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1. Retrievals of key biophysical parameters at mesoscale from the Ts/VI scatterplot domain

Author:
George P. Petropoulos; Dionissios Hristopulos
Source:
Geocarto international 2022 v.37 no.8 pp. 2385-2405
ISSN:
1752-0762
Subject:
soil water content,   etc   ; biosphere; heat; models; prediction;     Show all 5 Subjects
Abstract:
... Earth Observation (EO) is often combined with simulated process models to gain insight on key parameters for the physical mechanisms and interactions of the Earth's system. The objective of this study is two-fold: First, it explores the combined use of EO data from the Advanced Along-Track Scanning Radiometer (AATSR) with the SimSphere land biosphere model via the “triangle” to derive latent (LE) ...
DOI:
10.1080/10106049.2020.1821099

2. Isotopic deviations of water extracted from carbonate soil by cryogenic vacuum extraction: implication for root water uptake analysis

Author:
Nannan Jiang; Zhongcheng Wang; Xingyu Ma; Wenna Liu; Hongsong Chen; Yunpeng Nie
Source:
Plant and soil 2022 v.475 no.1-2 pp. 79-89
ISSN:
0032-079X
Subject:
soil water content,   etc   ; bedrock; carbonates; isotope fractionation; karsts; water uptake;     Show all 6 Subjects
Abstract:
... PURPOSE: Isotope-based root water uptake analysis usually involves cryogenic vacuum extraction (CVE) of water from soil and other water-holding materials, according to the assumption that no isotopic fractionation occurs during the related processes. Recently, a growing body of literature identified isotopic deviations that were caused by CVE. However, the isotopic deviations of water extracted fr ...
DOI:
10.1007/s11104-022-05455-9

3. Effect of topography on spatiotemporal patterns of soil moisture in a mountainous region of Northwest China

Author:
Ling Li; Dongdong Wu; Tiejun Wang; Yunqiang Wang
Source:
Geoderma regional 2022 v.28 pp. e00456
ISSN:
2352-0094
Subject:
soil water content,   etc   ; mountains; soil water; telemetry; topography; variance; watersheds; China;     Show all 8 Subjects
Abstract:
... Soil moisture data were obtained from the Watershed Allied Telemetry Experimental Research Network (Waternet), located in a mountainous region of northwest China, to evaluate the impacts of environmental factors on regional soil moisture spatiotemporal patterns. Based on the temporal stability analysis method, the results showed that soil moisture spatial distributions in the study region were mor ...
DOI:
10.1016/j.geodrs.2021.e00456

4. Extension of the Hapke model to the spectral domain to characterize soil physical properties

Author:
Anxin Ding; Han Ma; Shunlin Liang; Tao He
Source:
Remote sensing of environment 2022 v.269 pp. 112843
ISSN:
0034-4257
Subject:
soil water content,   etc   ; data collection; environment; models; prediction; reflectance; satellites; wavelengths;     Show all 8 Subjects
Abstract:
... The Hapke bidirectional reflectance model has mainly been used in planetary remote sensing and has given rise to some studies in Earth science. However, it has not yet been comprehensively evaluated using data from different sources, and its ability to model reflectance spectra needs to be further explored. Therefore, the objective of this study was to develop a tangible parametric model of soil h ...
DOI:
10.1016/j.rse.2021.112843

5. Characterizing soil water content variability across spatial scales from optimized high-resolution distributed temperature sensing technique

Author:
Mahmoud Shehata; Pierre Gentine; Natalie Nelson; Chadi Sayde
Source:
Journal of hydrology 2022 v.612 pp. 128195
ISSN:
0022-1694
Subject:
soil water content,   etc   ; equations; fiber optics; models; soil water; temperature; thermal conductivity;     Show all 7 Subjects
Abstract:
... Fiber-optic Distributed Temperature Sensing, when combined with the Single-probe Heat-pulse technique can measure soil moisture (θ) across spatial scales. The key limitation of this system is in obtaining the relationship between soil thermal conductivity (λ) and θ for a specific field. Using the Department of Energy Atmospheric Radiation Measurement (ARM) site, this study tested a new methodology ...
DOI:
10.1016/j.jhydrol.2022.128195

6. Spatial pattern variation of artificial sand-binding vegetation based on UAV imagery and its influencing factors in an oasis–desert transitional zone

