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Artikel Jurnal
OMERE: A Long-Term Observatory of Soil and Water Resources, in Interaction with Agricultural and Land Management in Mediterranean Hilly Catchments
To account for the diversity of agricultural and ecosystem situations in hilly Mediterranean areas, the agro-hydrological observatory OMERE (Observatoire Méditerranéen de l’Environnement Rural et de l’Eau) monitors two farmed catchments—one in northern Tunisia and the other in southern France…
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Artikel Jurnal
Noninvasive Imaging of Processes in Natural Porous Media: From Pore to Field Scale
Noninvasive, high-resolution imaging techniques are important for visualizing water flow and transport processes in soils, which are natural porous media. They are a key to understanding effects such as crop production, water resource restoration, CO sequestration, or the transport and fate of…
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Artikel Jurnal
Grafting as a Method to Increase the Tolerance Response of Bell Pepper to Extreme Temperatures
Fluctuations of winter and summer and day and night temperatures strongly influence shoot and root growth, as well as the whole plant tolerance to extreme soil temperatures. We compared the response of a commercial pepper ( L.) hybrid (Romance, Rijk Zwaan) to a range of soil temperatures when…
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Monitoring Hydrological Processes for Land and Water Resources Management in a Mediterranean Ecosystem: The Alento River Catchment Observatory
In recent years, the critical zone (CZ) of catchments across the Mediterranean region has been influenced by rapid changes in both climate seasonality and land use–land cover. Rural ecosystems in southern Europe are experiencing prolonged droughts, seriously compromising water resource availability…
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Artikel Jurnal
Filtering of Period Infiltration in a Layered Vadose Zone: 1. Approximation of Damping and Time Lags
Infiltration and downward percolation of water in the vadose zone are important processes that can define the availability of water resources. We present an approach that provides insight into how periodic infiltration forcings at the land surface filter in a layered vadose zone in terms of changes…
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Artikel Jurnal
Spatiotemporal Variability and Related Factors of Soil Organic Carbon in Henan Province
Spatial variability and influential factors are important to evaluate soil organic C (SOC) and the C pool in large areas. In the present study, sampling was conducted from May to November 2011 in Henan Province, a typical agricultural region of Central China, to study the effects of soil properties…
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Artikel Jurnal
Soil Water Dynamics and Nitrate Leaching Under Corn–Soybean Rotation, Continuous Corn, and Kura Clover
Improving water quantity and quality impacts of corn ( L.)- and soybean [ (L.) Merr.]-based cropping systems is a key challenge for agriculture in the US Midwest. Long-term field experiments are important for documenting those effects and exploring possible solutions. This study examines…
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Artikel Jurnal
Inverse Estimation of Soil Hydraulic and Transport Parameters of Layered Soils from Water Stable Isotope and Lysimeter Data
Accurate estimates of soil hydraulic parameters and dispersivities are crucial to simulate water flow and solute transport in terrestrial systems, particularly in the vadose zone. However, parameters obtained from inverse modeling can be ambiguous when identifying multiple parameters simultaneously…
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Low-Field Borehole NMR Applications in the Near-Surface Environment
The inherent heterogeneity of the near subsurface (
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Effect of Air- and Water-Filled Voids on Neutron Moisture Meter Measurements of Clay Soil
Air- and water-filled voids around neutron moisture meter (NMM) access tubes have been cited as sources of volumetric water content (θ) measurement error in cracking clay soils. The objectives of this study were to experimentally quantify this potential error stemming from (i) uncertainty in bulk…
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Artikel Jurnal
Soil Drought and Water Carrying Capacity for Vegetation in the Critical Zone of the Loess Plateau: A Review
The Loess Plateau (LP) of China is a good representative area for critical zone (CZ) science studies. The LP is famous for its deep loess. In most areas, the thickness of the loess profile is deeper than 100 m, and two-thirds of the area is arid and semiarid. With the Grain-for-Green project, the…
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Artikel Jurnal
Unsaturated Zone CO2, CH4, and δ13C-CO2 at an Arid Region Low-Level Radioactive Waste Disposal Site
Elevated tritium, radiocarbon, Hg, and volatile organic compounds associated with low-level radioactive waste (LLRW) at the USGS Amargosa Desert Research Site (ADRS) have stimulated research on factors and processes that affect contaminant gas distribution and transport. Consequently, we examined…
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Evaluation of Gridded Meteorological Data for Calculating Water Balance Cover Storage Requirements
Water balance cover (WBC) systems are attractive for waste management facilities in arid to semiarid environments because they are a lower cost alternative to conventional geotechnical soil or composite barrier-style covers. The required storage () for a WBC is dependent on climatic conditions…
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Artikel Jurnal
Localized Sulfide Oxidation Limited by Oxygen Supply in a Full-Scale Waste-Rock Pile
Open-pit mines produce large amounts of waste rock that is placed on-site, often in tall, mixed-composition piles. These waste-rock piles pose environmental risks because their weathering (i.e., sulfide oxidation) may generate acidic and metal-laden drainage. However, the reaction and transport…
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Artikel Jurnal
Implementation and Application of a Root Growth Module in HYDRUS
A root growth module was adapted and implemented into the HYDRUS software packages to model root growth as a function of different environmental stresses. The model assumes that various environmental factors, as well as soil hydraulic properties, can influence root development under suboptimal…
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Artikel Jurnal
Adsorbing vs. Nonadsorbing Tracers for Assessing Pesticide Transport in Arable Soils
The suitability of two different tracers to mimic the behavior of pesticides in agricultural soils and to evidence the potential for preferential flow was evaluated in outdoor lysimeter experiments. The herbicide atrazine [6-chloro--ethyl-′-(1-methylethyl)-1,3,5-triazine-2,4-diamine] was used as a…
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Artikel Jurnal
Actual Evapotranspiration of Unirrigated Grass in a Smart Field Lysimeter
Lysimeters are basic instruments for evapotranspiration measurement. This study characterized the actual evapotranspiration of unirrigated and unfertilized grass in a warm region of the Czech Republic on a Chernozem loamy soil. An SFL-300 weighing lysimeter (diameter 0.3 m, depth 0.3 m) was used…
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Artikel Jurnal
Reynolds Creek Experimental Watershed and Critical Zone Observatory
The Reynolds Creek Experimental Watershed (RCEW) was established in 1960 as an “outdoor hydrological laboratory” to investigate hydrological processes of interest in the interior northwestern part of the United States. Initial emphasis was on installing and testing instrumentation and data…