Results 21 to 30 of about 4,481,642 (229)

Stratified Data Reconstruction and Spatial Pattern Analyses of Soil Bulk Density in the Northern Grasslands of China

open access: yesISPRS International Journal of Geo-Information, 2020
The spatial pattern of soil bulk density in the grasslands of northern China largely remains undefined, which raised uncertainty in understanding and modeling various soil processes in large spatial scale.
Yuxin Qiao   +3 more
doaj   +1 more source

Modeling and correction of soil penetration resistance for variations in soil moisture and soil bulk density [PDF]

open access: yesEngenharia Agrícola, 2016
This study aimed to describe the behavior of models for adjusting data of soil penetration resistance for variations in soil moisture and soil bulk density.
Wininton M. da Silva   +2 more
doaj   +1 more source

Modeling the Impact of Rhizosphere Bulk Density and Mucilage Gradients on Root Water Uptake

open access: yesFrontiers in Agronomy, 2021
In models of water flow in soil and roots, differences in the soil hydraulic properties of the rhizosphere and the bulk soil are usually neglected. There is, however, strong experimental evidence that rhizosphere and bulk soil hydraulic properties differ
Magdalena Landl   +8 more
doaj   +1 more source

Bulk density of forested mineral soils. [PDF]

open access: yesSilva Fennica, 1994
Relationships between bulk density and organic matter (OM) content, textural properties and depth are described for forested mineral soils from Central and Northern Finland. Core samples were taken of 0â5, 30â35 and 60â65 cm layers at 75 plots. Three measures of bulk density were calculated: the bulk density of the < 20 mm fraction (BD), the bulk ...
Tamminen, Pekka, Starr, Michael
openaire   +2 more sources

Machine-Learning Classification of Soil Bulk Density in Salt Marsh Environments

open access: yesSensors, 2021
Remotely sensed data from both in situ and satellite platforms in visible, near-infrared, and shortwave infrared (VNIR–SWIR, 400–2500 nm) regions have been widely used to characterize and model soil properties in a direct, cost-effective, and rapid ...
Iman Salehi Hikouei   +2 more
doaj   +1 more source

Modeling soil bulk density at the landscape scale and its contributions to C stock uncertainty [PDF]

open access: yes, 2012
Soil bulk density (Db) is a major contributor to uncertainties in landscape-scale carbon and nutrient stock estimation. However, it is time consuming to measure and is, therefore, frequently predicted using surrogate variables, such as soil texture ...
R. Creamer (6105116)   +16 more
core   +2 more sources

An investigation into wetland soil-implement mechanics [PDF]

open access: yes, 1990
An investigation was initiated to obtain some understanding on the behaviour of soil at higher moisture content and to explore the potential of preparing paddy fields with reduced amounts of water.
Ahmad, Desa
core   +7 more sources

Considering the soil compaction status on logging areas in a Hyrcanian forest

open access: yesJournal of Forest Science, 2015
This paper deals with the issue of soil compaction during timber harvesting operations on cutting areas. Soil compaction was assessed following the logging operation in Darabkola forest area by measuring soil bulk density.
S.A.O. Hosseini   +3 more
doaj   +1 more source

Soil compaction caused by 450C Timber Jack wheeled skidder (Shefarood forest, northern Iran)

open access: yesJournal of Forest Science, 2007
In forest harvesting operations usually after using skidding machinery (skidders), traces of soil damage in the form of soil compaction and wheel and logs ruts can be seen in the forest soil. Soil bulk density, which represents soil compaction, decreases
R. Naghdi   +3 more
doaj   +1 more source

Effects of Wetting-drying Cycles on Bulk Density and Saturated Hydraulic Conductivity of Soils

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 Changes in density and hydraulic conductivity of soil not only modulate subsurface hydrological processes but also affect root growth and root uptake of water and nutrients from soil.
SUN Zhaojun   +3 more
doaj   +1 more source

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