Author:
Ying Zheng; Qiyue Yang; Heng Ren; Dejin Wang; Changming Zhao; Wenzhi Zhao
Source:
Ecological indicators 2022 v.141 pp. 109068
ISSN:
1470-160X
Subject:
soil water content,   etc   ; Haloxylon ammodendron; altitude; atmospheric precipitation; evolution; irrigation; landscapes; vegetation;     Show all 8 Subjects
Abstract:
... The spatial pattern of vegetation can reflect the impacts of the environment on plants and the response of plants to the environment, which can promote a deep understanding of the potential driving mechanisms of vegetation evolution and community maintenance. A sand-binding vegetation system without irrigation has been implemented in the oasis–desert transitional zone since the 1970 s, where the a ...
DOI:
10.1016/j.ecolind.2022.109068

7. Use of Hydrological Models to Predict Risk for Rutting in Logging Operations

Author:
Sima Mohtashami; Tomas Thierfelder; Lars Eliasson; Göran Lindström; Johan Sonesson
Source:
Forests 2022 v.13 no.6 pp. -
ISSN:
1999-4907
Subject:
soil water content,   etc   ; forestry; hydrologic data; prediction; risk; soil water; spatial data;     Show all 7 Subjects
Abstract:
... Using hydrological models with a high temporal resolution to predict risk for rutting may be a possible method to improve planning of forwarder trails or to schedule logging operations in sites with low bearing capacity to periods when soil moisture content is at a minimum. We have studied whether descriptions of rut variations, collected in 27 logging sites, can be improved by using hydrological ...
DOI:
10.3390/f13060901

8. Quantifying the spatio-temporal variability of total water content in seasonally frozen soil using actively heated fiber Bragg grating sensing

Author:
Mengya Sun; Bin Shi; Chengcheng Zhang; Jie Liu; Junyi Guo; Xing Zheng; Yunqiang Wang; Guangqing Wei
Source:
Journal of hydrology 2022 v.606 pp. 127386
ISSN:
0022-1694
Subject:
soil water content,   etc   ; calibration; durability; fiber optics; frozen soils; loess; water content;     Show all 7 Subjects
Abstract:
... Actively heated fiber-optic (AHFO) method has become a research focus for soil water content measurement in recent years due to its advantages such as small size, distributed measurement and good durability. However, the AHFO method is presently coupled to distributed temperature sensing (AHFO-DTS) which is inevitably limited by low temperature measurement accuracy and spatial resolution. Furtherm ...
DOI:
10.1016/j.jhydrol.2021.127386

9. UAV-based multispectral and thermal cameras to predict soil water content – A machine learning approach

Author:
László Bertalan; Imre Holb; Angelika Pataki; Gergely Szabó; Annamária Kupásné Szalóki; Szilárd Szabó
Source:
Computers and electronics in agriculture 2022 v.200 pp. 107262
ISSN:
0168-1699
Subject:
soil water content,   etc   ; agriculture; cameras; electronics; irrigation; precision agriculture; prediction; unmanned aerial vehicles;     Show all 8 Subjects
Abstract:
... Soil water content (SWC) estimation is a crucial issue of agricultural production, and its mapping is an important task. We aimed to study the efficacy of UAV-based thermal (TH) and multispectral (MS) cameras in SWC mapping. Soil samples were collected and the SWC content was determined in a laboratory as reference data and four machine learning regression algorithms (Random Forest [RF], Elastic N ...
DOI:
10.1016/j.compag.2022.107262

10. Drainage congestion due to road network on the Kosi alluvial Fan, Himalayan Foreland

Author:
Abhilash Singh; Mood Niranjan Naik; Kumar Gaurav
Source:
International journal of applied earth observation and geoinformation 2022 v.112 pp. 102892
ISSN:
1569-8432
Subject:
soil water content,   etc   ; drainage; neural networks; rivers; roads; satellites; soil water; spatial data;     Show all 8 Subjects
Abstract:
... We use surface soil moisture content as a proxy to assess the effect of drainage congestion due to structural barriers on the alluvial Fan of the Kosi River on the Himalayan Foreland. We used Sentinel-1 satellite images to evaluate the spatial distribution of soil moisture in the proximity of structural barriers (i.e., road network). We applied modified Dubois and a fully connected feed-forward ar ...
DOI:
10.1016/j.jag.2022.102892

