Critical Zone Observatories U.S. National Program
This year's annual CZO meeting was hosted by the Eel River CZO. CZO researchers toured the site's steep canyons, 65-meter Douglas Firs, and “blue-goo” argillite bedrock. Visitors were treated to a fast-paced and scientifically engaging set of presentations in the field by the Eel River team. The program highlighted the interactions at many levels between bedrock characteristics, hydraulic conductivity, the impact of trees on water transport and transmission of mechanical forces, aquatic algae and fish dynamics, soil water and stream geochemistry and more. It was fun, fast paced, and informative. Hats off to the Eel River team for managing the complex logistics well.

The meeting continued back at UC Berkeley to further discuss next steps for the CZO program. Among such discussion, Collin Bode reported on progress that the team of data managers has made on developing a collective CZO data system. This team has done a great job with limited time and resources, and we are hoping to grow that effort in the near future.
The devastation from Hurricane’s Irma, Harvey, and Maria has been felt from Texas to Puerto Rico. Bill McDowell has noted the extensive damage to the forests at Luquillo CZO. Fortunately, early reports are that much of CZO infrastructure withstood but more importantly, the CZO personnel are safe. The damage to Puerto Rico is severe and will take a long time and a lot of resources to overcome. Please consider donating funds or items to charity organizations focusing on these severely affected areas.
- Lou Derry
Director, CZO National Office

Land Use Legacies and Old-Field Succession Patterns in Deep Soil
Current Research Highlight

Zachary Brecheisen works to link land cover change and its effect on deep soil biogeochemistry at Calhoun Critical Zone Observatory. Large-scale agricultural abandonment due to soil erosion and the subsequent re-establishment of forests over the last 80-100 years typifies the landscape at the Calhoun CZO.

The succession of cotton fields to loblolly pines can have implications for microbial communities and their respiration deep in the Critical Zone. Although Zach will be completing his Ph.D. this academic year (and is on the market for a postdoctoral position), he aims to expand this research question across many CZOs. “Intensively Managed Landscape and Luquillo CZOs are locations I've long dreamt of continuing this CZ research," Zach notes.

We are comparing saturated hydraulic conductivity, soil moisture, soil invertebrates, and microbes down several meters in depth to see how soil ecology has responded to old-field succession.

Critical Zone Science in the News

"Voices of Fire" documentary features Reynolds Creek CZO
Filmmaker Hugo Sindelar was working at the Reynolds Creek CZO when wildfires broke out in 2015. His documentary shows the effects of wildfire on local stakeholders and the Critical Zone. 
Watch here
Changes in non-extreme precipitation may have not-so-subtle consequences
Susana Roque-Malo and Praveen Kumar (IML CZO) show that everyday precipitation events -- not just the extremes that have been the focus of most studies -- are changing. 
Read this news release

Special Report:
Hurricanes Irma & Maria affect Luquillo CZO

The catastrophic damage incurred in Puerto Rico as the result of recent hurricanes has affected the CZOs and our affiliates. Lead PI from Luquillo CZO, Bill McDowell, shares this message:

"Damage to many parts of the Luquillo Mountains from Hurricanes Irma and Maria was extensive, and much of the forest remains closed to the public as well as researchers. The left photo, courtesy of Dr. Grizelle Gonzalez of the USFS International Institute of Tropical Forestry, shows damage as many trees were blown down at the Bisley research site after Irma. Most people living in Puerto Rico remain without power."

Late-breaking research sessions relating to the 2017 hurricane season have been added to the fall 2017 AGU docket

Please consider donating to recovery funds, such as United Puerto Rico, to help those who have been adversely affected by Hurricane Irma and Maria. 

See more: News | Twitter

Upcoming Meetings and Workshops


ILTER and LTER-France Joint Conference

October 2-4, 2017 
Nantes, France

The International Long Term Ecological Research Network (ILTER), LTER-France Zone Ateliers Network, and the Critical Zone Observatories are joining in Nantes, France to present interdisciplinary research and discuss recent developments and applications on Long-Term Socio-Ecosystems sites and platforms.

ILTER-LTER 2017 conference information

2017 SACNAS National Diversity in STEM Conference

October 19-21, 2017 
Salt Lake City, Utah

2017 SACNAS is the largest diversity in STEM conference in the country. Three day s will be devoted to training, mentoring, and cutting-edge science for scientists of all levels and disciplines. 

