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Environmental Management

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https://www.readbyqxmd.com/read/28204868/specific-vicariance-of-two-primeval-lowland-forest-lichen-indicators
#1
Dariusz Kubiak, Piotr Osyczka
To date, the lichens Chrysothrix candelaris and Varicellaria hemisphaerica have been classified as accurate primeval lowland forest indicators. Both inhabit particularly valuable remnants of oak-hornbeam forests in Europe, but tend toward a specific kind of vicariance on a local scale. The present study was undertaken to determine habitat factors responsible for this phenomenon and verify the indicative and conservation value of these lichens. The main spatial and climatic parameters that, along with forest structure, potentially affect their distribution patterns and abundance were analysed in four complexes with typical oak-hornbeam stands in NE Poland...
February 15, 2017: Environmental Management
https://www.readbyqxmd.com/read/28197650/impact-assessment-and-environmental-evaluation-of-various-ammonia-production-processes
#2
Yusuf Bicer, Ibrahim Dincer, Greg Vezina, Frank Raso
In the current study, conventional resources-based ammonia generation routes are comparatively studied through a comprehensive life cycle assessment. The selected ammonia generation options range from mostly used steam methane reforming to partial oxidation of heavy oil. The chosen ammonia synthesis process is the most common commercially available Haber-Bosch process. The essential energy input for the methods are used from various conventional resources such as coal, nuclear, natural gas and heavy oil. Using the life cycle assessment methodology, the environmental impacts of selected methods are identified and quantified from cradle to gate...
February 14, 2017: Environmental Management
https://www.readbyqxmd.com/read/28190208/erratum-to-effectiveness-of-wyoming-s-sage-grouse-core-areas-influences-on-energy-development-and-male-lek-attendance
#3
R Scott Gamo, Jeffrey L Beck
No abstract text is available yet for this article.
February 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28188416/keystone-species-forest-and-landscape-a-model-to-select-protected-areas
#4
Daniela Barbosa da Silva Lins, Fernando Ravanini Gardon, João Frederico da Costa Azevedo Meyer, Rozely Ferreira Dos Santos
The selection of forest fragments for conservation is usually based on spatial parameters as forest size and canopy integrity. This strategy assumes that chosen fragments present high conservation status, ensuring biodiversity and ecological functions. We argue that a well-preserved forest fragment that remains connected by the landscape structure, does not necessarily hold attributes that ensure the presence of keystone species. We also discuss that the presence of keystone species does not always mean that it has the best conditions for its occurrence and maintenance...
February 10, 2017: Environmental Management
https://www.readbyqxmd.com/read/28180925/innovative-approaches-to-collaborative-groundwater-governance-in-the-united-states-case-studies-from-three-high-growth-regions-in-the-sun-belt
#5
Sharon B Megdal, Andrea K Gerlak, Ling-Yee Huang, Nathaniel Delano, Robert G Varady, Jacob D Petersen-Perlman
Groundwater is an increasingly important source of freshwater, especially where surface water resources are fully or over-allocated or becoming less reliable due to climate change. Groundwater reliance has created new challenges for sustainable management. This article examines how regional groundwater users coordinate and collaborate to manage shared groundwater resources, including attention to what drives collaboration. To identify and illustrate these facets, this article examines three geographically diverse cases of groundwater governance and management from the United States Sun Belt: Orange County Water District in southern California; Prescott Active Management Area in north-central Arizona; and the Central Florida Water Initiative in central Florida...
February 8, 2017: Environmental Management
https://www.readbyqxmd.com/read/28175929/resource-constrained-information-management-providing-governments-with-information-for-earthquake-preparedness
#6
Michael Vatenmacher, Shabtai Isaac, Tal Svoray
This study seeks to attain a better understanding of the information that is required by governments to prepare for earthquakes, and of the constraints they face in obtaining this information. The contributions of the study are two-fold. A survey that was conducted among those responsible for earthquake preparedness actions in different governmental agencies and at different levels revealed on the one hand a desire for information on a broad range of topics, but on the other hand that no resources were allocated in practice to gather this information...
February 7, 2017: Environmental Management
https://www.readbyqxmd.com/read/28160031/planning-for-the-maintenance-of-floristic-diversity-in-the-face-of-land-cover-and-climate-change
#7
Debbie Jewitt, Peter S Goodman, Barend F N Erasmus, Timothy G O'Connor, Ed T F Witkowski
Habitat loss and climate change are primary drivers of global biodiversity loss. Species will need to track changing environmental conditions through fragmented and transformed landscapes such as KwaZulu-Natal, South Africa. Landscape connectivity is an important tool for maintaining resilience to global change. We develop a coarse-grained connectivity map between protected areas to aid decision-making for implementing corridors to maintain floristic diversity in the face of global change. The spatial location of corridors was prioritised using a biological underpinning of floristic composition that incorporated high beta diversity regions, important plant areas, climate refugia, and aligned to major climatic gradients driving floristic pattern...
