Salt marshes are ecologically and globally vital ecosystems. Unfortunately, world-wide salt marsh loss has been extensive, and until recently there has been little effort to undo the loss of ~30,500 ha of salt marshes in Bay of Fundy, Canada, since European colonization. To better understand salt marsh restoration in the upper Bay of Fundy, we monitored sediment deposition and community dynamics in

The expansion of livestock industry resulted to larger waste production and pollutant deposition in the natural environment. Advanced treatment systems for treating wastewater and discharges from livestock areas are necessary to reduce the pollutant loads in receiving water bodies. This study mainly focused on evaluating the effectiveness of a livestock constructed wetland in treating composite wastewater

Rapidly increasing population pressure and land conversion from forests to urban and agricultural uses have been important stressors on coastal wetlands. Headwater wetlands in the southeast U.S. are particularly vulnerable because of their small size- they are easily filled or impacted through ditching, piping or impoundments. Since headwater areas have a disproportionately high influence on watershed

Lake Riogrande II, located in the central region of the Colombian Andes, has eutrophication due to a progressive increase of runoff pollution from upstream intensive dairy cattle and agricultural activities in the watershed. Public and private entities have invested in programs aimed at adopting the best agricultural management practices (BMP). BMP is a general formulation of recommended criteria and

In this study, we investigated effectiveness induced by the installation of groynes in river for protection of stream and restoration of ecosystem in Korea. The effect of different designs in groyne including shapes (single-bar type and double –bar type), angles (45° and 135° to the stream flow), and intervals (1 m and 2 m between groynes) on topographic changes were examined in test bed. The topographic

In this study, we investigate the hydro-meteorological and hydro-geomorphological factors that influence the formation of wetlands in the doline. To this end, a set of ordinary differential equations are drawn to represent hydrological responses to hydro-meteorological forcings in wetland catchments and wetlands. The relative influence of hydro-meteorological forcings and hydro-geomorphological parameters

With the fast development of the nuclear industry, it is inevitable that a considerable amount of uranium (U) is discharged into the environment during mining, use, and disposal processes, which can result in serious radioactive contamination. In this study, the spherical β-cyclodextrin modified titanium dioxide (β-CD/TiO2) was prepared by a simple hydrothermal method for the capture of U(VI). The

Iron nanoparticles (KP-FeNPs) were successfully synthesized using Korla fragrant pear (Pyrus sinkiangensis Yu) peel extracts through a green synthetic method. The KP-FeNPs were characterized by TEM, SEM, XPS, XRD, and FTIR, and subsequently used to remove Cr(VI) from aqueous solutions. The KP-FeNPs were irregularly-shaped and ranged from 20 to 90 nm in size. Iron in the KP-FeNPs was mainly present

The present study described the nutrient removal efficiency of two multi-zone biofilters with different working time, eight vs two years, focusing in metabolic and genetic characteristics of microbial communities. They are known as sequential sedimentation-biofiltration systems (SSBSs) for the removal of nitrogen and phosphorus compounds in urban rivers. Nutrient removal performances for both SSBSs

Chemical fertilizers and pesticides used are currently increasing alongside the human population grew and agriculture spread, resulting in high nitrogen (TN) and phosphorus (TP) contents in farmland soil and the surrounding water-bodies. Fabricating economic but effective metal impregnated biochar, as a sorbent to remove inorganic pollutants from water, is important to prevent eutrophication. In the

Freshwater mussels are ecosystem engineers that provide important ecosystem functions and services, such as bio-filtration. A method for quantifying filtration capacity in rivers was developed and applied in a case study that estimated the loss in filtration services provided by invasive alien dreissenid mussels following a mass mortality event in the river Meuse in the Netherlands. Mass mortality

An effective biodiversity conservation in Protected Areas (PAs) requires that they are seen as part of larger ecosystems and that the ecological connectivity is maintained beyond PA administrative boundaries. The study of ecological processes that link PAs to their surrounding landscapes is thus of great importance to understand which actions should be implemented to promote inside-outside ecological

Woodchip denitrifying bioreactors mitigate nitrate loading from agricultural tile effluents. Biochar is considered as an amendment to woodchips. Research findings are contradictory regarding the effect of biochar on nitrate removal. The current study is aimed at investigating the effect of biochar on the removal of nitrate in denitrifying bioreactors. For this purpose, laboratory and field experiments

Water flow through hydroponic media beds has seldom been characterized, and little is understood about the effects of different substrate media and flow rates as they pertain to mixing within. The hydrodynamics of four hydroponic substrate media were assessed in a small-scale hydroponic media bed bioreactor using tracer tests and mixing tests. Four media commonly used in hydroponic media beds, including

