Author: riverlab

Changing Channels Workshop

A review and discussion of the science of stream restoration in the Russian River Watershed

January 26, 2018, 8:30 am-5 pm

Cloverdale Citrus Fairgrounds Auditorium, 1 Citrus Fair Drive, Cloverdale, CA

Topics

The geomorphic and watershed processes creating entrenched channels; limitations to riparian and aquatic habitat in entrenched channels; influences of historical developments on present day creek form and function; examples of restoration techniques that address entrenchment; and a discussion of the effects of recent fires on creeks.

Featured Speakers

Dr. Matt Kondolf & Dr. Doug Shields, Russian River Independent Science Review Panel

Drs. Lorraine & Alan Flint, Climate Scientists, USGS

Dr. Brian Cluer, NOAA

Downloads

Workshop Flyer and Agenda

New Publication on Mekong Delta, free access until 15 February

A team of active researchers in the Mekong have published a paper, Changing sediment budget of the Mekong: Cumulative threats and management strategies for a large river basin, available for free downloads until 15 February.

Abstract
Two decades after the construction of the first major dam, the Mekong basin and its six riparian countries have seen rapid economic growth and development of the river system. Hydropower dams, aggregate mines, flood-control dykes, and groundwater-irrigated agriculture have all provided short-term economic benefits throughout the basin. However, it is becoming evident that anthropic changes are significantly affecting the natural functioning of the river and its floodplains. We now ask if these changes are risking major adverse impacts for the 70 million people living in the Mekong Basin. Many livelihoods in the basin depend on ecosystem services that will be strongly impacted by alterations of the sediment transport processes that drive river and delta morpho-dynamics, which underpin a sustainable future for the Mekong basin and Delta.

Drawing upon ongoing and recently published research, we provide an overview of key drivers of change (hydropower development, sand mining, dyking and water infrastructures, climate change, and accelerated subsidence from pumping) for the Mekong’s sediment budget, and their likely individual and cumulative impacts on the river system. Our results quantify the degree to which the Mekong delta, which receives the impacts from the entire connected river basin, is increasingly vulnerable in the face of declining sediment loads, rising seas and subsiding land. Without concerted action, it is likely that nearly half of the Delta’s land surface will be below sea level by 2100, with the remaining areas impacted by salinization and frequent flooding. The threat to the Delta can be understood only in the context of processes in the entire river basin. The Mekong River case can serve to raise awareness of how the connected functions of river systems in general depend on undisturbed sediment transport, thereby informing planning for other large river basins currently embarking on rapid economic development.

Human-River Interactions in Cities

ISRivers Conference Session

With the explosion of urban waterfront revitalization projects in the developed world, it is timely to reflect on the relations between cities and their rivers: how the rivers influenced development of the cities, how cities have treated their riverfronts over time, and how the spatial relations of city and river constrain and enable improved connectivity between urban populations and their rivers.  This topic will be explored in a session in the upcoming conference ISRivers in Lyon, France, 4-8 June 2018.  IS Rivers, held every three years, is an interesting mix of researchers and practioners, from Europe and beyond.  The setting in Lyon is particularly good for our topic, as the ‘reconquest’ of the banks of the Rhone is a compelling story of returning river banks to ‘the people’ (in this case, from their former use as parking lots).

Human-River Interactions in Cities: Special Issue in Sustainabilty

Editors: G. Mathias Kondolf, Amir Gohar, and Yves-François LeLay

Most cities are located on rivers, and for very good historical reasons that included navigation/commerce, fisheries, water supply, waste disposal, and quotidian uses such as washing clothes. The identities and distinctive characteristics of many cities are closely tied to their rivers, and the many ways their residents interact with their urban waters. In recent decades, urban riverfront projects have become ubiquitous in the developed world, and increasingly promoted in the developing world. Both celebrated as revitalizing neglected urban centers and criticized for displacing the disenfranchised populations, these projects raise questions about what constitutes ‘restoration’ in the urban context, to what degree natural processes and ecological values can be restored in such contexts, and how sustainable ecological benefits will be in light of the urban context. In highly dense cities, the social benefits of restoration likely overshadow the potential ecological benefits. Moreover, attempts to transplant waterfront restoration approaches from a successful application in one city to another with different characteristics commonly fail when the diversity of fluvial process, form, and culture is not adequately accounted for. We invite your contributions to this special issue exploring these rich human-river interactions in the urban environment.

