐use heterogeneity. This study assessed SOC, SIC, soil pH and the SIC/SOC ratio across 5964 km2 in the Eastern Black Sea region of Türkiye using 1310 topsoil samples ...
Yavuz S. Turgut, Ahmet Yılmaz, Kürşat Korkmaz, M. Eren Öztekin   +3 more
wiley   +1 more source

VERTICAL DISTRIBUTION AND SPATIAL PATTERN OF FINE ROOT DENSITY IN COFFEE – BASED AGROFORESTRY SYSTEMS UNDER ORGANIC AND CONVENTIONAL INPUTS

Tropical and Subtropical Agroecosystems, 2018
This research shows results on spatial changes of fine roots (d < 2.0 mm) in two Coffea arabica- shade tree associations: coffee shaded by a) Abarema idiopoda (timber and nitrogen fixing tree), and b) Terminalia amazonia (timber tree). These associations
Argenis Antonio Mora Garces
doaj  

Produtividade do milho relacionada com a resistência mecânica à penetração do solo sob preparo convencional Relationship between maize yield and soil mechanical resistance to penetration under conventional tillage

Engenharia Agrícola, 2006
A resistência mecânica do solo à penetração exerce grande influência sobre o desenvolvimento vegetal, uma vez que o crescimento das raízes e a produtividade das culturas variam de forma inversamente proporcional ao seu valor.
Onã S. Freddi, Morel P. Carvalho, Valdenir Veronesi Júnior, Guilherme J. Carvalho   +3 more
doaj   +1 more source

Analysis of Spatially Distributed Data in Internet of Things in the Environmental Context. [PDF]

Sensors (Basel), 2022
de Azevedo LJM, Estrella JC, Delbem ACB, Meneguette RI, Reiff-Marganiec S, de Andrade SC.   +5 more
europepmc   +1 more source

Geostatistic analyses in the assessment the beans families productivity

, 2009
A dependência espacial é a propensão pela qual o valor de uma variável observada em certa posição tende a assemelhar-se mais aos valores vizinhos do que ao restante das observações do conjunto amostral.
Feres, Andréia Luiza Gonzaga
core  

Mapping Glacier Bed Topography in Crevassed Regions: A New Passive Seismic Reflection Method Applied to Isunnguata Sermia, West Greenland

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Glacier bed topography is crucial for modeling ice mass loss. However, heavily crevassed regions are challenging to survey using conventional methods, leading to data gaps. We establish a passive seismic approach exploiting naturally occurring crevassing events recorded with a dense seismic array to image the ice–bed interface without spatial ...
Nicolas Paris, Florent Gimbert, Philippe Roux, Stephen J. Livingstone, Siobhan F. Killingbeck, Andrew J. Sole, Samuel H. Doyle, Jonathan D. Hawkins, Matthew W. Peacey, Adam D. Booth   +9 more
wiley   +1 more source

The Effects of Constructing Irrigation and Drainage Network of Rajaei Dam on Spatial and Temporal Changes of Groundwater Quality and Quantity

علوم آب و خاک, 2017
Construction of a dam in the upstream of Tajan basin, as one of the human activities in order to provide drinking water, hydropower, agriculture, flood control or other purposes, can be effective on other sectors such as water resources.
M. Khoshravesh, M. Valizadeh
doaj  

Variabilidade espacial e temporal do fósforo, potássio e da produtividade de uma lavoura cafeeira Spatial and temporal variability of phosphorus, potassium and of the yield of a coffee field

Engenharia Agrícola, 2012
A agricultura de precisão surge como uma importante ferramenta para melhorar o gerenciamento da produção cafeeira, mostrando que o conhecimento de determinadas características do solo, associado à resposta de produtividade do cafeeiro, pode facilitar a ...
Gabriel A. E S. Ferraz, Fábio M. da Silva, Luis C. C. Carvalho, Marcelo de C. Alves, Bruno C. Franco   +4 more
doaj   +1 more source

Reconnaissance study of watershed and cave sediment sources discharging from a karst spring, Iowa

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Springs discharging from karst landscapes provide sustainable flows to natural ecosystems and support productive fish hatcheries but sediment discharging from springs threatens the long‐term sustainability of hatcheries. In this study, we conducted a reconnaissance study to evaluate watershed and cave sediment sources discharging to Siewers ...
Keith E. Schilling, Joseph Honings, Thomas Doyle, Calvin Wolter, David Peate   +4 more
wiley   +1 more source

Research of correlation between electric soil conductivity and yield based on the use of GPS technology

Research in Agricultural Engineering, 2008
A contact method was used for the continuous measuring of soil electric conductivity using a six disc electrodes apparatus. The placement of the electrodes was chosen on the basis of the depth of the profiles surveyed: 0-0.3 and 0-0.9 m.
L. Ryšan, O. Šařec
doaj   +1 more source