11. Estimate Cotton Water Consumption from Shallow Groundwater under Different Irrigation Schedules

Author:
Guohua Zhang; Xinhu Li
Source:
Agronomy 2022 v.12 no.1 pp. -
ISSN:
2073-4395
Subject:
soil water content,   etc   ; agronomy; cotton; equations; evaporation; evapotranspiration; groundwater; irrigation scheduling; models; water table;     Show all 10 Subjects
Abstract:
... Shallow groundwater is considered an important water resource to meet crop irrigation demands. However, limited information is available on the application of models to investigate the impact of irrigation schedules on shallow groundwater depth and estimate evaporation while considering the interaction between meteorological factors and the surface soil water content (SWC). Based on the Richards e ...
DOI:
10.3390/agronomy12010213

12. Evaluating the effect of DEM resolution on performance of cartographic depth-to-water maps, for planning logging operations

Author:
Sima Mohtashami; Lars Eliasson; Linnea Hansson; Erik Willén; Tomas Thierfelder; Tomas Nordfjell
Source:
International journal of applied earth observation and geoinformation 2022 v.108 pp. 102728
ISSN:
1569-8432
Subject:
soil water content,   etc   ; disturbed soils; lidar; risk; soil water; spatial data; topography; water flow;     Show all 8 Subjects
Abstract:
... Reliable and accurate soil moisture maps are needed to minimise the risk of soil disturbance during logging operations. Depth-to-water (DTW) maps extracted from digital elevation models have shown potential for identifying water flow paths and associated wet and moist areas, based on surface topography. We have examined whether DEMs from airborne LiDAR data with varying point density can improve p ...
DOI:
10.1016/j.jag.2022.102728

13. Experimental study on the electro-dewatering transport of Hangzhou sludge

Author:
Yanli Tao; Jian Zhou; Zhanyou Luo; Taonga J. Manda; Xiaonan Gong; Baoping Zou
Source:
Drying technology 2022 v.40 no.5 pp. 864-872
ISSN:
1532-2300
Subject:
soil water content,   etc   ; cations; electric current; electrodes; salinity; sludge; soil salinity; technology; water content;     Show all 9 Subjects
Abstract:
... Electro-dewatering is believed to be an alternative and effective technique to dewater sludge. The objective of this study is to explore the influence of process parameters (electrode materials, potential gradient, electrode arrangement, soil water content, and soil salinity) on the electro-dewatering transport, which determines the electro-dewatering efficiency. A series of experiments were perfo ...
DOI:
10.1080/07373937.2020.1835946

14. An efficient method for determining DEM parameters of a loose cohesive soil modelled using hysteretic spring and linear cohesion contact models

Author:
Xuezhen Wang; Qingkai Zhang; Yuxiang Huang; Jiangtao Ji
Source:
Biosystems engineering 2022 v.215 pp. 283-294
ISSN:
1537-5110
Subject:
soil water content,   etc   ; angle of repose; cohesion; friction; prediction; soil water; spring; water content;     Show all 8 Subjects
Abstract:
... Appropriate discrete element modelling (DEM) parameters are essential for accurate prediction of soil properties and disturbance. This study aims to provide an efficient method for accurately determining DEM parameters of a loose cohesive soil in a range of soil conditions. DEM parameters of the loose cohesive soil modelled using hysteretic spring and linear cohesion contact models were determined ...
DOI:
10.1016/j.biosystemseng.2022.01.015

15. Rainfall-runoff characteristics and their threshold behaviors on a karst hillslope in a peak-cluster depression region

Author:
Sheng Wang; Yan Yan; Zhiyong Fu; Hongsong Chen
Source:
Journal of hydrology 2022 v.605 pp. 127370
ISSN:
0022-1694
Subject:
soil water content,   etc   ; geophysics; karsts; rain; runoff; seepage; soil depth; topographic slope; water storage; China;     Show all 10 Subjects
Abstract:
... Water balance characteristics and rainfall-runoff relationships of karst slope, are poorly understood worldwide, even though karst landscapes occupy 10–15% the planet’s land surface. Dynamic hydrological responses were monitored for 43 rainfall events on a karst slope in southwest China over two years (2018–2019). The responses included surface, subsurface, and epikarst seepage runoff (abbreviated ...
DOI:
10.1016/j.jhydrol.2021.127370

