The mathematical represntation of the soil hydraulic properties is of central importance for modeling water, solute and energy transport in soils. The established models of the water retention and hydraulic conductivity curves account for capillary water retention and conductivity, but neglect water adsorption and water flow in films and pore corners. They are therefore suited for modeling flow and

In this study, we perform a data assimilation (DA) experiment on a very large number (> 700) of small‐ and medium‐scale (150 to 10000 km2) European catchments to assess the impact of satellite soil moisture (SM) DA on streamflow simulations for different climatic and hydrologic conditions. In the experiment, Climate Change Initiative (CCI) SM active, passive and combined products are assimilated over

Flood inundation modelling across large data sparse areas has been increasing in recent years, driven by a desire to provide hazard information for a wider range of locations. The sophistication of these models has steadily advanced over the past decade due to improvements in remote sensing and modelling capability. There are now several global flood models (GFMs) that seek to simulate water surface

Ensemble forecasting applied to the field of hydrology is currently an established area of research embracing a broad spectrum of operational situations. This work catalogues the various pathways of ensemble streamflow forecasting based on an exhaustive review of more than 700 studies over the last 40 years. We focus on the advanced state of the art in the model‐based (dynamical) ensemble forecasting

Groundwater levels across parts of western Kansas have been declining at unsustainable rates due to pumping for agricultural irrigation despite water‐saving efforts. Accelerating this decline is the complex agricultural landscape, consisting of both categorical (e.g., management boundaries) and numerical (e.g., crop prices) factors that drive irrigation decisions, making integrated water budget management

Land surface water is a key component of the global water cycle. Compared to remote sensing by satellites, both temporal extension and spatial continuity are superior in modeling of water surface area. However, overall evaluation of models representing different kinds of surface waters at the global scale is lacking. We estimated land surface water area (LSWA) using the Catchment‐based Macro‐scale

Open‐bottom permeameters (OBP) are commonly used for estimating the hydraulic properties of sediment beds under water bodies and fluxes across the sediment‐water interface. The specific shape factor for an OBP flow situation is necessary for data interpretation. It is determined by the ratio of the permeameter tube radius to the tube's penetration depth within the sediment. Previous permeameter designs

Interaction of under‐ice physical, chemical, and biological processes with lake ice/snow cover is examined to better understand how changing winter climate may affect lake ecosystems. We derived under‐ice dissolved oxygen (DO) dynamics from high‐frequency observations and modified a widely used lake metabolism model by including the effect of freezing and thawing on DO concentration. Estimates were

ABSTRACT In 2013 the European Citizens’ Initiative (ECI) ‘Right2Water’ collected 1.9 million signatures across Europe against water privatization. It became the first ever successful ECI and has built a Europe-wide movement. Right2Water sought for Europe’s legal enforcement of the Human Right to Water and Sanitation (HRWS) as a strategic political tool to challenge European Union market policies. The

The microbial food web is an important part in aquatic ecosystem, but studies on the microbial food web in freshwater ecosystem, especially in freshwater eutrophic lakes, still need further investigation. In the present study, using eutrophic Lake Nanhu as model, the community changes of phytoplankton, zooplankton, and bacteria between the bloom and non-bloom period were analyzed, and microzooplankton

Mangroves provide multiple ecosystem services and are essential for mitigating global warming owing to their capacity to store large carbon (C) stocks. Due to widespread mangrove degradation, actions have been implemented to restore them worldwide. An important representative case in Colombia is the Ciénaga Grande de Santa Marta’s restoration plan. This management intervention focused on restoring

Effective regeneration of powdered activated carbon (PAC) is the key to reduce the operating cost of the PAC in wastewater treatment processes. In this study, volatile acetone and semi-volatile aniline were selected to investigate the regeneration characteristics of ultrasonically enhanced low-temperature thermal process. The results showed that the regeneration efficiency of the PAC that had adsorbed

The successful fish upstream movement through a dam/gate is closely associated with the hydraulic conditions of a fishway. To improve the passage efficiency, this study investigated the upstream swimming behaviors of juvenile grass carp, a representative fish of four major Chinese carps, under characteristic hydraulic conditions of a designed vertical slot fishway model. The impacts of different discharges

