watershed Articles
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Integrating multicriteria analysis and geographic information systems: the ordered weighted averaging (OWA) approach
The ordered weighted averaging (OWA) is a family of multicriteria combination (aggregation) procedures. The generality of OWA is related to its capability to implement different combination operators by selecting appropriate order weights. By specifying suitable order weights it is possible to change the form of aggregation from the minimum-type combination through all intermediate types ...
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Effects of sea level rise on hydrology: case study in a typical mid-Atlantic coastal watershed
Sea level rise (SLR) can negatively affect the hydrology of coastal watersheds. However, the relevant information is incomplete and insufficient in existing literature. The objective of this study is to present a modeling approach to predict long-term effects of SLR on changes of flood peak, flood stage, and groundwater table with an assumption that the historical climate would reoccur in the ...
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Regional risk assessment of the Puyallup River Watershed and the evaluation of low impact development in meeting management goals
The Relative Risk Model (RRM) is a tool used to calculate and assess the likelihood of effects to endpoints when multiple stressors occur in complex ecological systems. In this study, a Bayesian network was used to calculate relative risk and estimate uncertainty (BN‐RRM) in the Puyallup River Watershed. First, we calculated the risk of prespawn mortality of coho salmon. Second, we evaluated ...
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Connecting local environmental knowledge and land use practices: A human ecosystem approach to urbanization in West Georgia
Issues of urban sprawl and migration of exurban residents into the surrounding countryside of metropolitan areas have generated considerable debate across the US. These debates often revolve around the ecological footprint of urban areas and the erosion of quality of life indicators associated with rapid expansion of urban and residential areas. Although there has been much research done on the ...
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Development of a web application for Low Impact Development Rapid Assessment (LIDRA)
This paper describes the development of a database and a website to support the newest version of Low Impact Development Rapid Assessment (LIDRA) model, LIDRA 2.0, a planning level model for assessing the cost-effectiveness of low impact development (LID) and addressing runoff-related problems in urban watersheds. LIDRA 2.0 is a web-based application that generates stochastic precipitation data ...
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A theoretical basis for green growth
This paper proposes a theoretical model of green growth. The paper analyses the development mechanisms through which natural resource capital regenerates (or at least does not degrade), is preserved and contributes to economic growth. Climate change is a threat to human civilisation and countries need to save natural resources, which are a crucial form of productive capital in the economy, and ...
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Sustainable waters and a new grammar of earthly compassion: an impressionistic report on The Columbia River Watershed: realities and possibilities
Since the publication of Lynn White's seminal article in 1967, the Christian religious tradition in the West has been labelled strongly anthropocentric in relation to the world of nature. The recent dissemination of the Catholic bishop's reflection on the Columbia River watershed in preparation for a pastoral letter can be read as an official response to this genre of criticism. By adopting a ...
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Robust weighted regression as a downscaling tool in temperature projections
Downscaling models are developed using robust version of locally weighted regression smoothing scatter plots technique (LOWESS) regression approach for obtaining projections of mean monthly maximum and minimum temperatures (Tmax and Tmin) to Pichola watershed in an arid region in India. Variable Importance in the Projection (VIP) score from Partial Least Squares (PLSs) regression is used to ...
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Sustainable natural resource management through multi-regional cooperation
Management of natural resources has clear implications for local, national, and supranational territorial units because of diverse and fundamental implications linked to how and where they are managed. There is a strong need to go beyond local, regional or even national administrative borders, redesigning new geographical areas and starting cross-border cooperative actions for more sustainable ...
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A Framework for Assessing Cumulative Effects in Watersheds: An Introduction to Canadian Case Studies
From 2008 to 2013, a series of studies supported by the Canadian Water Network were conducted in Canadian watersheds in an effort to improve methods to assess cumulative effects. These studies fit under a common framework for watershed cumulative effects assessment (CEA). This paper presents an introduction to the Special Series on Watershed CEA in Integrated Environmental Assessment and ...
