Whole Ecosystem Nitrogen Manipulation Experiments: A
... processes used in power production. UK emissions in 1999 amounted to 488 kt N. This figure has decreased significantly from the early 1990s, where emissions were estimated to be approximately 846 kt N (INDITE 1994). It has been forecast that, due to the penetration of catalysts into the road vehicle ...
... processes used in power production. UK emissions in 1999 amounted to 488 kt N. This figure has decreased significantly from the early 1990s, where emissions were estimated to be approximately 846 kt N (INDITE 1994). It has been forecast that, due to the penetration of catalysts into the road vehicle ...
Urea - Rebound Health
... solutions (in combination with ammonium nitrate: UAN), e.g., in 'foliar feed' fertilizers. For fertilizer use, granules are preferred over prills because of their narrower particle size distribution which is an advantage for mechanical application. The most common impurity of synthetic urea is biure ...
... solutions (in combination with ammonium nitrate: UAN), e.g., in 'foliar feed' fertilizers. For fertilizer use, granules are preferred over prills because of their narrower particle size distribution which is an advantage for mechanical application. The most common impurity of synthetic urea is biure ...
Guidelines for Canadian Drinking Water Quality
... Nitrate and nitrite are widespread in the environment. They are naturally produced by the oxidation of nitrogen by microorganisms and, to a lesser extent, by lightning. The most common sources of these substances are human activities, including agricultural activities, wastewater treatment, and disc ...
... Nitrate and nitrite are widespread in the environment. They are naturally produced by the oxidation of nitrogen by microorganisms and, to a lesser extent, by lightning. The most common sources of these substances are human activities, including agricultural activities, wastewater treatment, and disc ...
Waterbird Communities in the Murray
... series of floods and dry years and can provide some assessment of whether any significant trends exist that reflect impacts of development but also effects of ...
... series of floods and dry years and can provide some assessment of whether any significant trends exist that reflect impacts of development but also effects of ...
Document
... laboratory or most field experiments (Jax 2006; Post et al. 2007; Musacchio 2009). The various existing definitions of an ecosystem are able to describe the multifunctional nature of animal and plant communities only partially (Olff et al. 2009). Functions related to spatial and temporal variability ...
... laboratory or most field experiments (Jax 2006; Post et al. 2007; Musacchio 2009). The various existing definitions of an ecosystem are able to describe the multifunctional nature of animal and plant communities only partially (Olff et al. 2009). Functions related to spatial and temporal variability ...
Photocatalytic degradation of phenol in water solutions using ZnO
... phenol and phenolic compounds from saline wastewaters. High costs, low efficiency, and the generation of dangerous and toxic byproducts are among the factors which limit the use of some of these methods of removal.9 Recently, another technique called advanced oxidation has been used for the removal ...
... phenol and phenolic compounds from saline wastewaters. High costs, low efficiency, and the generation of dangerous and toxic byproducts are among the factors which limit the use of some of these methods of removal.9 Recently, another technique called advanced oxidation has been used for the removal ...
bc grasslands stewardship guide.indd
... more than land covered with grass. They are a network of interacting habitats including open deciduous forest stands, open evergreen forest stands, shrubby areas, wetlands, stream corridors, rocky cliffs and grassy areas. Distinguished from other North American grasslands by the wide variety of biol ...
... more than land covered with grass. They are a network of interacting habitats including open deciduous forest stands, open evergreen forest stands, shrubby areas, wetlands, stream corridors, rocky cliffs and grassy areas. Distinguished from other North American grasslands by the wide variety of biol ...
dolines - Routledge
... sink into the limestone. The recharge is centripetal, converging on the inlier, and so focuses solutional attack with the result that closed depressions are formed at such sites. Consequently, such depressions can be considered to be point recharge depressions. The floors of these dolines are usuall ...
... sink into the limestone. The recharge is centripetal, converging on the inlier, and so focuses solutional attack with the result that closed depressions are formed at such sites. Consequently, such depressions can be considered to be point recharge depressions. The floors of these dolines are usuall ...
Eutrophication - The Open University
... Nutrient enrichment occurs through addition of sediment, rainfall and the decay of resident animals and plants and their excreta. Starting from an oligotrophic state with low productivity, a typical temperate lake increases in productivity fairly quickly as nutrients accumulate, before reaching a st ...
... Nutrient enrichment occurs through addition of sediment, rainfall and the decay of resident animals and plants and their excreta. Starting from an oligotrophic state with low productivity, a typical temperate lake increases in productivity fairly quickly as nutrients accumulate, before reaching a st ...
Full text in pdf format
... and for nitrogen fractions that differed in their availability to decomposers. Total nitrogen and carbon were measured by a Perlun-Elmer C:H:N analyzer. Values are expressed as g nitrogen remaining per 100 g initial ash free dry weight (AFDW) of detritus. This is a measure of the pool of nitrogen th ...
