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You searched for: Journal Ecological engineering Remove constraint Journal: Ecological engineering Publication Year 2014 Remove constraint Publication Year: 2014 Source 2014 v.68 Remove constraint Source: 2014 v.68
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1. Bacterial diversity in response to direct revegetation in the Pb–Zn–Cu tailings under subtropical and semi-arid conditions

Author:
Li, Xiaofang; Huang, Longbin; Bond, Philip L.; Lu, Yang; Vink, Sue
Source:
Ecological engineering 2014 v.68 pp. 233-240
ISSN:
0925-8574
Subject:
Bacteroidetes; Rubrobacter; Thiobacillus; bacterial communities; carbon sinks; climatic factors; community structure; genes; land restoration; mine tailings; phylotype; phytoremediation; plant communities; plant establishment; ribosomal RNA; semiarid zones; sequence analysis; soil; soil microorganisms; species diversity; weathering; Queensland
Abstract:
... The development of soil microbial communities is essential for the sustainability of plant communities established for tailings phytostabilization. To explore the effect of revegetation on microbial diversity in mine tailings under subtropical and semi-arid climatic conditions (situated at north Queensland), community composition was compared in Pb–Zn–Cu tailings with and without revegetation. 16S ...
DOI:
10.1016/j.ecoleng.2014.03.044

2. Biosorption properties of pretreated sporopollenin biomass for lead(II) and copper(II): Application of response surface methodology

Author:
Şener, Murat; Reddy, D. Harikishore Kumar; Kayan, Berkant
Source:
Ecological engineering 2014 v.68 pp. 200-208
ISSN:
0925-8574
Subject:
aqueous solutions; copper; lead; models; biosorbents; response surface methodology; pH; Fourier transform infrared spectroscopy; sorption isotherms; sporopollenin; biosorption; biomass; metal ions
Abstract:
... The role of pretreated sporopollenin (PSp) biomass in M(II) (M=Pb, Cu) removal from aqueous solutions was investigated by batch biosorption technique. The chemical properties and morphology of the biosorbent were characterized by means of FT-IR and SEM-EDX techniques. Influence of various operating parameters like pH, contact time, biosorbent dose and initial concentration on biosorption process w ...
DOI:
10.1016/j.ecoleng.2014.03.024

3. Can vegetative filter strips efficiently trap trace elements during water erosion events? A flume experiment with contaminated sediments

Author:
Lambrechts, Thomas; de Braekeleer, Charlotte; Fautsch, Vincent; Iserentant, Anne; Rentmeesters, Guido; Lutts, Stanley; Bielders, Charles L.
Source:
Ecological engineering 2014 v.68 pp. 60-64
ISSN:
0925-8574
Subject:
Lolium perenne; Trifolium repens; arsenic; cadmium; clay; clay fraction; filter strips; lead; leaves; particle size; polluted soils; posture; sand fraction; sediment contamination; sediments; soil water; water erosion; water resources; zinc
Abstract:
... Soils polluted with trace elements can become sources of pollution for surrounding soil and water resources as a result of dispersion of contaminated soil particles by water erosion. Vegetative filter strips (VFS) implemented downstream of the source of pollution may be used to trap sediments and their associated contaminants. An experimental flume was designed in order to test the potential of Lo ...
DOI:
10.1016/j.ecoleng.2014.03.092

4. Comparison of physical characteristics between Rana latouchtii and Rana adenopleura using grey system theory and Artificial Neural Network

Author:
Chuang, Tsai-Fu; Chang, Yuan-Hsiou
Source:
Ecological engineering 2014 v.68 pp. 223-232
ISSN:
0925-8574
Subject:
Rana; ecosystem engineering; ecosystems; frogs; habitats; human development; lakes; neural networks; rivers; streams; Taiwan
Abstract:
... In recent years, the threat to amphibians is becoming more and more serious. It is generally known that the loss of habitats caused by changes to the way land is used by human beings has hit amphibians particularly hard. The construction of concrete banks along rivers associated with human development has become a serious problem in Taiwan. Most ecosystems used by amphibians are lakes and stream b ...
DOI:
10.1016/j.ecoleng.2014.03.038

5. Cost-effectiveness evaluation of model design variants of broad-base terrace in soil erosion control

Author:
Dumbrovský, Miroslav; Sobotková, Veronika; Šarapatka, Bořivoj; Chlubna, Libor; Váchalová, Radka
Source:
Ecological engineering 2014 v.68 pp. 260-269
ISSN:
0925-8574
Subject:
arable soils; case studies; cost effectiveness; erosion control; streams; terrace soils; terraces; urban areas; water erosion; watersheds; Czech Republic
Abstract:
... Soil erosion in the Czech Republic is a serious degradation process affecting more than 50% (about 1.5 million ha) of arable land, 80% of which is affected by water erosion. Soil degradation by water erosion and related impacts can be effectively limited by various types of soil erosion control measures. This study is a sensitivity analysis of the impact parameters of selected types of soil erosio ...
DOI:
10.1016/j.ecoleng.2014.03.082

