Results 61 to 70 of about 3,428 (197)

Spatial variation in morphological traits of natural Haloxylon ammodendron populations on the eastern margin of the Badain Jaran Desert

open access: yesPlant Biology, EarlyView.
Natural Haloxylon ammodendron populations on the eastern margin of the Badain Jaran Desert showed size‐associated differences in plant height, crown diameter, and spatial patterns among stem‐base diameter classes. These patterns describe morphological spatial variation but do not establish specific environmental drivers.
S. Hongfei, W. Chengjie, L. Shijie
wiley   +1 more source

High Temperatures and Rural Household Expenditure: Evidence From Longitudinal Data in Colombia

open access: yesReview of Development Economics, EarlyView.
ABSTRACT This paper examines the impact of rising temperature on rural household expenditure in Colombia by combining high‐resolution gridded weather data with a rich longitudinal household survey. Our results show that a one‐standard‐deviation increase in average daily temperature during the rainy months significantly reduces rural household ...
Cristhian D. Prieto   +2 more
wiley   +1 more source

Geoestatística no estudo de modelagem temporal da precipitação Geostatistics in the temporal modeling study of precipitation

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2011
A análise geoestatística é uma poderosa ferramenta utilizada em estudos de dependência espacial. No que tange à dependência temporal, poucas são as análises realizadas com essa metodologia.
André Q. de Almeida   +4 more
doaj  

Knowledge gap on the spatial structure of soil nitrogen mineralization variability—A systematic review

open access: yesAgricultural &Environmental Letters, Volume 11, Issue 2, December 2026.
Abstract Soil nitrogen (N) mineralization governs plant‐available N from soil organic matter and microbial turnover, and is typically estimated as potentially mineralizable nitrogen (PMN) via anaerobic incubations or as N0 and mineralization rate (k) via long‐term aerobic incubations.
Bibash Rokaya   +3 more
wiley   +1 more source

Spatial prediction of soil infiltration using functional geostatistics

open access: yesActa Universitatis Carolinae Geographica, 2018
The infiltration of water into the soil is a necessary parameter for irrigation systems design. Characterizing its spatial behavior allows a site-specific management of water according to soil conditions and crop requirements. The aim of this study is to
Diego Leonardo Cortes-D   +2 more
doaj   +1 more source

Emissions variability of greenhouse gases within and between sites during late‐season corn production in Mississippi

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Variability of greenhouse gas (GHG) fluxes and emissions among replicates in a study area can have an impact on results depending on the statistical tools used to assess significant differences among fixed effects. The objective of this study was to assess the effect of site and time (i.e., date) and the variability within and between sites on
Diego Della Lunga   +4 more
wiley   +1 more source

Model-Based Geostatistics the Easy Way

open access: yesJournal of Statistical Software, 2015
This paper briefly describes geostatistical models for Gaussian and non-Gaussian data and demonstrates the geostatsp and dieasemapping packages for performing inference using these models.
Patrick E. Brown
doaj   +1 more source

Optimized Spatial Ensemble Approaches for Approximating the Fire Weather Index With Interpolation

open access: yesEnvironmetrics, Volume 37, Issue 8, December 2026.
ABSTRACT Wildland fire science and management rely on modeling indicators of wildland fire risk, such as the Fire Weather Index (FWI). Spatial interpolation methods can estimate FWI across a region, but accuracy can vary with observation density and daily spatial dependencies.
Shiwen Liu, Kevin Granville
wiley   +1 more source

Four Decades of Research at the MADE Site and Beyond: Advancing the Understanding and Modeling of Solute Transport in Heterogeneous Media

open access: yesReviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo   +8 more
wiley   +1 more source

Study on Space Variation and Geostatistical Analysis of Soil Erosion

open access: yesShuitu baochi yanjiu, 2005
According to the Shizi small watershed’s soil erosion space variation characteristic,the geostatistics method analysis indicated,the erosion in the area is on belt distributing.Its variant characteristic is similar to the topography distribution and land
LU Yu-dong~1, TAN Qin-wen~2
doaj  

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