February 4, 2017: Environmental Management
https://www.readbyqxmd.com/read/28130557/livelihood-cycle-and-vulnerability-of-rural-households-to-climate-change-and-hazards-in-bangladesh
#8
G M Monirul Alam
Rural riverine households in Bangladesh are confronted with many climate-driven hazards, including riverbank erosion, which results in loss of productive land and other natural resources of the riverine households, and thus threatens their livelihoods and food security. This study assesses the main drivers of vulnerability and livelihood cycle of vulnerable riparian households in Bangladesh. The study utilises the IPCC framework of vulnerability and develops a weighted approach by employing the livelihood vulnerability index and the climate vulnerability index...
January 27, 2017: Environmental Management
https://www.readbyqxmd.com/read/28124092/a-word-to-the-wise-advice-for-scientists-engaged-in-collaborative-adaptive-management
#9
Peter Hopkinson, Ann Huber, David S Saah, John J Battles
Collaborative adaptive management is a process for making decisions about the environment in the face of uncertainty and conflict. Scientists have a central role to play in these decisions. However, while scientists are well trained to reduce uncertainty by discovering new knowledge, most lack experience with the means to mitigate conflict in contested situations. To address this gap, we drew from our efforts coordinating a large collaborative adaptive management effort, the Sierra Nevada Adaptive Management Project, to offer advice to our fellow environmental scientists...
January 25, 2017: Environmental Management
https://www.readbyqxmd.com/read/28110359/spatial-dependence-and-determinants-of-dairy-farmers-adoption-of-best-management-practices-for-water-protection-in-new-zealand
#10
Wei Yang, Basil Sharp
This paper analyses spatial dependence and determinants of the New Zealand dairy farmers' adoption of best management practices to protect water quality. A Bayesian spatial durbin probit model is used to survey data collected from farmers in the Waikato region of New Zealand. The results show that farmers located near each other exhibit similar choice behaviour, indicating the importance of farmer interactions in adoption decisions. The results also address that information acquisition is the most important determinant of farmers' adoption of best management practices...
January 21, 2017: Environmental Management
https://www.readbyqxmd.com/read/28110358/pollution-assessment-of-the-biob%C3%A3-o-river-chile-prioritization-of-substances-of-concern-under-an-ecotoxicological-approach
#11
Álvaro Alonso, Ricardo Figueroa, Pilar Castro-Díez
The water demand for human activities is rapidly increasing in developing countries. Under these circumstances, preserving aquatic ecosystems should be a priority which requires the development of quality criteria. In this study we perform a preliminary prioritization of the risky substances based on reported ecotoxicological studies and guidelines for the Biobío watershed (Central Chile). Our specific aims are (1) reviewing the scientific information on the aquatic pollution of this watershed, (2) determining the presence and concentration of potential toxic substances in water, sediment and effluents, (3) searching for quality criteria developed by other countries for the selected substances and (4) prioritizing the most risky substances by means of deterministic ecotoxicological risk assessment...
January 21, 2017: Environmental Management
https://www.readbyqxmd.com/read/28110357/the-potential-role-of-tree-diversity-in-reducing-shallow-landslide-risk
#12
Yuta Kobayashi, Akira S Mori
Recently, interest in utilizing ecosystems for disaster risk reduction has increased, even though there remains considerable uncertainty regarding the role of ecosystems in buffering against natural hazards. This ecosystem role can be considered an ecosystem service. Although a strong body of evidence shows that biodiversity enhances ecosystem services, there are only a few studies of the relationship between biodiversity and the role of the ecosystem in reducing the risk of natural disasters. To explore the desired state of an ecosystem for disaster risk reduction we applied the finding that biodiversity enhances ecosystem services to evaluate the role of woody vegetation in reducing the frequency and severity of shallow landslides...
January 21, 2017: Environmental Management
https://www.readbyqxmd.com/read/28101588/factors-controlling-sediment-load-in-the-central-anatolia-region-of-turkey-ankara-river-basin
#13
Umit Duru, Ellen Wohl, Mehdi Ahmadi
Better understanding of the factors controlling sediment load at a catchment scale can facilitate estimation of soil erosion and sediment transport rates. The research summarized here enhances understanding of correlations between potential control variables on suspended sediment loads. The Soil and Water Assessment Tool was used to simulate flow and sediment at the Ankara River basin. Multivariable regression analysis and principal component analysis were then performed between sediment load and controlling variables...