2017 SACNAS National Diversity Conference 

GSA Annual Meeting 2017

October 22-25, 2017 
Seattle, Washington

Registration for the Geologic Society of America (GSA) annual meeting remains open. There will be something for everyone, from hypothesis-driven basic and applied research to geoscience education, information, and communication. The Pacific Northwest provides great opportunities to experience the geosciences through 24 field trips and 25 short courses. Please participate in some of the >250 topical sessions nested within 31 geoscience disciplines.

GSA 2017, including CZ science sessions

AGU Fall Meeting 2017

December 11-15, 2017
New Orleans, Louisiana

AGU's Fall Meeting brings together one of the largest groups of Earth and space scientists from across the globe for discussions of emerging trends and the latest research. The meeting is a vast mix of more than 20,000 oral and poster presentations, a broad range of keynote lectures, various types of formal and informal networking and career advancement opportunities, and an exhibit hall.

AGU 2017, including CZ science sessions

Jobs & Opportunities

Call for Participation in Special Issue for CZ Science
Frontiers in Earth Science

Abstract submission deadline: October 7, 2017

In collaboration with Frontiers in Earth Science, a research topic titled "Critical Zone (CZ) Export to Streams as Indicator for CZ Structure and Function" within the section "Biogeoscience," is seeking manuscript submissions.This research topic will act as a venue for Critical Zone Science journal publication. The goal of this special topic on "streams as indicators for CZ structure and function" is to explore linkages between biotic and abiotic weathering, soil biogeochemical processes, chemical and physical denudation and hydrology within the Critical Zone. 

Special issue description

Assistant Professor: Environmental Chemistry
Northern Arizona University 

Application review begins: October 9, 2017

Northern Arizona University seeks a full-time tenure-track joint position shared between the School of Earth Sciences and Environmental Sustainability and the Department of Chemistry and Biochemistry. The successful candidate will be expected to develop a vigorous, externally funded research program in environmental chemistry, mentor undergraduate and graduate students, provide teaching excellence in upper-division undergraduate- and graduate-level environmental chemistry lectures and labs, and actively serve the university. 

More information on the position at NAU 

Assistant Professor: Weathering and Soil Development
University of Lausanne

Application Deadline: October 15, 2017 

The Faculty of Geosciences and Environment at the University of Lausanne seeks to appoint an Assistant Professor (tenure track) in Weathering and Soil Development at the Institute of Earth Surface Dynamics (IDYST). The position will focus on processes in the critical zone that link the impact of weathering to the Earth’s climate and to the evolution of landscape and biomass. Research approaches that integrate different temporal and spatial scales to identify mechanisms of soil development and the quantification of rates and fluxes involved in weathering processes are highly recommended. A good command of both French and English is desirable.
Email Professor René Véron

Assistant Professor: Paleoclimatology-Geochemistry Montclair State University

Application deadline: October 20, 2017 

Department of Earth and Environmental Studies at Montclair State University invites applications for a full-time (10-month) tenure-track Assistant Professor position in Paleoclimatology/Geochemistry. The position seeks individuals who work with geological archives (corals, speleothems, ocean sediments, lake sediments, ice cores, glacial deposits, tree rings) to understand Earth’s climate processes such as atmospheric and ocean circulation, the global carbon cycle, cryosphere dynamics, and how these processes affect biological and human systems over a range of time scales. 

To apply: Electronic applications assembled into one combined .pdf or .doc file, and containing a cover letter, CV, statements of teaching and research interests, and the names and contact information for three professional references should be sent to  

Open Position: Kellogg Biological Station Director
Michigan State University 

Application submission is open until position is filled

Michigan State University seeks a director for the W. K. Kellogg Biological Station (KBS) to provide leadership and promote a creative environment that fosters innovation and excellence in the Station's research, education, and outreach programs in ecology, evolution, agriculture, and conservation biology. This is an annual-year (12-month) full-time academic appointment based at KBS at the level of Full Professor, with a tenure appointment in a campus department appropriate to the candidate's expertise. The position is expected to be filled beginning August 2018.
Email search committee chair Dr. Michael Jones or co-chair Dr. Danny Schnell

CZO Blog writers 

Deadline: None

Want to spread the word about your CZO research to a general audience? Please consider contributing a guest blog entry to the CZO blog Adventures in the Critical Zone. CZO will assist you with illustrations/photos and your entry will be featured on the CZO website. If interested, contact Justin Richardson (CZO National Office postdoc) with your topic.  

Email Justin Richardson guest blogging
Also See: CZO News: August 2017

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