16. Determination of the asymmetric parameter in complementary relations of evaporation in alpine grasslands of the Tibetan Plateau

Author:
Liming Wang; Fuqiang Tian; Songjun Han; Tong Cui; Xianhong Meng; Hongchang Hu
Source:
Journal of hydrology 2022 v.605 pp. 127306
ISSN:
0022-1694
Subject:
soil water content,   etc   ; alpine grasslands; ecosystems; eddy covariance; equations; evaporation; soil water; standard deviation; China;     Show all 9 Subjects
Abstract:
... Complementary equations have been widely applied to evaporation (E) estimation in poorly monitored areas and under changing conditions. It is essential to determine a priori the key parameter called the asymmetric parameter (or land surface parameter in the sigmoid equation) b for predictive application of complementary equations. A previous study (Wang et al., 2020a) suggested ecosystem mean b va ...
DOI:
10.1016/j.jhydrol.2021.127306

17. Working Tool for Precision Tillage

Author:
S. I. Starovoytov; А. М. Grin’
Source:
Selʹskohozâjstvennye mašiny i tehnologii 2022 v.16 no.1 pp. 47-52
ISSN:
2618-6748
Subject:
soil water content,   etc   ; differential equation; friction; furrows; lawns and turf; soil formation; viscosity; water content;     Show all 8 Subjects
Abstract:
... It was shown that the soil formation turnover within the furrow is an important condition for precision tillage. The authors identified the possibility of creating a train of combined machines capable of preparing the soil for sowing or planting in one pass. It was noted that due to inertia forces, the cylindrical plow body is able to hold a layer with and without turf. The preliminary tests of th ...
DOI:
10.22314/2073-7599-2022-16-1-47-52

18. Extraction of the stable component of electrical surveys of soils and the consequence on the mapping of their thicknesses

Author:
Bourennane Hocine; Pasquier Catherine; Cousin Isabelle
Source:
Geoderma 2022 v.425 pp. 116051
ISSN:
0016-7061
Subject:
soil water content,   etc   ; algorithms; cluster analysis; crop management; electrical resistance; geostatistics; soil depth; temporal variation;     Show all 8 Subjects
Abstract:
... Knowledge of the spatial variability of soil thickness (ST) in agricultural fields is useful for improving crop management. Spatial patterns of ST can be characterized using temporal stability analysis of high spatial density and temporal frequency data, associated with sparse and difficult to obtain data on the target variable. Apparent electrical resistivity measurements of soil at high spatial ...
DOI:
10.1016/j.geoderma.2022.116051

19. How much raindrop energy is used for transportation of the two-phase splashed material?

Author:
M. Beczek; R. Mazur; M. Ryżak; A. Sochan; C. Polakowski; T. Beczek; A. Bieganowski
Source:
Geoderma 2022 v.425 pp. 116034
ISSN:
0016-7061
Subject:
soil water content,   etc   ; image analysis; kinetic energy; liquids; sand fraction; soil texture; transportation; water content;     Show all 8 Subjects
Abstract:
... The ejection of a mixture of solid (soil) and liquid (water) phases is one of the aspects of the energy dissipation of the impacting drop during the soil splash phenomenon. All calculations to date have only been taking into account the ejection of solid phase material and were based on significant simplifications of the measured quantities. Therefore, the aim of the study was an improved calculat ...
DOI:
10.1016/j.geoderma.2022.116034

20. The organic layer reduces water repellency of surface mineral soil under a humid-temperate forest

Author:
Masako Kajiura; Takeshi Tange
Source:
Geoderma 2022 pp. 116064
ISSN:
0016-7061
Subject:
soil water content,   etc   ; forests; mineral soils; runoff; topographic slope; water content; water flow; water repellent soils;     Show all 8 Subjects
Abstract:
... Surface soil under forests often shows soil water repellency (SWR). The organic (O) layer (e.g., litter layer) and SWR are both well known to affect water movements on hillslopes, yet little is known about their interaction. In this research, we established five O-layer removal (no O layer; NO) plots and seven O-layer remaining (with O layer; WO) plots on the same slope, which had developed thick ...
DOI:
10.1016/j.geoderma.2022.116064