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Performance-based incentives for agricultural pollution control: identifying and assessing performance measures in the United States
Current federal and state soil and water conservation programs consist primarily of cost-sharing or compensating farmers for implementing a set of pre-defined best management practices. This approach does not consider specific environmental outcomes or the cost-effectiveness of the program at the farm or watershed level. Performance-based incentives are payments that are attached to a specified ...
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Designing a relational database for tracking and analysis of atmospheric deposition of mercury and trace metals in the Pensacola (Florida) Bay Watershed
The need to track and analyse the atmospheric deposition of mercury and trace metals in the Pensacola (Florida) Bay Watershed in recent years has resulted in the need for a data management system that will allow data to be efficiently stored, checked for errors, manipulated, retrieved for analysis and shared within the research community. In this paper, we describe a relational database that was ...
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Assessing the impacts of climate change on water resources in the Srepok watershed, Central Highland of Vietnam
The Srepok watershed in the Central Highland of Vietnam plays an important role in the economic development of the region. Any harmful effects of climate change on natural resources may cause difficulties for social and economic development in this area. The present study aims to predict and evaluate changes of water resources in the Srepok watershed under the impact of climate change ...
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Valued ecosystem components for watershed cumulative effects: An analysis of environmental impact assessments in the South Saskatchewan River watershed, Canada
The accumulating effects of human development are threatening water quality and availability. In recognition of the constraints to cumulative effects assessment (CEA) under traditional environmental impact assessment (EIA), there is an emerging body of research dedicated to watershed‐based cumulative effects assessment (WCEA). To advance the science of WCEA, however, a standard set of ecosystem ...
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Post-validation of SWAT model in a coastal watershed for predicting land use/cover change impacts
Watershed models are typically calibrated and validated with the same land use and land cover (LULC) dataset and later used in assessing impacts of changing LULC, such as urbanization, on hydrology and/or water quality. However, their performance in predicting water quality/quantity in response to changing LULC is rarely assessed. The main objective of this paper was to explore the ...
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Analysis of the citizen's participation concept used by local decision makers: the case of the Aysen watershed in southern Chile
Citizen participation has become a commonly used term in political speeches in the last two decades, especially in relation to sustainable development and the environment. Indeed, several documents related to environmental management propose that the best alternative is through all citizens' participation. However, participation may have different meanings for different people. In this context, ...
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Long-term environmental impact assessment of agricultural land transition – a comparative case study
Agriculture is often blamed to be a leading source of water environment degradation. However, a fundamental question: ‘Would the reduction of agricultural activities lead to the recovery of water environment?’ remains insufficiently explored. The present work addressed this issue through a comparative study on two watersheds where agricultural policy was shifted from promotion to ...
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Input-output model based ecological risk assessment for ecological risk management of watersheds: a case study in the Taihu Lake watershed, China
To achieve advanced watershed ecological management, policy-makers have struggled to predict ecological impacts for a long time. As a process of ecosystem analysis, ecological risk assessment (ERA) has been widely adopted to analyse the possibility of adverse ecological effects. ERA has developed from considering only a few indicators in an area to multiple sources and receptors in ...
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Scale, assessment components and reference conditions: Issues for cumulative effects assessment in Canadian watersheds
Recent years have witnessed an increase in the use of watershed‐based cumulative effects assessment (WCEA) in Canada; however, several challenges remain regarding its effective implementation and execution. Fundamental to WCEA is the establishment of linkages between environmental stressors and particular and measurable components of the aquatic environment. There are dynamic and often ...
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Temporal variations of runoff in a rapidly urbanizing semi-arid Chinese watershed
Rapid urbanization on streamflows may directly affect or be restricted by the sustainability of local water resources. This is particularly true for arid/semiarid areas such as the Wulanmulun River watershed in the rapidly-developing Ordos region of north central China. From 1997 to 2012, the gross domestic product (GDP) of the region increased fifty-fold, while the urban area grew by a ...
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