6. Deformation measurements and a stability analysis of the slope at a coal mine waste dump

Author:
Cho, Yong-Chan; Song, Young-Suk
Source:
Ecological engineering 2014 v.68 pp. 189-199
ISSN:
0925-8574
Subject:
coal; deformation; dry season; monitoring; rain; rain gauges; safety factor; villages; wastes; water table; wet season; Korean Peninsula
Abstract:
... This study surveyed and investigated the deformation of the coal waste dump slope and the natural ground slope under the waste dump at Dogye village in Samcheock city, Gangwon Province, Korea. Multiple sets of south-north tension cracks were observed at the crest of the coal waste dump slope. These cracks were greater than 100m in length, and the resulting drop head averaged 1.0–1.5m. To investiga ...
DOI:
10.1016/j.ecoleng.2014.03.005

7. Developing water level regulation strategies for macrophytes restoration of a large river-disconnected lake, China

Author:
Zhang, Xiaoke; Liu, Xueqin; Wang, Hongzhu
Source:
Ecological engineering 2014 v.68 pp. 25-31
ISSN:
0925-8574
Subject:
macrophytes; life history; germination; hydrologic data; lakes; irrigation; equations; developmental stages; industry; flood control; shipping; China
Abstract:
... Natural water regime is important for the germination, growth and distribution of aquatic plants. In order to restore the macrophytes of the Chaohu Lake, field investigations were conducted in 2010–2012, hydrological data were also collected for analysis. The results showed that macrophytes of the Chaohu Lake have changed greatly after disconnection from the Yangtze mainstem, and the alteration of ...
DOI:
10.1016/j.ecoleng.2014.03.087

8. Drivers of success in 53 cutover bogs restored by a moss layer transfer technique

Author:
González, E.; Rochefort, L.
Source:
Ecological engineering 2014 v.68 pp. 279-290
ISSN:
0925-8574
Subject:
Polytrichum; Sphagnum; bogs; cluster analysis; drainage; landscape management; monitoring; mosses and liverworts; peat; peatlands; spring; summer; surveys; vegetation; Canada
Abstract:
... The moss layer transfer technique has been used since the 1990s to restore bogs in North America after peat extraction. This article assesses the influence of drainage-related, peat physicochemical, meteorological, management and landscape factors on the vegetation of extracted peatlands that have been restored in this manner. It draws upon data from a unique long-term monitoring programme coverin ...
DOI:
10.1016/j.ecoleng.2014.03.051

9. Effect of Eichhornia crassipes on production of N2 by denitrification in eutrophic water

Author:
Gao, Yan; Yi, Neng; Wang, Yan; Ma, Tao; Zhou, Qing; Zhang, Zhenhua; Yan, Shaohua
Source:
Ecological engineering 2014 v.68 pp. 14-24
ISSN:
0925-8574
Subject:
Eichhornia crassipes; denitrification; denitrifying microorganisms; eutrophication; genes; macrophytes; nitrogen; nitrous oxide; sediments; surface water
Abstract:
... The floating aquatic macrophyte may stimulate the gaseous nitrogen production via denitrificaiton in eutrophic water. In order to justify this hypothesis, an improved floating-chamber method was deployed to directly measure the productions of N2 and N2O from the eutrophic water with or without growth of Eichhornia crassipes. The abundance of denitrifiers attached to E. crassipes root surface and i ...
DOI:
10.1016/j.ecoleng.2014.01.002

10. Effects of an underground in situ pipe eco-farming system on mangrove bacterial communities in the Beilunhe Estuary, Guangxi, China

Author:
Zhang, Jiexiang; Lai, Tinghe; He, Yanyan; Yan, Bing; Zhang, Yubin; Fan, Hangqing
Source:
Ecological engineering 2014 v.68 pp. 65-71
ISSN:
0925-8574
Subject:
bacteria; bacterial communities; community structure; denaturing gradient gel electrophoresis; estuaries; pipes; polymerase chain reaction; seawater; sulfides; China
Abstract:
... The community structures of bacteria, the relationships between selected ecological factors and these communities in seawater were investigated in an underground in situ pipe eco-farming system including the underground pipes, the natural mangrove environment and the reservoir in mangroves of the Beilunhe Estuary, Guangxi, China. The seawater samples were collected on August, 1 (high tide), 8 (low ...
DOI:
10.1016/j.ecoleng.2014.03.093

