Author: Emily RothPublisher:
ISBN:
Category : Wetland conservation
Languages : en
Pages : 184
Book Description
Oregon Freshwater Wetland Assessment Methodology
Author: Emily RothPublisher:
ISBN:
Category : Wetland conservation
Languages : en
Pages : 184
Book Description
Developing a Framework for the Oregon Wetland Monitoring and Assessment Program
Author: Publisher:
ISBN:
Category : Biological monitoring
Languages : en
Pages : 51
Book Description
A Two-tiered Approach to Regional Freshwater Wetland Assessment in New England
Author: The Wetlands Handbook, 2 Volume Set
Author: Edward MaltbyPublisher: John Wiley & Sons
ISBN: 9781444315820
Category : Technology & Engineering
Languages : en
Pages : 800
Book Description
Forty-two chapters by international experts from a wide range ofdisciplines make The Wetlands Handbook the essential toolfor those seeking comprehensive understanding of the subject. Adeparture from more traditional treatises, this text examinesfreshwater wetland ecosystem science from the fundamentals toissues of management and policy. Introductory chapters address the scope and significance ofwetlands globally for communities, culture and biodiversity.Subsequent sections deal with processes underpinning wetlandfunctioning, how wetlands work, their uses and values for humansand nature, their sensitivity to external impacts, and how they maybe restored. The text is illustrated by numerous examples,emphasising functional and holistic approaches to wetlandmanagement, including case studies on the wise use andrehabilitation of wetlands in farmed, urban, industrial and otherdamaged environments, highlighting the long-term benefits ofmultiple use. The Wetlands Handbook will provide aninvaluable reference for researchers, managers, policy-makers andstudents of wetland sciences.
Manual for the Oregon Rapid Wetland Assessment Protocol (ORWAP)
Author: Paul R. AdamusValue Assessment of Jackson-Frazier Wetland, Benton County, Oregon
Author: John Lee MarshallPublisher:
ISBN:
Category : Wetland ecology
Languages : en
Pages : 294
Book Description
A growing realization that wetlands are potentially valuable resources has recently stimulated efforts towards their protection. While a foundation for wetland management exists, decision makers still lack adequate tools for addressing issues of wetland preservation vs. development. Wetland preservation values are often neglected in traditional market analyses and in the decision making process. This research uses a wetlands assessment methodology that addresses non-market wetland values in the Willamette Valley, Oregon. The Jackson-Frazier Wetland, north of the Corvallis city limits, is used as a case study for assessment. The Larson Model, a tested assessment model for eastern Massachusetts wetlands, is applied to the Jackson-Frazier Wetland. The model is modified to increase its reproducibility in wetlands classification, accommodate regional differences in the study area, and account for recent information on wetland classification and value assessment. The Jackson-Frazier Wetland qualifies as a high priority site for further assessment under four of eleven criteria: 1. rare plants, 2. visually prominent plants, 3. availability of information, and 4. rare habitat types. The wetland received an adjusted wildlife habitat score of 89 percent (good to excellent) and an adjusted visual-cultural score of 66 percent (moderately good). The wildlife habitat score reflects a complex habitat mosaic spread over a sizable area supporting a diverse and relatively abundant fauna. The visual-cultural score reflects a visually complex landscape dominated by vegetation. The diversity of wetland types, the complex interspersion of wetland classes and subclasses, and the proximity of the wetland to educational institutions combine to offer a variety of visual, educational, and passive recreational opportunities. However, the lack of navigable water bodies, the lack of nearby visually prominent landforms, urban noise, and urban encroachment limit the number and quality of visual-cultural opportunities. The wetland was assessed for its downstream flood mitigation capability under two models with two respective adjusted flood mitigation scores of 967 and 69%. The second score is judged to be more consistent with findings of the Corvallis Drainage Master Plan suggesting the Jackson- Frazier site mitigates floods associated with "common" storm events (e.g., 12% return frequency). Neither flood assessment addresses flooding from the Willamette River during a 100 yearflood. In a separate economic analysis, publicly acquired nonwetland wildlife habitat and visual-cultural areas are used as gauge sites to provide a minimum monetary estimate of preservation values of the Jackson-Frazier Wetland. The derived figure of $ 2,022/acre is compared with several appraised market values of the wetland using preservation value/alternative use value ratios. Ratios greater than one indicate preservation values are greater than alternative use values. Borderline ratios are weighted towards preservation values due to the non-wetland character of the gauge sites. The greatest utility of the applied model is to display traditionally intangible wetland preservation values. This display of values should be considered by resource managers and decision makers in conjunction with a variety of other decision making tools. The validity of a given assessment is directly related to the assumptions and subsequent criteria used. Perceptions of validity are highly influenced by the degree of societal acceptance and use.
Summary of Oregon Source Water Assessment Methodology
Author: Julie HarveyFunctional Assessment of Freshwater Wetlands
Author: Joseph S. LarsonPublisher:
ISBN:
Category : Dew-ponds
Languages : en
Pages : 72
Book Description
"This manual is based on the authors' experience teaching the Wetland Assessment Training Course to employees of the Chinese National Environmental Protection Agency (CNEPA) at Nanchang, Jiangxi Province, October 1986 and at Tongliao, Inner Mongolian Autonomous Region, august 1987, Peoples Republic of China. the object of the course was to provide a basic introduction to freshwater wetlands, their functions and preliminary techniques by which to screen wetlands for potential functions. Minimal acquaintance with wetlands, as systems, was assumed and emphasis was put on functions important to subsistence economies and sustainable utilization. The manual is designed to be used by an instructor who has taken the course or who has had training in wetland functions and assessment. It is an outline on which not all of the concepts and procedures are fully developed. It is intended to serve as an instructional guide to course topics and organization, and a framework for student note taking, discussion, and as an aide to bridging a language barrier. We recommend that instructors use the books listed in section 11.0 as prime sources while instructing the course. We have drawn from them extensively."--Page ii
Manual for the Oregon Rapid Wetland Assessment Protocol (ORWAP)
Author: Paul R. AdamusPublisher:
ISBN:
Category : Wetlands
Languages : en
Pages : 70
Book Description
Author: