Results 21 to 30 of about 148 (98)

Enhancing irrigation management: Unsupervised machine learning coupled with geophysical and multispectral data for informed decision-making in rice production

open access: yesSmart Agricultural Technology
Integrating diverse data sources for site-specific management zones (SSMZ) in precision agriculture is a complex task. Soil surveys using apparent electrical conductivity (ECa) have proven effective in capturing field variability. However, relying solely
Nesrine Chaali   +6 more
doaj   +1 more source

A distance correlation index of spatial dependence for compositional data [PDF]

open access: yes, 2019
Geographical data in economic, social or environmental sciences are usually recorded as compositions, i.e. relative frequencies, and a common inquiring problem concerns the analysis of these data over different geographical regions.
Andreano M. S.   +2 more
core   +1 more source

Principal component analysis with georeferenced data : an application in precision agriculture [PDF]

open access: yes, 2012
La utilización de nuevas tecnologías asociadas a la agricultura de precisión permite capturar información de múltiples variables en gran cantidad de sitios georreferenciados dentro de lotes en producción.
Balzarini, Mónica   +3 more
core  

Establishment of homogeneous zones in a soil of alluvial origin

open access: yesCiência e Agrotecnologia
Soils have the ability to maintain plant growth and biological activity due to their physical and chemical properties. The aim of this study was to observe the spatial distribution of some chemical properties of the soil, such as pH, organic matter (OM),
Camilo Ignacio Jaramillo-Barrios   +3 more
doaj   +1 more source

GENERATION OF INTEGRATED MULTISPATIAL INPUT‐OUTPUT MODELS OF CITIES (GIMIMoC) i: INITIAL STAGE

open access: yesPapers in Regional Science, 1993
This paper deals with the first stage — initial description — of the Generation of an Integrated Multispatial Input-output Model of Cities (GIMIMoC), which incorporates multiple systems (urban economic, socio-demographic and housing subsystems) and multiple spatial scales (urban zone, city, region and nation) into a framework. The framework consists of
Yu‐xian Jin, Alan Wilson
openaire   +2 more sources

Plasma kinetic effects on interfacial mix and burn rates in multispatial dimensions

open access: yesPhysics of Plasmas, 2019
The physics of mixing in plasmas is of fundamental importance to inertial confinement fusion and high energy density laboratory experiments. Two- and three-dimensional (2D and 3D) particle-in-cell simulations with a binary collision model are used to explore kinetic effects arising during the mixing of plasma media.
L. Yin   +5 more
openaire   +2 more sources

Contrasting Responses of Multispatial Soil Fungal Communities of Thuja sutchuenensis Franch., an Extremely Endangered Conifer in Southwestern China

open access: yesMicrobiology Spectrum, 2022
The present study highlights the importance of fungal communities in an endangered plant, T. sutchuenensis . Comparative analysis of soil samples in nearly all extant T. sutchuenensis populations identified that soil properties, especially soil nutrients, might play critical roles in the ...
You-wei Zuo   +9 more
openaire   +2 more sources

Distribution patterns of benthic macroinvertebrate communities based on multispatial-scale environmental variables in the river systems of Republic of Korea [PDF]

open access: yesJournal of Freshwater Ecology, 2020
Understanding the relationship between benthic macroinvertebrates and environmental variables is the first step toward establishing sustainable freshwater ecosystems in terms of biodiversity, and this knowledge can be applied in river management. We analyzed major environmental variables that affect biotic communities on the national scale in the ...
Jeong-Ki Min, Dong-Soo Kong
openaire   +2 more sources

Study on Monitoring SPAD Values for Multispatial Spatial Vertical Scales of Summer Maize Based on UAV Multispectral Remote Sensing

open access: yesAgriculture, 2023
Rapid acquisition of chlorophyll content in maize leaves is of great significance for timely monitoring of maize plant health and guiding field management. In order to accurately detect the relative chlorophyll content of summer maize and study the responsiveness of vegetation indices to SPAD (soil and plant analyzer development) values of summer maize
Jiangtao Ji   +6 more
openaire   +2 more sources

Variabilidad espacial multivariada en variables de suelo y rendimiento a escala fina [PDF]

open access: yes, 2016
El manejo sitio-específico dentro de un lote requiere delimitar zonas homogéneas. Múltiples variables, tales como algunas propiedades del suelo, son usadas para la zonificación.
Balzarini, Monica Graciela   +3 more
core  

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