Drought has been one of the most ominous natural hazards for the last century. However, it is a big challenge to identify the progression of drought, because, unlike other natural disasters, its progress is very slow. This study examined the impact of climate change on drought-related hydro-meteorological variables (precipitation, soil moisture, and streamflow) and drought propagation from meteorological

Light expanded clay aggregates (LECA) have been increasingly used as substrate material for constructed wetlands given their phosphate removal capacity, mechanical strength, hydraulic conductivity and their plant rooting and biofilm growth supporting structure. This review summarizes the current literature on LECA-based constructed wetlands. Removal performances for main wastewater parameters phosphate

The present study represents the application of a hybrid process to a pretreated real textile wastewater. Hybrid process includes electrocoagulation, adsorption, and photo Fenton- like oxidation methods. In our previous study, electrocoagulation (EC) method was investigated and the optimum conditions were determined. Nearly 35% total organic carbon (TOC), 18.6%, chemical oxygen demand (COD), 90% turbidity

The current study aims to form new prediction models to approximate the possible uptake of six heavy metals (HMs) (Cd, Cu, Fe, Ni, Pb and Zn) in Phragmites australis tissues, including stems, leaves and belowground tissues (BGT). Samples of different plant tissues from two populations with different ages and sediments were collected monthly during one growing season (January–December) from 9 sites

Functional ecology provides useful tools for selecting native species for rehabilitation purposes. Here, we evaluated a list of native tree and shrub species as candidates for use in waste pile rehabilitation in the Carajás National Forest, eastern Amazon, Brazil, to increase the diversity and stability of the reinstated communities. Native species lists were compiled from vegetation inventories performed

Multi-thread gravel-bed rivers in Europe have undergone distinctive changes in morphology related to progressive narrowing and incision during the last 100 years. In many cases, the post-effects of multi-thread channel transformations are associated with sediment deficits caused by channelization, damming, or land use changes. Similar trends of channel narrowing and incision can be observed in the

Commercial salt pans around the world act as important habitats for waterbirds due to their unique trophic and physical attributes. Today, most commercial salt pans in Taiwan have been decommissioned and many have been designated as protected wetland habitats. Due to the dike and water gate systems controlling water flow in the salt pan wetlands, water management plans are important for habitat maintenance

On China's Loess Plateau, where the distribution of soil organic carbon (soil − Corg) is mainly influenced by topography, afforestation is an important strategy to sequester carbon and reduce soil erosion. To explore the effects of topography on soil − Corg, soil samples were obtained at six depths (0–0.1 m, 0.1–0.2 m, 0.2–0.4 m, 0.4–0.6 m, 0.6–0.8 m, and 0.8–1.0 m) from locations on the Loess Plateau

Coppicing is a highly effective method of producing a great deal of fast growing, sustainable timber without the need for replanting. Tamarix chinensis, a native salt-tolerant species, plays an important role in the ecosystems of arid saline alkali soil and coastal wetlands in northern China. In this study, we conducted a coppicing field experiment on T. chinensis to study the vigor of resprouting

Despite the benefits of green roofs in managing urban stormwater quantity and quality, a number of studies have demonstrated that green roofs can pose negative impacts on the urban environment due to chemical leaching, in particular in their early age. Besides design variables such as growing media composition and depth, the roof age and hydro-meteorological variables are also expected to affect or

Many large-scale southwestern mountain rivers have intensive hydropower development in China, and it is difficult for the mainstream habitats to meet the needs of fish; thus, the replacement of tributary habitats has become an effective measure for river ecological protection. Appropriate ecological flow is an important tool used to repair fish habitats and plays an important role in the ecological

This study investigated pollutants (fluoride, chloride, nitrate, ammonia, phosphates, sulphate and total and volatile solids) removal efficiency from domestic wastewater and plant growth during 195 days in domiciliary constructed wetland (DCWs) microcosms. DCWs were planted with monoculture of Canna hybrid, Alpinia purpurata and Hedychium coronarium and polyculture of the same ornamental flowering

The extent of anthropogenic habitats that support species-rich assemblages of bees and wasps is poorly understood. In the present study, we identified a previously overlooked hotspot of bee and wasp (Hymenoptera: Aculeata) biodiversity that consists of bare loess exposed by anthropogenic activities, mostly in clay pits but also in slopes of sunken lanes or upper berms of sand pits. We examined the

Grazing exclusion (GE) is widely used in the Tibetan Plateau of China to restore degraded grasslands. However, the effects of GE on vegetation and soil properties in alpine meadows are still not well understood. We compared GE with adjacent continuously grazing alpine meadows at five sites to evaluate the impact of GE (10–14 years) on vegetation and soil properties in the permafrost region of the Tibetan