11. Effects of biosolids on biodiesel crop yield and belowground communities

Author:
Adair, Karen L.; Wratten, Steve; Barnes, Anna-Marie; Waterhouse, Benjamin R.; Smith, Michael; Lear, Gavin; Weber, Paul; Pizey, Mark; Boyer, Stéphane
Source:
Ecological engineering 2014 v.68 pp. 270-278
ISSN:
0925-8574
Subject:
Brassica napus; Camelina sativa; arsenic; biodiesel; biomass; biosolids; chromium; community structure; copper; crops; earthworms; environmental impact; fuel production; fungal communities; heavy metals; lead; lipid content; mineral fertilizers; municipal wastewater; nickel; nutrients; oilseed crops; seed yield; soil; soil amendments; soil chemistry; soil microorganisms; soil quality; urea; wastewater treatment
Abstract:
... Biofuels are an attractive alternative for fossil fuels and demand is growing rapidly, however the environmental impacts of biofuel production must be minimized. Replacing conventional fertilizers with biosolids, processed solids from municipal wastewater treatment plants, has the benefit of utilizing a waste stream and avoiding some of the environmental impacts associated with conventional fertil ...
DOI:
10.1016/j.ecoleng.2014.03.083

12. Effects of continual burial by sediment on morphological traits and dry mass allocation of Suaeda salsa seedlings in the Yellow River estuary: An experimental study

Author:
Sun, Zhigao; Song, Hongli; Sun, Wenguang; Sun, Jingkuan
Source:
Ecological engineering 2014 v.68 pp. 176-183
ISSN:
0925-8574
Subject:
marshes; sediments; seedling growth; root systems; hypocotyls; vigor; seedlings; greenhouse experimentation; mortality; planting; coasts; estuaries; Suaeda; Yellow River
Abstract:
... Information on the effects of continual burial by sediment on seedling survival and morphological growth in coastal marsh remains scarce. A greenhouse experiment was conducted to determine the effects of continual burial on seedling mortality, growth and dry mass allocation of Suaeda salsa in the coastal marsh of the Yellow River estuary. The seeds were planted at 0.5cm depth in plastic pots fille ...
DOI:
10.1016/j.ecoleng.2014.03.021

13. Emergy assessment of tilapia cage farming in a hydroelectric reservoir

Author:
Garcia, F.; Kimpara, J.M.; Valenti, W.C.; Ambrosio, L.A.
Source:
Ecological engineering 2014 v.68 pp. 72-79
ISSN:
0925-8574
Subject:
Oreochromis niloticus; cages; emergy; environmental impact; farming systems; fish culture; models; nonrenewable resources; parks; public policy; renewable resources; stocking rate; surface water; water reservoirs; Brazil
Abstract:
... Considering that most of the energy supply in Brazil is derived from hydroelectric sources, the government has been strongly encouraging cage farming in federal water bodies. The government limited the aquaculture parks in hydroelectric reservoir to only 1% of its total area and, inside the parks, a ratio of 1:8 referring to the park and organic load dilution area. However, no objective evaluation ...
DOI:
10.1016/j.ecoleng.2014.03.076

14. Fate and distribution of arsenic in a process-designed pilot-scale constructed wetland treatment system

Author:
Schwindaman, Jeffrey P.; Castle, James W.; Rodgers, John H.
Source:
Ecological engineering 2014 v.68 pp. 251-259
ISSN:
0925-8574
Subject:
Typha latifolia; arsenic; constructed wetlands; coprecipitation; drinking water; groundwater; guidelines; iron; iron oxyhydroxides; sediments; sorption; sulfides; water quality
Abstract:
... The fate and distribution of arsenic in simulated groundwater was determined in a pilot-scale constructed wetland treatment system (CWTS) designed to promote specific biogeochemical processes for arsenic removal. Two CWTS series were designed to promote co-precipitation and sorption of arsenic with iron oxyhydroxides under oxidizing conditions, and two series were designed to promote precipitation ...
DOI:
10.1016/j.ecoleng.2014.03.049

15. Freshwater microalgae niche of air carbon dioxide mitigation

Author:
Ramaraj, Rameshprabu; Tsai, David Dah-Wei; Chen, Paris Honglay
Source:
Ecological engineering 2014 v.68 pp. 47-52
ISSN:
0925-8574
Subject:
air; biomass; carbon; carbon cycle; carbon dioxide; carbon dioxide fixation; carbon sinks; ecosystems; freshwater; microalgae
Abstract:
... The effectiveness of the niche of freshwater algae as a remover of carbon dioxide (CO2) from the ecosystem, and its potential to perpetuate carbon cycle are to be systematically investigated. In this study, using unsupplemented natural freshwater medium, we investigated the freshwater microalgal sequestration of atmospheric CO2 in the laboratory. The microalgal fixation of carbon, calculated by ma ...
DOI:
10.1016/j.ecoleng.2014.03.058