January 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28101587/factors-limiting-formation-of-community-forestry-enterprises-in-the-southern-mixteca-region-of-oaxaca-mexico
#14
José Antonio Hernández-Aguilar, Héctor Sergio Cortina-Villar, Luis Enrique García-Barrios, Miguel Ángel Castillo-Santiago
Many studies have considered community-based forestry enterprises to be the best option for development of rural Mexican communities with forests. While some of Mexico's rural communities with forests receive significant economic and social benefits from having a community forestry enterprise, the majority have not formed such enterprises. The purpose of this article is to identify and describe factors limiting the formation of community forestry enterprise in rural communities with temperate forests in the Southern Mixteca region of Oaxaca, Mexico...
January 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28091741/chemical-physical-and-biological-factors-shape-littoral-invertebrate-community-structure-in-coal-mining-end-pit-lakes
#15
Andreas Luek, Joseph B Rasmussen
Aquatic invertebrates form the base of the consumer food web in lakes. In coal-mining end-pit lakes, invertebrates are exposed to an environment with potentially challenging physical and chemical features. We hypothesized that the physical and chemical features of end-pit lakes reduce critical littoral habitat and thus reduce invertebrate diversity, thereby limiting the potential for these lakes to be naturalized. We used a multivariate approach using principle component analysis and redundancy analysis to study relationships between invertebrate community structure, habitat features, and water quality in five end-pit lakes and five natural lakes in the Rocky Mountain foothills of west-central Alberta, Canada...
January 13, 2017: Environmental Management
https://www.readbyqxmd.com/read/28091740/controlling-eutrophication-in-a-mediterranean-shallow-reservoir-by-phosphorus-loading-reduction-the-need-for-an-integrated-management-approach
#16
Mikel Zaragüeta, Pablo Acebes
Increased nutrient enrichment in Mediterranean standing waters has enhanced the risk of being affected by cyanobacterial blooms. Because phosphorus abatement is shaped as a crucial strategy for controlling eutrophication, this study introduces a structural thinking, experiential learning laboratory with animation dynamic model elaborated for Cazalegas Reservoir (Spain) to assess the feasibility of implementing a set of internal and external control measures and hydromorphological adjustments to meet the goal of oligotrophication...
January 13, 2017: Environmental Management
https://www.readbyqxmd.com/read/28078392/carbon-footprint-assessment-of-western-australian-groundwater-recycling-scheme
#17
Andrew Simms, Stacey Hamilton, Wahidul K Biswas
This research has determined the carbon footprint or the carbon dioxide equivalent (CO2 eq) of potable water production from a groundwater recycling scheme, consisting of the Beenyup wastewater treatment plant, the Beenyup groundwater replenishment trial plant and the Wanneroo groundwater treatment plant in Western Australia, using a life cycle assessment approach. It was found that the scheme produces 1300 tonnes of CO2 eq per gigalitre (GL) of water produced, which is 933 tonnes of CO2 eq higher than the desalination plant at Binningup in Western Australia powered by 100% renewable energy generated electricity...
January 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28078391/soil-organic-carbon-fractions-and-stocks-respond-to-restoration-measures-in-degraded-lands-by-water-erosion
#18
Xiaodong Nie, Zhongwu Li, Jinquan Huang, Bin Huang, Haibing Xiao, Guangming Zeng
Assessing the degree to which degraded soils can be recovered is essential for evaluating the effects of adopted restoration measures. The objective of this study was to determine the restoration of soil organic carbon under the impact of terracing and reforestation. A small watershed with four typical restored plots (terracing and reforestation (four different local plants)) and two reference plots (slope land with natural forest (carbon-depleted) and abandoned depositional land (carbon-enriched)) in subtropical China was studied...
January 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28078390/group-development-and-integration-in-a-cross-disciplinary-and-intercultural-research-team
#19
Naomi Kirk-Lawlor, Shorna Allred
Cross-disciplinary research is necessary to solve many complex problems that affect society today, including problems involving linked social and environmental systems. Examples include natural resource management or scarcity problems, problematic effects of climate change, and environmental pollution issues. Intercultural research teams are needed to address many complex environmental matters as they often cross geographic and political boundaries, and involve people of different countries and cultures. It follows that disciplinarily and culturally diverse research teams have been organized to investigate and address environmental issues...
January 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28078389/responses-of-a-federally-endangered-songbird-to-understory-thinning-in-oak-juniper-woodlands
#20
Ashley M Long, Mike E Marshall, Michael L Morrison, K Brian Hays, Shannon L Farrell
Wildlife conservation and management on military lands must be accomplished in the context of military readiness, which often includes ground-based training that is perceived to conflict with wildlife needs and environmental regulations. From 2008‒2012, we examined territory density, pairing success, and fledging success of the federally endangered golden-cheeked warbler (Setophaga chrysoparia; hereafter warbler) in relation to removal of small-diameter trees from the understory of mature oak-juniper (Quercus-Juniperus) woodland at the 87,890 ha Fort Hood Military Reservation in central Texas...
January 11, 2017: Environmental Management
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