Enhanced water use efficiency (WUE) is the key to sustainable agriculture in arid regions. The installation of capillary barriers (CB) has been suggested as one of the potential solutions. CB effects are observed between two soil layers with distinctly different soil hydraulic properties. A CB helps retain water in the upper, relatively fine-textured soil layer, suppressing water losses by deep drainage

Preferential flow has an important role as it strongly influences solute transport in forest soil. The quick passage of water and solutes through preferential flow paths without soil absorption results in considerable water loss and groundwater pollution. However, preferential flow and solute transport under different infiltration volumes in southwestern China remain unclear. Three plots, named P20

At present, jet-grouted horizontal waterproof curtain reinforcement has become an essential method for deep foundation pit groundwater control. However, there is still a lack of an effective theoretical calculation method for horizontal waterproof curtain reinforcement, and there is little research on the seepage laws of foundation pits under different horizontal waterproof curtain conditions. Based

A series of experiments exploring the propagation of a solitary wave over a submerged step were performed using a flow-field visualization measurement system, an image-connection technique as well as model simulations. The experimental data were used to validate a one-layer finite-element non-hydrostatic model and a multi-layer finite-difference non-hydrostatic σ model for various submerged step configurations

In this study, the hydraulic characteristics of circular bottom intake orifices were investigated in a hydraulic model. The structure diverts the river‐flow to a hydroelectric power plant through circular orifices located at the bottom of the channel. In the model, a series of circular holes of various diameters and locations at the bottom of a channel in the form of single and multiple holes were

Antibiotic residues have entered into the environment owing to the unreasonable use and disposal of antibiotics. The emergence of antibiotic resistance poses a huge threat to ecosystems and human health. In this study, the network analysis method was used to compare publications on antibiotics in water, soil and sediment from the aspects of countries, institutes, journals, subject categories and keywords

A Correction to this paper has been published: https://doi.org/10.1007/s10040-021-02351-x

Biochar, a form of porous pyrogenic carbon, has been shown to influence soil physicochemical properties and increase crop yield. However, it is unclear whether biochar application at different rates will improve crop performance in a clay soil under drought conditions through increasing plant water uptake. Here, we examined performance of soybean after amendment with biochar (pyrolysed at ~400 °C for

Soil matric potential (SMP) is usually monitored by a tensiometer for managing irrigation in forest plantations, so determining where to install the tensiometer is important for improving irrigation efficiency. However, such work has never been conducted for border irrigation, which is commonly used in the intensive cultivation of forest plantations. In a border irrigated Populus tomentosa plantation

We describe an integrative approach to improve contiguity and haploidy of a reference genome assembly and demonstrate its impact with practical examples. With two novel features of Lep‐Anchor software and a combination of dense linkage maps, overlap detection and bridging long reads we generated an improved assembly of the nine‐spined stickleback (Pungitius pungitius) reference genome. We were able

We used long read sequencing data generated from Knightia excelsa, a nectar producing Proteaceae tree endemic to Aotearoa (New Zealand), to explore how sequencing data type, volume and workflows can impact final assembly accuracy and chromosome reconstruction. Establishing a high‐quality genome for this species has specific cultural importance to Māori and commercial importance to honey producers in

The contemporary effective population size Ne is important in many disciplines including population genetics, conservation science and pest management. One of the most popular methods of estimating this quantity uses temporal changes in allele frequency due to genetic drift. A significant assumption of the existing methods is the independence among loci while constructing confidence intervals (C.I

Simulation‐based methods such as Approximate Bayesian Computation (ABC) are well‐adapted to the analysis of complex scenarios of populations and species genetic history. In this context, supervised machine learning (SML) methods provide attractive statistical solutions to conduct efficient inferences about scenario choice and parameter estimation. The Random Forest methodology (RF) is a powerful ensemble

There is no evidence-based discussion on the intended and unintended global social impacts, such as changes in employment, of the European Union's (EU) transition towards the Circular Economy (CE). Consequently, its ethical implications are nebulous. Therefore, this paper assesses CE-induced global employment shifts using the example of the apparel value chains of apparel imported to the EU from the