 

Sediment Management for dams in the Andes

Vicente Tinoco published a report on his summer research in countries that cross the Andes and look to harvest hydropower. "The Andes have one of the largest soil erosion rates in the world...siltation problems [in dams] are already event."

 

13th Annual Berkeley River Restoration Symposium

Saturday 09 December 2017
Wurster Hall Auditorium, Rm 112, UC Berkeley

Registration | Please register by Friday 12/03 so we can supply sufficient programs and coffee!

Codornices Creek

PROGRAM

830a Registration

900a Welcome and Introduction by Zan Rubin

910a Keynotes

Urban streaming: cities, storms, and ecosystems flow into the future
Robin Grossinger, Senior Scientist, San Francisco Estuary Institute

Putting the episodic in restoration planning
Barry Hecht, Senior Principal, Balance Hydrologics

1000a Graduate Student Research

Where is it going? A checkup on the sediment wave in Redwood Creek following Restoration
Garshaw Amidi-Abraham, Dana Lapides, Suwon Noh

Revisiting Engineered Wood Structures: Lagunitas Creek, Marin County, CA
Holly Callahan, Hana Moidu, Daisy Schadlich, Nam Anh Nguyen

Can Wetland Restoration Beat Land Subsidence in the Delta? How climate change, infrastructure, carbon markets, and ecology come together in central Sacramento-San Joaquin Delta wetland restoration projects
Celina Balderas Guzman

1045 Coffee Break

1115 Graduate Student Research

Balancing Flood Risk and Riparian Habitat: Vegetation Recruitment in Channel-Armoured Reaches of the Guadalupe River Park
Annaliese Chapa and Derek Lazo

Post-project assessment of Codornices Creek: conflicts between urban creek restoration objectives versus aesthetic preferences
Hanqing Zhao and Xiaowei Liu

A soft engineering approach to high-gradient step-pool design
Willis Logsdon, Nimisha Wasankar, Sooyeon Yi

Thermal Refugia: Restoring Thermal Habitat for Pacific Salmon
George Greer

Examining the Effects of Beaver (Castor canadensis) Activity on a High Sierra Meadow Restoration Project
Kieran Locke, Dasha Pechurina, Andrew Salmon

1230p Discussion, Responses, Questions

Barry Hecht, Robin Grossinger

100p Adjourn

Sponsored by Department of Landscape Architecture and Environmental Planning, UC Berkeley

Upcoming AGU Poster on Sooyeon’s ‘Master Middle Ware’ tool

 

Sooyeon Yi is presenting a poster at the American Geophysical Union (AGU) Annual Meeting in New Orleans.

“Master Middle Ware: A Tool to Integrate Water Resources and Fish Population Dynamics Models” will be posted during session H11C: Connecting Environment, Technology, and Society: Decision Support Tools for Built Environments 2.

She will present on Monday 11 December 2017 between 8:00a to 12:20p. Check her poster out!

Green Infrastructure Posters at State of Estuary Conference in Oakland, CA

Jennifer Natali, Anneliese Sytsma and Ari Frink (MLA '17) shared their work on Green Infrastructure and Contra Costa County's Fifty-Year Plan at the State of the Estuary Conference in Oakland, CA on October 10-11, 2017. 

To address the problem of aging flood control infrastructure and eventual need for facility replacement, they are defining a framework for identifying opportunities to integrate multi-functional green infrastructure into existing suburban development in Walnut Creek Watershed. 

Their poster cluster presented three major perspectives of this effort:  1. Restoration of Aquatic Ecosystems, 2. Infiltration Suitability Mapping, and 3. Land Use Planning and Policy.