Stream Channel and Riparian Zone Rehabilitation in the Dauphin Lake Watershed, Manitoba

Abstract An extensive program of drain construction, stream channelization and diversion, begun in the early 1900s, expanded the area of cultivated, arable land within the Dauphin Lake basin. The developed drainage network altered flows, shortened natural streams, eliminated aquatic habitats, and caused channel erosion. The Stream Rehabilitation Program was developed in 1992 to rehabilitate riparian zones and unstable stream reaches within the seven major tributaries of the watershed. The rehabilitation strategy included stream condition assessments, improvement of the channel stability and aquatic habitats by reintroducing pool and riffle sequences, and involvement of landowners in the design and implementation of their on-farm riparian rehabilitation plans. Between 1993 and 1996, 36 km of straightened channels were rehabilitated using pool and riffle sequences, and 14 cooperating livestock producers implemented new farm layouts and practices. Under a signed stewardship agreement, landowners committed to maintain the project works and a minimum 10-m riparian corridor for at least 10 years. The Stream Rehabilitation Program has been adopted as a model for other watershed level management programs throughout Manitoba. The program has raised public awareness of fisheries, wildlife, recreation, agriculture and land stewardship issues.

Download Full-text

The Spatiotemporal Variations of Suspended Sediment Concentration in Le’an River Catchment of Poyang Lake Basin

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.610-613.1099 ◽

2012 ◽

Vol 610-613 ◽

pp. 1099-1102 ◽

Cited By ~ 2

Author(s):

Zhen Wang ◽

Qi Zhang ◽

Xiu Li Xu ◽

Hai Ying Gao

Keyword(s):

Suspended Sediment ◽

Poyang Lake ◽

Arable Land ◽

Sediment Concentration ◽

Average Concentration ◽

Lake Basin ◽

Rainfall Events ◽

River Catchment ◽

Poyang Lake Basin ◽

Different Seasons

Suspended sediment (SS) is one of the important parameters quantifying the degree of water pollution. In order to explore the spatiotemporal variation of the SS in Le’an river catchment, an important sub-catchment of Poyang lake basin, a total of 17 sampling points at rivers were selected for observations. Results show that, the concentration of SS is quite different across the catchment. The average concentration of SS in the upstream of the catchment with forest as the dominant land use, is 6.92mg/L, while the concentration in the downstream with a certain percentage of arable land is 14.39mg/L. The SS concentration shows an increasing trend from the upstream to the downstream, in correlation with the change of land uses. Also there exists a considerable deviation of the SS concentration in different seasons. The concentration in summer is relatively high, while lower in other seasons, with a likely relationship to rainfall events.

Download Full-text

Transport of biogenes in the Szeszupa fluvial-limnic system in the Suwalski Landscape Park

Limnological Review ◽

10.2478/limre-2013-0004 ◽

2013 ◽

Vol 13 (1) ◽

pp. 31-42

Author(s):

Elżbieta Jekatierynczuk-Rudczyk

Keyword(s):

Trophic State ◽

Arable Land ◽

Anthropogenic Activity ◽

Lake Basin ◽

Ecological State ◽

Slight Effect ◽

Summer Period ◽

River Continuum ◽

River Catchment ◽

Continuum Concept

AbstractTransport of biogenic matter along the course of the Szeszupa River in the Suwalski Landscape Park (SLP) occurs in accordance with the river continuum concept. Only TP concentration decreases along the river’s course. TP and TOC concentrations classify the Szeszupa River to the moderate ecological state. The ecological state of three lakes (Linówek, Pogorzałek, and Perty) in the Szeszupa River catchment was estimated as very good. The remaining lakes, due to high TP concentrations, belong to the moderate state. The management of the catchment affects the amount of biogenic matter supplied to the Szeszupa River. The highest proportion of forests in the Jaczniówka River catchment clearly results in a decrease in the amount of biogenes in the river. The remaining partial catchments, with a higher proportion of arable land, meadows, and pastures, provide higher amounts of bioelements. The loads of bioelements stored in lakes in the summer period are determined by the size of the lakes (surface area of a lake and volume of water accumulated in the lake basin). This directly suggests a lack of anthropogenic activity in the catchments or the very slight effect of it on the lakes’ ecological and trophic state.

Download Full-text

The sustainable arable land use pattern under the tradeoff of agricultural production, economic development, and ecological protection—an analysis of Dongting Lake basin, China

Environmental Science and Pollution Research ◽

10.1007/s11356-017-0132-x ◽

2017 ◽

Vol 24 (32) ◽

pp. 25329-25345 ◽

Cited By ~ 12

Author(s):

Guanyi Yin ◽

Liming Liu ◽

Xilong Jiang

Keyword(s):

Land Use ◽

Economic Development ◽

Agricultural Production ◽

Arable Land ◽

Dongting Lake ◽

Lake Basin ◽

Land Use Pattern ◽

Ecological Protection ◽

Production Economic ◽

Arable Land Use

Download Full-text

Perception of Ecosystem Services in Constituting Multi-Functional Landscapes in Slovakia

Land ◽

10.3390/land9060195 ◽

2020 ◽

Vol 9 (6) ◽

pp. 195 ◽

Cited By ~ 1

Author(s):

Peter Bezák ◽

Peter Mederly ◽

Zita Izakovičová ◽

Milena Moyzeová ◽

Magdaléna Bezáková

Keyword(s):