... and for nitrogen fractions that differed in their availability to decomposers. Total nitrogen and carbon were measured by a Perlun-Elmer C:H:N analyzer. Values are expressed as g nitrogen remaining per 100 g initial ash free dry weight (AFDW) of detritus. This is a measure of the pool of nitrogen th ...
Cranes: Symbols of Survival 2013
... is governed by an international Board of 30 Directors, and has an advisory board drawn from 12 countries. As we have worked to solve threats to the cranes, ICF has found that these charismatic birds inspire actions to resolve conservation challenges that matter deeply to all people, such as water se ...
... is governed by an international Board of 30 Directors, and has an advisory board drawn from 12 countries. As we have worked to solve threats to the cranes, ICF has found that these charismatic birds inspire actions to resolve conservation challenges that matter deeply to all people, such as water se ...
SOLID WASTE MANAGEMENT: NEW TRENDS IN LANDFILL DESIGN
... To move into the twenty-first century in solid waste management and deal with the increasing fraction of solid waste going to landfills, the various regulatory agencies must try to develop a new strategy to optimize the use of existing landfills and prolong the life of any new ones. In the past 10 y ...
... To move into the twenty-first century in solid waste management and deal with the increasing fraction of solid waste going to landfills, the various regulatory agencies must try to develop a new strategy to optimize the use of existing landfills and prolong the life of any new ones. In the past 10 y ...
Cultivation-based and molecular approaches to characterisation of
... This molecular approach has significant advantages for analysis of ammonia oxidiser communities. Most importantly, analysis can be carried out without enrichment and isolation of pure cultures, thereby removing the major problems discussed above. In addition, acquisition of sequence data is more rap ...
... This molecular approach has significant advantages for analysis of ammonia oxidiser communities. Most importantly, analysis can be carried out without enrichment and isolation of pure cultures, thereby removing the major problems discussed above. In addition, acquisition of sequence data is more rap ...
Habitat Stewardship Series
... groundwater and then typically dry by summer’s end. Other pools follow a similar pattern, but fill with rain in autumn, hold water all winter and spring, and then dry out by late summer. The annual drying cycle of vernal pools makes them different from other wetlands and plays a key role in determinin ...
... groundwater and then typically dry by summer’s end. Other pools follow a similar pattern, but fill with rain in autumn, hold water all winter and spring, and then dry out by late summer. The annual drying cycle of vernal pools makes them different from other wetlands and plays a key role in determinin ...
Modeling and Optimizations of Phosphate Removal from Aqueous
... Synthetic zeolite Na-A was prepared from Egyptian kaolinite by hydrothermal treatment to be used as an adsorbent for removal of phosphate from aqueous solutions. The present work deals with the application of response surface methodology (RSM) and central composite rotatable design (CCRD) for modeli ...
... Synthetic zeolite Na-A was prepared from Egyptian kaolinite by hydrothermal treatment to be used as an adsorbent for removal of phosphate from aqueous solutions. The present work deals with the application of response surface methodology (RSM) and central composite rotatable design (CCRD) for modeli ...
Wang_Natural zealots as effective absorbents
... functionalisation, making the modified zeolites achieving higher adsorption capacity for organics and anions. © 2009 Elsevier B.V. All rights reserved. ...
... functionalisation, making the modified zeolites achieving higher adsorption capacity for organics and anions. © 2009 Elsevier B.V. All rights reserved. ...
Extract from EPA Batneec Guidance Note For The Extraction of
... represents the requirements expected of any new activity covered by the Note, but does not exclude additional requirements which may form part of the granting of a licence for a specific site. The approach to be used in selecting BATNEEC is based on the following hierarchy: ...
... represents the requirements expected of any new activity covered by the Note, but does not exclude additional requirements which may form part of the granting of a licence for a specific site. The approach to be used in selecting BATNEEC is based on the following hierarchy: ...
CHAPTER ONE INTRODUCTION 1.1 Heavy metals pollution in
... exchange into soils and muds, heavy metal pollutants can localize and lay dormant. The metal industries mainly discharge chromium trivalent (Cr3+) while chromium hexavalent (Cr6+) in industrial wastewater mainly originates from tanning and painting activities. The high demand for Cr usage is because ...
... exchange into soils and muds, heavy metal pollutants can localize and lay dormant. The metal industries mainly discharge chromium trivalent (Cr3+) while chromium hexavalent (Cr6+) in industrial wastewater mainly originates from tanning and painting activities. The high demand for Cr usage is because ...
