Showing papers in "Ecological Engineering in 2007"

TL;DR: In this article, the effect of temperature, hydraulic residence time (HRT), vegetation type and porous media material and grain size on the performance of horizontal subsurface flow (HSF) constructed wetlands treating wastewater, five pilot-scale units of dimensions 3.m in length and 0.75m in width were operated continuously from January 2004 until January 2006 in parallel experiments.

TL;DR: In this article, the effect of roof slope on green roof stormwater retention was analyzed from 12 extensive green roof platforms constructed at four slopes (2, 7, 15, and 25%).

TL;DR: In this paper, the authors describe the stormwater retention potential and runoff water quality of a lightweight aggregates (LWA)-based greenroof in Estonia and compare it with a modified bituminous membrane roof.

TL;DR: A constructed wetland for the treatment of agricultural wastewater from a 150-cow dairy operation in this watershed was monitored in its eighth operating season to evaluate the proportion of total nitrogen (TN) (approximated by total Kjeldahl nitrogen (TKN) due to low NO 3 − ) and total phosphorus (TP) removal that could be attributed to storage in Typha latifolia L. as mentioned in this paper.

TL;DR: Wang et al. as mentioned in this paper investigated the effects of shrub canopy on soil properties, organic litter, seed bank and understory herbaceous community properties in the Horqin Sand Land, Mongolia.

TL;DR: Generally, tree competition significantly reduced photosynthetic radiation (PAR), net assimilation (NA), and growth and yield of individual soybean or corn plants growing nearer to tree rows in both years and soil moisture was significantly correlated with soybeans yield in 1998.

TL;DR: Zhang et al. as mentioned in this paper presented a typical case of successful efforts in ecological restoration and desertified land reclamation of oasis-desert ecotone, and some successful techniques including established straw checkerboards and planting drought-tolerant indigenous shrubs, leveling sand dunes and drawing water for irrigation, closing dunes for grass reservation were carried out in 1975.

TL;DR: In this paper, the effect of flooding frequency on seasonal denitrification rates in two created riverine wetlands in the Midwest USA receiving controlled hydrologic pulses was investigated using the in situ acetylene block technique; sampling plots were distributed in a longitudinal gradient.

TL;DR: In this article, the authors investigated the impact of vegetation mat fertilization on stormwater quality and substrate nutrient storage and plant uptake following fertilisation of vegetation mats, shoot-established vegetation systems and unvegetated substrate using three levels of fertiliser applied as either controlled release fertiliser (CRF), or as a combination of CRF and conventional fertilizer.

TL;DR: In this article, an integrated modelling approach to simulate and assess ecological effects of physical habitat changes in rivers is presented, in particular the effect of weir removal on habitat suitability for bullhead (Cottus gobio L.) was simulated.

TL;DR: In this article, a comparison between nitrogen and phosphorus removal rates by area-based and biomass-based calculation using various kinds of aquatic plants (18 emergent and 3 floating plants) was made to investigate the removal of high nutrient contents from polluted water.

TL;DR: In this paper, two agroforestry systems were established on reclaimed mine sites in NE-Germany (Lusatia) and Central Germany (Helmstedt) and the yield potential and the sustainability of yields were studied for different clones of poplar (Populus spp), willow (Salix viminalis L), and black locust (Robinia pseudoacacia L), considering different rotation periods (3, 6-, and 9-year rotationation) and approaches of soil amelioration (mineral fertiliser, compost)

TL;DR: In this article, gas emissions (CO2, CH4, N2O) were studied in situ from the treatment bed of a constructed wetland with horizontal subsurface flow planted with Phragmites australis.

TL;DR: A survey of the systems treating urban wastewater in Spain revealed that over 80% of subsurface-flow constructed wetlands have been built over the last 5 years, horizontal systems (HF-CW) alone or in combination with other unit processes such as ponds being the most widespread type as mentioned in this paper.

TL;DR: Results of experiments proved that the process of partial-nitrification with ANAMMOX can be realized in constructed wetlands and can obtain higher removal efficiency of total nitrogen than conventional methods.

TL;DR: In this paper, the role of the macrophyte Phragmites australis (Cav.) ex Steud in experimental temporarily flooded vertical-flow wetland filters treating urban runoff was assessed.

TL;DR: In this paper, a biophysical model called "Yield-SAFE" was developed to predict long-term yields for the different systems and local statistics and expert opinion were used to derive their revenue, costs, and pre- and post-2005 grant regimes.

TL;DR: Filtralite P ® and shellsand as ideal constructed wetland substrates have been tested for their P sorption capacity, both with batch and column experiments as mentioned in this paper, and the results from both the batch and the column experiment suggest that the shellsand has a more durable P-sorption capacity than the FiltralITE P ® material, possibly due to the persistent high concentrations of Ca in the shells and.

TL;DR: In this paper, the growth of ryegrass in soils amended with 5-100% composted sewage sludge (CSS) was studied, and the impacts of CSS amendment on soil physical and chemical properties.

TL;DR: In this article, a model for growth, resource sharing and productivity in agroforestry systems was developed to act as a tool in forecasts of yield, economic optimization of farming enterprises and exploration of policy options for land use in Europe.

TL;DR: In this paper, the effects of major operational factors on the performance of vertical-flow pilot-scale constructed wetlands (VFPCWs) were examined in parallel experiments, where medium-strength synthetic sewage was applied as influent.

TL;DR: In this paper, the authors report on the removal of chemical contaminants, indicator organisms, and opportunistic pathogens from domestic greywater using the recycled vertical flow bioreactor (RVFB) system.

TL;DR: In this paper, the influence of hydroseeding a commercial seed mixture on the revegetation of uranium mine wastes under a semi-arid Mediterranean climate in West-Central Spain was examined.

TL;DR: In this paper, the transformation characteristics of sedimentary phosphate in a wastewater stabilization pond are studied and the adsorption and release potential under different pH and E h conditions is investigated.

TL;DR: In this paper, the authors examine the possibilities for improved land management in Western Australia arising from the development of carbon sinks by considering: (a) the likelihood of a carbon market developing and the likely depth of that market as a result of current national and international policies, (b) the data available to provide estimates on different types of

TL;DR: In this article, the results pertaining to the adsorptive studies carried out on fluoride removal using waste fungal biomass (Pleurotus ostreatus 1804) derived from laccase fermentation process were presented.

TL;DR: In this article, the purification efficiency and mass removal of organic material, suspended solids, nitrogen and phosphorus in a hybrid constructed wetland (CW) system treating wastewater from a basic school in Paistu, Estonia were analyzed.

TL;DR: Wang et al. as mentioned in this paper conducted a study on future restoration work in the Sanyang wetland, a degraded permanent river wetland that is close to the center of Wenzhou city, China.

TL;DR: In this paper, hydrological, successional, and water-quality dynamics are documented for a whole-ecosystem study involving a 3-ha created riparian wetland at the Schiermeier Olentangy River Wetland Research Park at The Ohio State University in Columbus, Ohio, USA, during 2003 and 2004.

TL;DR: In this article, the authors compare pre-and post-fire nutrient pools and fluxes and find that the pre-fire pools will not be made up for until trees are re-established at the Gondola fire, whereas N losses could more than make up for within 20 years if Nfixing vegetation colonized the site.