Results 1 to 10 of about 4,913,721 (332)

Characteristics stochastic analysis of long and narrow deep excavations under soil spatial variability [PDF]

Scientific Reports
The mechanical properties of soil, resulting from the weathering of rocks through physical and chemical processes, exhibit spatial variability. This variability introduces uncertainties in the design and characteristics of excavation projects. To address
Shouhua Liu, Zhaoliang Wang, Yadong Chen, Guohua Fang, Yiding Zhao, Junsheng Yang, Huasheng Sun   +6 more
doaj   +2 more sources

FLOW REGIMES SPATIAL VARIABILITY [PDF]

Aerul şi Apa: Componente ale Mediului, 2011
Flow regimes spatial variability. This study investigates the spatial distribution of annual flow regimes within the Tur River basin, using 29-year records (1979-2007) of mean monthly flow, for 7 gauging stations.
HORVÁTH Csaba, St. BUIMAGA-IARINCA, G. ROŞIAN, Oana-Antonia POP   +3 more
doaj   +1 more source

GAUSSIAN SPATIAL LINEAR MODEL OF SOYBEAN YIELD USING BOOTSTRAP METHODS [PDF]

Engenharia Agrícola, 2018
This study aims to quantify the uncertainties associated to the parameters of a Gaussian spatial linear model (GSLM) and the assumption of normality residuals in the modeling of the spatial dependence of the soybean yield as a function of soil chemical ...
Gustavo H. Dalposso, Miguel A. Uribe-Opazo, Jerry A. Johann, Manuel Galea, Fernanda De Bastiani   +4 more
doaj   +1 more source

Spatial variability and its scale dependency of observed and modeled soil moisture over different climate regions [PDF]

Hydrology and Earth System Sciences, 2013
Past studies on soil moisture spatial variability have been mainly conducted at catchment scales where soil moisture is often sampled over a short time period; as a result, the observed soil moisture often exhibited smaller dynamic ranges, which ...
B. Li, M. Rodell
doaj   +1 more source

Saturated Hydraulic Conductivity Measurements in a Loam Soil Covered by Native Vegetation: Spatial and Temporal Variability in the Upper Soil Layer

Geosciences, 2021
Saturated hydraulic conductivity (Ks) of soil, especially of the upper soil layer, is a basic parameter for modeling water infiltration and solute transport in the soil. In the present study, spatial and temporal variability of Ks in the upper soil layer
George Kargas, Paraskevi A. Londra, Kyriaki Sotirakoglou   +2 more
doaj   +1 more source

APPLICATION OF SPATIAL MODELING FOR UPLAND COTTON YIELD IN THE SEMI-ARID OF PARAÍBA STATE, BRAZIL

Engenharia Agrícola, 2021
This study aimed to evaluate the spatial dependence between agrometeorological variables and upland cotton yield the microregion of Cariri Oriental, Paraíba state (Brazil), using weighted spatial modeling system.
Madson T. Silva, Antônia S. de Andrade, Edivaldo A. de O. Serrão, Vicente de P. R. da Silva, Enio P. de Souza   +4 more
doaj   +1 more source

Large broad-leaved canopy of banana (Musa nana Lour.) induces dramatically high spatial–temporal variability of throughfall

Hydrology Research, 2021
Throughfall (TF) is an important water input of rainfall redistribution into floor, and its spatial–temporal variability under some species' canopies has been documented to evaluate effect on splash erosion.
Wanjun Zhang, Xiai Zhu, Chunfeng Chen, Huanhuan Zeng, Xiaojin Jiang, Junen Wu, Xin Zou, Bin Yang, Wenjie Liu   +8 more
doaj   +1 more source

Cluster analysis identified rainfall homogeneous regions in Tocantins state, Brazil

Bioscience Journal, 2017
Identifying homogeneous regions regarding the monthly rainfall is relevant in agricultural planning, especially in relation to the installation of crops.
José Francisco de Oliveira-Júnior, Fábio Miranda Gomes Xavier, Paulo Eduardo Teodoro, Givanildo de Gois, Rafael Coll Delgado   +4 more
doaj   +3 more sources

Assessment of Temperature and Elevation Controls on Spatial Variability of Rainfall in Iran

Atmosphere, 2017
With rainfall changes, hydrological process variability increases. This study predicts the potential effects of temperature and topography characteristics on rainfall spatial variability.
Majid Javari
doaj   +1 more source

Vegetation structure determines the spatial variability of soil biodiversity across biomes

Scientific Reports, 2020
The factors controlling the spatial variability of soil biodiversity remain largely undetermined. We conducted a global field survey to evaluate how and why the within-site spatial variability of soil biodiversity (i.e. richness and community composition)
Jorge Durán, Manuel Delgado-Baquerizo
doaj   +1 more source