Results 11 to 20 of about 65,909 (309)

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

open access: yesScientific 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   +6 more
doaj   +2 more sources

Controls of Soil Spatial Variability in a Dry Tropical Forest. [PDF]

open access: yesPLoS One, 2016
We examined the roles of lithology, topography, vegetation and fire in generating local-scale (
Pulla S   +4 more
europepmc   +8 more sources

Effects of soil spatial variability on structural reliability assessment in excavations

open access: yesUnderground Space, 2020
In this study, the effects of soil spatial variability in braced excavations are investigated by focusing on three structural responses: wall bending moments, wall shear forces, and strut forces. The soil spatial variability is modeled using random field
Zhe Luo   +3 more
doaj   +3 more sources

Spatial variability of soil total nitrogen, phosphorus and potassium in Renshou County of Sichuan Basin, China

open access: yesJournal of Integrative Agriculture, 2019
Understanding soil nutrient distributions and the factors affecting them are crucial for fertilizer management and environmental protection in vulnerable ecological regions.
Xue-song GAO   +7 more
doaj   +3 more sources

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

open access: yesHydrology 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

Geological influence on the spatial variability of soils

open access: yesInternational Journal of Geotechnical Engineering, 2021
An evaluation of the spatial correlation length of two geological formations known as mudflows and residual soils has been conducted using standard penetration test (N1)60 values. The spatial correlation length is an important property in reliability-based design, in addition to the mean and standard deviation of soil parameters, but it is rarely ...
Juan Camilo Viviescas   +2 more
openaire   +3 more sources

Spatial variability in soil pH and land use as the main influential factor in the red beds of the Nanxiong Basin, China [PDF]

open access: yesPeerJ, 2019
Soil pH is the main factor affecting soil nutrient availability and chemical substances in soil. It is of great significance to study the spatial variability of soil pH for the management of soil nutrients and the prediction of soil pollution.
Ping Yan   +5 more
doaj   +2 more sources

Simplified methods for deformation analysis of tunnel structures considering spatial variability of soil properties

open access: yesYantu gongcheng xuebao, 2022
The spatial variability of soil properties is widely accepted, and the response of a geo-structure can be significantly affected by the spatial variability of the surrounding soil mass.
ZHANG Jin-zhang 1, 2, HUANG Hong-wei 1, ZHANG Dong-ming 1, PHOON Kok-kwang 2, TANG Chong 2
doaj   +1 more source

Spatial mapping of soil respiration using auxiliary variables. A small scale study [PDF]

open access: yesJournal of Central European Agriculture, 2021
Soil respiration is a significant contributor to the global emissions of CO2 and is governed by many soil factors. Reliable estimates of CO2 emission on different scales (e.g., field, regional level) are hard to obtain due to the expressed spatial and ...
Eszter TÓTH   +10 more
doaj   +1 more source

Predicting spatial variability of species diversity with the minimum data set of soil properties in an arid desert riparian forest

open access: yesFrontiers in Plant Science, 2022
Species diversity has spatial heterogeneity in ecological systems. Although a large number of studies have demonstrated the influence of soil properties on species diversity, most of them have not considered their spatial variabilities.
Xiaotong Li   +18 more
doaj   +1 more source

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