Ecosystem Services ◽

Environmental Planning ◽

Landscape Planning ◽

Public Awareness ◽

Arable Land ◽

Crucial Component ◽

Local Stakeholders ◽

Regulatory Instruments ◽

Matrix Assessment ◽

Study Sites

Landscape provides many services for human wellbeing through its mosaic of ecosystems. Although different landscape spatial structures limit some access to these services for local residents, their demand for landscape benefits creates a crucial component in landscape planning. Herein, we evaluate the ecosystem service supply from landscape structures in four different areas of Slovakia and we identify the public preferences for these services. This evaluation was assisted by expert-based ecosystem services (ES) matrix assessment and feedback from experts and key local stakeholders. The associated land cover assessment revealed that although forests are the most important for ES delivery, followed by extensive agricultural mosaics, cultural services have the highest average supply value. In contrast, the experts and local stakeholders considered that provisioning services were the most important of all ES groups because of products available from arable land. The overall public awareness of benefits provided by nature proved relatively high, and this is a good sign for the development of multi-functional landscapes. The comparison of study sites revealed that even stakeholders living in intensively used land, with its overall low ES supply, assessed ES as very important in general. The general public could therefore be included in environmental planning to promote a more multi-functional landscape. In addition, the analysis herein will communicate gained insights to the local planners and decision-makers and confirm the importance of this ES participatory approach using top-down methodology. This may require the following measures in Slovakia: establishing an interdisciplinary group of experts for regular assessment of strategic landscape planning documents and regulatory instruments, developing key directives which establish well-balanced participatory procedures, improving open local government, and supporting down-scaled implementation of integrated landscape planning in cooperation with local action groups.

Download Full-text

Identifying Sources of Sulfate Aerosols Reaching Whiteface Mountain, NY

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117546 ◽

1985 ◽

Vol 43 ◽

pp. 98-101

Author(s):

James S. Webber

Keyword(s):

Trace Metals ◽

Acid Deposition ◽

Surface Waters ◽

Dry Deposition ◽

Coal Combustion ◽

Public Awareness ◽

Sulfate Aerosols ◽

Wet And Dry Deposition ◽

Whiteface Mountain ◽

Toxic Trace Metals

INTRODUCTION“Acid rain” and “acid deposition” are terms no longer confined to the lexicon of atmospheric scientists and 1imnologists. Public awareness of and concern over this phenomenon, particularly as it affects acid-sensitive regions of North America, have increased dramatically in the last five years. Temperate ecosystems are suffering from decreased pH caused by acid deposition. Human health may be directly affected by respirable sulfates and by the increased solubility of toxic trace metals in acidified waters. Even man's monuments are deteriorating as airborne acids etch metal and stone features.Sulfates account for about two thirds of airborne acids with wet and dry deposition contributing equally to acids reaching surface waters or ground. The industrial Midwest is widely assumed to be the source of most sulfates reaching the acid-sensitive Northeast since S02 emitted as a byproduct of coal combustion in the Midwest dwarfs S02 emitted from all sources in the Northeast.

Download Full-text

Considering the Language Disorder Label Debate From a School Speech-Language Pathology Lens

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_persp-19-00077 ◽

2020 ◽

Vol 5 (1) ◽

pp. 47-54

Author(s):

Kimberly A. Murza ◽

Barbara J. Ehren

Keyword(s):

Language Impairment ◽

Specific Language Impairment ◽

Language Disorder ◽

Public Awareness ◽

Developmental Language Disorder ◽

Speech Language Pathology ◽

Speech Language Pathologist ◽

School Based ◽

Language Pathology ◽

Education Act

Purpose The purpose of this article is to situate the recent language disorder label debate within a school's perspective. As described in two recent The ASHA Leader articles, there is international momentum to change specific language impairment to developmental language disorder . Proponents of this change cite increased public awareness and research funding as part of the rationale. However, it is unclear whether this label debate is worthwhile or even practical for the school-based speech-language pathologist (SLP). A discussion of the benefits and challenges to a shift in language disorder labels is provided. Conclusions Although there are important arguments for consistency in labeling childhood language disorder, the reality of a label change in U.S. schools is hard to imagine. School-based services are driven by eligibility through the Individuals with Disabilities Education Act, which has its own set of labels. There are myriad reasons why advocating for the developmental language disorder label may not be the best use of SLPs' time, perhaps the most important of which is that school SLPs have other urgent priorities.

Download Full-text

Use of Vestibular Rehabilitation in the Pediatric Population

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_pers-sig7-2019-0002 ◽

2019 ◽

Vol 4 (6) ◽

pp. 1399-1405 ◽

Cited By ~ 1

Author(s):

Jennifer Christy

Keyword(s):

Pediatric Population ◽

Dynamic Balance ◽

Vestibular Rehabilitation ◽

Rehabilitation Program ◽

Gross Motor ◽

Gaze Stabilization ◽

Motor Delay ◽

Rehabilitation Programs ◽

Motor Practice ◽

Balance Exercises

Purpose The purpose of this article was to provide a perspective on vestibular rehabilitation for children. Conclusion The developing child with vestibular dysfunction may present with a progressive gross motor delay, sensory disorganization for postural control, gaze instability, and poor perception of motion and verticality. It is important that vestibular-related impairments be identified early in infancy or childhood so that evidence-based interventions can be initiated. A focused and custom vestibular rehabilitation program can improve vestibular-related impairments, enabling participation. Depending on the child's age, diagnosis, severity, and quality of impairments, vestibular rehabilitation programs may consist of gaze stabilization exercises, static and dynamic balance exercises, gross motor practice, and/or habituation exercises. Exercises must be modified for children, done daily at home, and incorporated into the daily life situation.

Download Full-text