Gravity‐driven infiltration into the shallow subsurface via small‐diameter wells (SDWs), i.e., wells with an inner diameter smaller than 7.5 cm (3 inches) and no gravel pack) has proven to be a cost‐efficient and flexible tool for managed aquifer recharge (MAR), as it provides relatively high recharge rates with minimal construction effort. SDWs have a significantly smaller open filter area than larger

We examine the implications of state water quality regulatory heterogeneity for waste and drinking water violations in the continental US using EPA data from 2007 to 2017. Using discrete regression analyses, we find some evidence that cumulative violations are higher when additional state water quality standards are introduced. However, one year after a new standard is implemented, cumulative violations

We extend single‐porosity flow diagnostics to dual‐porosity systems using a novel retardation factor R to account for the effect of fracture‐matrix transfer on breakthrough times and displacement efficiency during two‐phase flow in fractured reservoirs. R is based on an analytical solution for capillary‐driven fluid exchange between the fractures and rock matrix. By linearising R the time‐of‐flight

There is abundant literature about the impact of residential insulation on energy consumption using different methods. However, ex-post evaluation methods have not been used yet, which are helpful when the participants in a program are not chosen randomly. Therefore, this study performs the first ex-post evaluation of a residential insulation program using the “matching with differences-in-differences”

Groundwater availability, management and protection are great challenges for the sustainability of groundwater resources in the scattered rural areas of the Atlantic regions of Europe where groundwater is the only option for water supply. This report presents a hydrogeological study of the coastal granitic area of Oia in northwestern Spain, which has unique geomorphological and hydrogeological features

Developing rapid technologies that improve the food production industry with no harmful influence on the environment is a prime priority today. Agriculture is one of the most important sectors but it consume large amount of water. Agriculture soil especially arid and semi-arid soils have large pores due to this; plants have to face low water and fertilizer retention problem. Smart polymeric materials

Due to existing problems related to drip irrigation under the conditions of mulching and the vigorous promotion of soil covered drip irrigation without film, drip irrigation experiments were conducted in 2017 and 2018 in order to explore the mechanism of water conservation. Three different irrigation treatments were adopted in this study: high, middle, and low irrigation quotas. In addition, two different

In this paper, we modeled water trading in southern Alberta by incorporating irrigation technologies and crop choices. We consider six irrigation technologies and twelve crops with a variation in land quality to examine the adoption gains from water trading. The results are summarized to account for the gains from water trading and the probability of farmers switching to efficient irrigation technologies

High surface water‐groundwater connectivity characterizes watersheds underlain by karsts, increasing contaminant transport risks. However, karsts are highly complex, making research necessary to understand the transport of contaminants from the surface, through the aquifer, to discharge areas. In Yucatan, the lack of wastewater treatment raises the risk of groundwater contamination. We monitored stable

Spatial estimates of crop evapotranspiration with high accuracy from the field to watershed scale have become increasingly important for water management, particularly over irrigated agriculture in semi‐arid regions. Here, we provide a comprehensive assessment on patterns of annual agricultural water use over California’s Central Valley, using 30‐m daily evapotranspiration estimates based on Landsat

The flow of organic matter (OM) along rivers and retention within floodplains contribute significantly to terrestrial carbon storage and ecosystem function. The storage and cycling of OM largely depend upon hydrogeomorphic characteristics of streams and valleys, including channel geometry and the connectivity of water across and within the floodplain. To examine the role of river morphology on carbon

A two‐phase Bayesian model is presented for updating risk assessments for locations susceptible to infection by exotic pathogens. Human transportation from previously infected regions to uninfected regions is the main dispersal mechanism. Information embedded in patterns within the transportation flow are exploited in the update process. We explore the sensitivity of the model's outputs to changes

We present a discrete‐time predator–prey model in which the prey population is assumed to evolve in response to a toxicant. We incorporate frequency‐dependent selection into the prey evolution, assuming that an individual's susceptibility to predation depends on both the trait it possesses and the traits of others in the population. When frequency‐dependent selection is symmetric, we show that the