16. Furfural removal from liquid effluents by adsorption onto commercial activated carbon in a batch heterogeneous reactor

Author:
Cuevas, Manuel; Quero, Soledad Mateo; Hodaifa, Gassan; López, Alberto J. Moya; Sánchez, Sebastian
Source:
Ecological engineering 2014 v.68 pp. 241-250
ISSN:
0925-8574
Subject:
Gibbs free energy; activated carbon; activation energy; adsorbents; adsorption; agitation; enthalpy; entropy; furfural; industrial effluents; models; sorption isotherms; temperature
Abstract:
... Currently, the presence of furfural at low concentrations in different industrial effluents presents an environmental problem. In this work, the optimization of the main operating conditions of a batch heterogeneous reactor for furfural removal by adsorption onto commercial activated carbon were determined. In this sense, the effect of the commercial activated carbon concentration, operating tempe ...
DOI:
10.1016/j.ecoleng.2014.03.017

17. Geomorphology, habitat, and spatial location influences on fish and macroinvertebrate communities in modified channels of an agriculturally-dominated watershed in Ohio, USA

Author:
D’Ambrosio, Jessica L.; Williams, Lance R.; Williams, Marsha G.; Witter, Jonathan D.; Ward, Andrew D.
Source:
Ecological engineering 2014 v.68 pp. 32-46
ISSN:
0925-8574
Subject:
agricultural watersheds; biological assessment; correspondence analysis; drainage channels; environmental factors; fish; fish communities; floodplains; habitats; macroinvertebrates; statistical models; streams; variance; Ohio
Abstract:
... We evaluated relationships between in-stream habitat, spatial distribution, and geomorphic features at 28 study sites within a predominantly agricultural watershed in Ohio. Objectives were to: (1) measure and compare the physical structure and biotic communities of highly modified drainage channels to those of minimally impacted channels, (2) identify significant environmental factors influencing ...
DOI:
10.1016/j.ecoleng.2014.03.037

18. Influence of soil physical parameters on removal efficiency and hydraulic conductivity of vertical flow constructed wetlands

Author:
Bruch, I.; Alewell, U.; Hahn, A.; Hasselbach, R.; Alewell, C.
Source:
Ecological engineering 2014 v.68 pp. 124-132
ISSN:
0925-8574
Subject:
chemical oxygen demand; constructed wetlands; filters; hydraulic conductivity; lava; pipes; porosity; sand; surface area; wastewater; wastewater treatment; water distribution; zeolites; Germany
Abstract:
... Low cost filter materials for efficient waste water treatment in constructed wetlands are worldwide in demand. However, information on soil physical parameters needed for efficient treatment is scarce. We investigated 5 different lava and one fluviatile operating sand filters in Germany for their differences in pore size distribution spectra, specific inner surface area and cumulative pore volume. ...
DOI:
10.1016/j.ecoleng.2014.03.069

19. In situ soil respiration at reclaimed and unreclaimed post-mining sites: Responses to temperature and reclamation treatment

Author:
Bujalský, Luděk; Kaneda, Satoshi; Dvorščík, Petr; Frouz, Jan
Source:
Ecological engineering 2014 v.68 pp. 53-59
ISSN:
0925-8574
Subject:
Betula; biomass; carbon; carbon dioxide; chronosequences; coal; mining; planting; shade; soil pH; soil respiration; soil temperature; terrestrial ecosystems; Czech Republic
Abstract:
... Soil respiration accounts for much of the CO2 released from terrestrial ecosystems into the atmosphere. Although respiration depends on temperature, the relationship between respiration and temperature may vary among soils. Here, we measured soil respiration and soil temperature in chronosequences of reclaimed and unreclaimed post-mining sites (10–50-year-old coal mining heaps near Sokolov, the Cz ...
DOI:
10.1016/j.ecoleng.2014.03.048

20. Investigation of nutrient thresholds to guide restoration and management of two impounded rivers in south-western Australia

Author:
Novak, Peter A.; Chambers, Jane M.
Source:
Ecological engineering 2014 v.68 pp. 116-123
ISSN:
0925-8574
Subject:
Vallisneria; algal blooms; epiphytes; eutrophication; guidelines; hysteresis; lakes; macrophytes; managers; nitrogen content; phosphorus; phytoplankton; remediation; risk; rivers; spring; summer; Western Australia
Abstract:
... Hysteresis between macrophyte and phytoplankton dominant ecological regimes has been observed in shallow lakes between 50 and 150μg/L total phosphorus (TP). This paper explores the capacity of these thresholds, initially proposed for European systems, to guide management and the successful restoration of macrophytes in two eutrophic rivers, the Canning River and the Lower Vasse River in Western Au ...
DOI:
10.1016/j.ecoleng.2014.03.091