Southern Pacific Coast Regional Shorebird Plan
... agricultural and urban development over the past two centuries. Ongoing urban development is highly likely to remain an agent of habitat loss, especially in agricultural lands of the Central Valley. In this region, changes in cropping patterns – such as from rice to cotton or from cattle grazing to ...
... agricultural and urban development over the past two centuries. Ongoing urban development is highly likely to remain an agent of habitat loss, especially in agricultural lands of the Central Valley. In this region, changes in cropping patterns – such as from rice to cotton or from cattle grazing to ...
Manure Liquid-solid Separation Factors That Determine System
... separation can supply the lower-solids-content liquid to irrigation systems that use small diameter, plug-prone nozzles. Lengthen interval between sludge cleanout of liquid treatment systems. Inconvenient and expensive de-sludging operations can be postponed by using settling tanks or other simple ...
... separation can supply the lower-solids-content liquid to irrigation systems that use small diameter, plug-prone nozzles. Lengthen interval between sludge cleanout of liquid treatment systems. Inconvenient and expensive de-sludging operations can be postponed by using settling tanks or other simple ...
Tempo Ultra WP - Backed By Bayer
... disconnect aerators when applying indoors where such containers are present. Drift and runoff from treated areas may be hazardous to aquatic organisms in neighboring areas. Apply this product only as specified on this label. To protect the environment, do not allow pesticide to enter or run off into ...
... disconnect aerators when applying indoors where such containers are present. Drift and runoff from treated areas may be hazardous to aquatic organisms in neighboring areas. Apply this product only as specified on this label. To protect the environment, do not allow pesticide to enter or run off into ...
RMIT Bundoora: Wetland Management Plan
... The study area is located within the RMIT campus at the corner of Plenty Road and Mc Kimmies Road, Bundoora (Figure 1), approximately 18 km north-east of the Melbourne central business district. The proposed lecture theatre development site is located within an area previously cleared of all remnant ...
... The study area is located within the RMIT campus at the corner of Plenty Road and Mc Kimmies Road, Bundoora (Figure 1), approximately 18 km north-east of the Melbourne central business district. The proposed lecture theatre development site is located within an area previously cleared of all remnant ...
Freshwater Aquatic Biomes
... between a lake and its upland surroundings, are seldom seen in nature. We simplify because it helps us to understand, and it is useful as long as we do not forget that our models are simplifications. Clearly all surface water (and much groundwater as well) is part of the Earth’s hydrologic cycle (se ...
... between a lake and its upland surroundings, are seldom seen in nature. We simplify because it helps us to understand, and it is useful as long as we do not forget that our models are simplifications. Clearly all surface water (and much groundwater as well) is part of the Earth’s hydrologic cycle (se ...
Understanding Soil Phosphorus - Integrated Pest and Crop
... in soil, water and all living organisms. It is one of 16 essential elements for plant growth. Standing vegetation, both native vegetation and agricultural crops, can be a source of P in runoff. Researchers have noted alfalfa, grasses, and crop residues to be contributors of P contained in spring run ...
... in soil, water and all living organisms. It is one of 16 essential elements for plant growth. Standing vegetation, both native vegetation and agricultural crops, can be a source of P in runoff. Researchers have noted alfalfa, grasses, and crop residues to be contributors of P contained in spring run ...
Ultrasound Assisted Method to Increase the Aluminum Dissolve
... pH stabilized at less than two. According to Fig. 1, in the initial stage of the addition of acid, the acid reacted with the alkaline carbonate, rapidly reducing the pH. When pH the dropped below three, then the acid initiated the dissolution mechanisms reacting with aluminum and other metal hydroxi ...
... pH stabilized at less than two. According to Fig. 1, in the initial stage of the addition of acid, the acid reacted with the alkaline carbonate, rapidly reducing the pH. When pH the dropped below three, then the acid initiated the dissolution mechanisms reacting with aluminum and other metal hydroxi ...
Constructed wetland
A constructed wetland (CW) is an artificial wetland created for the purpose of treating anthropogenic discharge such as municipal or industrial wastewater, stormwater runoff. It may also be created for land reclamation after mining, refineries, or other ecological disturbances such as required mitigation for natural areas lost to a development.Constructed wetlands are engineered systems that use natural functions of vegetation, soil, and organisms to treat different water streams. Depending on the type of wastewater that has to be treated the system has to be adjusted accordingly which means that pre- or post-treatments might be necessary.Constructed wetlands can be designed to emulate the features of natural wetlands, such as acting as a biofilter or removing sediments and pollutants such as heavy metals from the water. Some constructed wetlands may also serve as a habitat for native and migratory wildlife, although that is usually not their main purpose.The two main types of constructed wetlands are subsurface flow and surface flow wetlands. The planted vegetation plays a role in contaminant removal but the filter bed, consisting usually of a combination of sand and gravel, has an equally important role to play.