Restoring ecological services in agroecosystems can compensate for the negative effects associated with agricultural intensification. For example, disruption of natural pest suppression can be mitigated through habitat manipulation to attract beneficial arthropods and alter colonization by herbivores. We evaluated a push-pull habitat manipulation system for its potential to suppress Mexican bean beetle

In order to establish a sustainable stormwater management system, research has focused on Low Impact Development (LID) facilities. This study analyzed the runoff reduction efficiency and pollutant removal efficiency in Bioretention facilities. The results of the study were analyzed using long-term monitoring data over three years, and experiments were carried out using real rainfall and artificial

Supersaturated TDG problem has become a serious potential threat to aquatic life on dammed rivers. With the aim to mitigate the impact of supersaturated TDG and improve the fish shelter area, the optimal power generation operation of a hydropower station was explored. In order to consider the TDG mixing process of the tailwater and the spill discharge, a two-dimensional supersaturated TDG transport

Constructed wetlands (CWs) are engineered systems that are constructed to mimic natural wetlands. These systems simulate the processes that happen in natural wetlands and remove pollutants from wastewater. CWs have been previously used to treat a wide range of waste streams, including landfill leachate, and they have shown relatively good removal efficiencies. Although the literature on using CWs to

This study investigated the effects of hydraulic load and intermittent aeration on matrix oxygen concentration, COD removal, NH4+-N removal, TN removal, TP removal, greenhouse gases (GHGs) emission and functional gene abundances in wastewater ecological soil infiltration systems (WESISs). Intermittent aeration created aerobic conditions above 40 cm depth and did not change anaerobic conditions below

Soil active organic carbon responds quickly to soil disturbances and is a sensitive indicator of early changes in soil organic carbon (SOC). In order to identify the differences in the distribution of dissolved organic carbon (DOC), light fraction organic carbon (LFOC), SOC and their changes as affected by vegetation degradation degree along water gradient in wetland, we analyzed DOC, LFOC, and SOC

Urban treatment wetlands purify water and provide various ecological services such as food and habitat. We applied the sustainable structured wetland biotope (SSB) system, which considers site-specific ecological conditions and maximizes water purification efficiency, as a treatment wetland for non-point source pollution with short retention time and high biodiversity. This system is consisted of a

Ecological benefits and production of grassland on the Loess Plateau are limited by low soil N and P availability. Extraneous N and P fertilization is an efficient management measure to enhance grassland productivity and accelerate grassland restoration. However, biodiversity decline and species loss induced by N and P addition must be noticed. Two grassland communities dominated by tall clonal grass

Mining contributes significantly to the world's economy. However, it brings strong environmental impacts, including the destruction of the original vegetation. In this way, the recovery of degraded areas by mining has been a mandatory procedure in many countries. With the objective to review this subject, a bibliometric analysis was carried out using scientific articles published in the period 1990–2018

The Everglades Stormwater Treatment Areas (STAs) are large-scale freshwater wetlands constructed to reduce total phosphorus (TP) concentrations in runoff to support restoration of the Everglades. TP reduction and retention in STAs occurs through settling, plant growth and accumulation of dead plant material in a layer of peat. This study evaluated the performance of six treatment flow-ways in STA − 2

To ensure safety of drinking water and verify effectiveness of environmental protection, it is essential to monitor aquatic environmental quality of rivers regularly, alongside hydrological variables. However, routine surveillance without in-depth analysis may prove insufficient to elucidate the changes, which is established issues receiving much attention. This study aimed to identify the trend, seasonality

Adding wildflowers to arable lands is a tactic used to engineer agroecosystems to provide additional ecosystem services by attracting and supporting beneficial arthropods. Two studies were conducted to investigate the ability of wildflowers to influence populations of natural enemies. In the wildflower study, 24 early, mid and late season flowering species native to the USA Mid-Atlantic region were

Restoring invasion-resistant plant communities is critical for the successful control of invasive plant species. It is based on ecological principles, such as limiting similarity, and the diversity–invasibility hypothesis, which can be used to select optimal combinations of species and determine appropriate plant density for the effective suppression of invasion due to propagule pressure. However,

Soil is an essential component supporting the growth and maintenance of forests, providing anchorage, water, and nutrients for a diversity of plants. In Canada's boreal forest, surface soils differ widely in their chemical and physical conditions, ranging from coarse to fine textured mineral soils in the uplands to organic soils in the lowlands. Industrial disturbances in the boreal region require