ABSTRACT This paper examines the inequity in irrigation distribution in India using a variant of Theil’s entropy measure for the period 1995–2010. The analysis reveals that the level of inequity in irrigation distribution has increased over time. Inequity has declined in canal, tank and well-irrigated systems and increased in the tube well-irrigated system. Decomposition analysis revealed that regional

ABSTRACT Limited water resources are among the main obstacles to development in Palestine. This research investigates farmers’ perceptions and willingness to use treated wastewater (TWW) for irrigation. Despite the availability of large quantities of TWW, just 11% of the interviewed farmers use it in irrigation. Just 24% of them confirmed that they had participated in awareness workshops related to

This paper reviews vapor intrusion modeling studies published in the last decade (2010–2020). Compared to research carried out in the late 1990s and the early 2000s that was mainly focused on basic vapor transport phenomena and attenuation in the subsurface, the topics addressed in recent years focused on more complex scenarios, including the blocking effect of building footprint and surface pavements

Contaminants of emerging concerns (CECs) spread across a wide range of organic product compounds. As biorecalcitrants, their removal from conventional wastewater treatment systems remains a herculean task. To address this issue, heterogenous solar driven advanced oxidation process based-TiO2 and other semiconductor materials has been extensively studied for their abatement from wastewater sources.

Quantitative data on observed flood ground effects are precious information to assess current risk levels and to improve our capability to forecast future flood damage, with the final aim of defining effective prevention policies and checking their success. This paper presents the first collection and analysis of flood damage claims produced in Italy in the past 7 years since a homogeneous national

Downstream migration (DSM) of larvae and fry is an important phase of the life cycle of fish as it allows them to disperse, and it increases the size and diversity of the populations via them extending rearing grounds, exchanging genes, and avoiding competition and cannibalism. Two numerous and diverse fish families of the Eurasian rivers, Cyprinidae and Percidae, are well adapted to the conditions

Integrated otolith chemistry and muscle tissue stable isotope analyses were performed to allocate juvenile Diplodus puntazzo and Diplodus vulgaris to nurseries in the Adriatic Sea. Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) was used to quantify the concentrations of chemical elements in the otoliths. Fish muscle samples were analysed for δ13C and δ15N. In general, Ba/Ca

The accurate forecast of air temperature plays an important role in water resources management, land–atmosphere interaction, and agriculture. However, it is difficult to accurately predict air temperature due to its non-linear and chaotic nature. Several deep learning techniques have been proposed over the last few decades to forecast air temperature. This study provides a comprehensive review of artificial

The paper presents the results of complex geoecological, hydrochemical and water-ecological studies of the mouth area of tributaries and shores of Lake Baikal at model sites. The mouth area of tributaries is in dynamic interaction with the receiving water body; chemical and biological accumulative and exchange processes directly affect the state of the Lake Baikal’s water resources. The study assessed

The soil environment contains a large, but historically underexplored, reservoir of biodiversity. Sequencing prokaryotic marker genes has become commonplace for the discovery and characterization of soil bacteria and archaea. Increasingly, this approach is also applied to eukaryotic marker genes to characterize the diversity and distribution of soil eukaryotes. However, understanding the properties

Biodiversity knowledge is widely heterogeneous across the Earth’s biomes. Some areas, due to their remoteness and difficult access, present large taxonomic knowledge gaps. Mostly located in the tropics, these areas have frequently experienced a fast development of anthropogenic activities during the last decades and are therefore of high conservation concerns. The biodiversity hotspots of Southeast

Driven by the EU 2019 low-carbon emission standard for automobile industry, gasoline car brands such as Fiat have considered either to (1) pay penalty or (2) cooperate with E-vehicle brands such as Tesla to “pool” their carbon emissions. These two strategies result in corresponding supply chain structures where the latter has co-operation relationship between automobile brands because the gasoline

A numerical study demonstrates the effects of flooding on subsurface hydrological flow paths and nitrate removal in anoxic groundwater in riparian zones with a top peat layer. A series of 2D numerical simulations with changing conditions for flow (steady state or transient with flooding), hydrogeology, denitrification, and duration of flooding demonstrate how flow paths, residence times, and nitrate