Group members

Principal Investigator`

Asmeret in the alpsAsmeret Asefaw Berhe
Associate Professor, Soil Biogeochemistry
Life and Environmental Sciences
University of California, Merced

AABerhe – CV
email: aaberhe(at)ucmerced(dot)edu

Researchers

Fernanda_river_CAFernanda Santos

Postdoc
email:fsantos4@ucmerced.edu

Research focus: Dynamics of pyrogenic carbon in soil, effect of combustion temperature on composition of dissolved organic matter in fire affected systems
https://www.fsantosresearch.com

 

Nathaniel Bogienate_field

Postdoc
(Berhe lab and Ghezzehei lab)
email:nbogie@ucmerced.edu

Research focus: Effect of drought and variability of soil water input on soil carbon, aggregation, and water holding capacity

Benjamin Sulmandigging in grassland

Project scientist
email: sulman@ucmerced.edu

Research focus: Modeling the roles of microbial and mineral processes in soil organic matter formation, stabilization, and decomposition from ecosystem to global scales.Research focus: Effect of drought and variability of soil water input on soil carbon, aggregation, and water holding capacity

Current students

Lixia Jin

Lixia Ph.D. student
Environmental Systems Graduate Group, UC Merced
email: ljin3(at)ucmerced(dot)edu

Research focus: Role of metal oxides in soil organic matter dynamics, and distribution of natural nano-particulate metal oxides in soil

Morgan Barnes

Barnes_website photo PhD student
Environmental Systems Graduate Group, UC Merced
co-advised by Stephen C. Hart
email:mbarnes7(at)ucmerced(dot)edu

Research focus: Phosphorous Biogeochemistry, and effect of soil development on biogeochemical cycling of essential elements

Kimber Moreland

Kimber for website PhD student
Environmental Systems Graduate Group, UC Merced
email:kmoreland(a)ucmerced.edu

Research focus:Dynamics of deep SOM, and climatic controls on biogeochemical cycling of essential elements

Manisha Dolui

PhD studentPicture1
Environmental Systems Graduate Group, UC Merced

email:mdolui(a)ucmerced.edu

Research focus: Vulnerability of Buried Soil Carbon due to Future Climate Change

 

 

LeilaWahab-1030x773Leila Wehab

PhD student

Environmental Systems Graduate Group, UC Merced

email:lwehab(a)ucmerced.edu

Research focus: Effect of changing precipitation patterns on Soil organic nitrogen dynamics

 

Visiting Scholar

Chun Liu

chun.jpgEmail: cliu90(at)ucmerced.edu / lspring(at)hnu.edu.cn

Hunan University (China) and State Key Lab of Soil Erosion and Dryland Farming on the Loess Plateau (China)

Current work: Source identification and ecological effect of eroded sediment organic carbon using multiple fingerprinting approach in small watershed of loess plateau of China.

 

 

quantum-threat-to-relativity_1_1Veronika Ullman

Email: vullman(at)ucmerced.edu

Visiting student
University in Augsburg, Germany

Current work: Climatic controls on soil phosphorous speciation (with Morgan Barnes)

 

quantum-threat-to-relativity_1_1Ray Alves 

Email: ralves(at)ucmerced.edu

Visiting student
University of Brasilia

Current work: Topographic controls on soil organic matter composition in tropical ecosystems

 

Lab Alumni

Chelsea Arnold

Washington 09 196

Ph.D. 2014, UC Merced
Environmental Systems Graduate Group
Co-advised by Teamrat A. Ghezzehei
Research focus: Coupled hydrology and biogeochemistry of high elevation meadow soils in the Sierra Nevada
Current: Director of CalTeach Program, School of Natural Sciences, UC Merced

Samuel Negusse Araya

Samuel

M.Sc. 2014, UC Merced
Environmental Systems Graduate Group
email
Research focus: The effect of combustion temperature on soil and soil organic matter properties
Current: Ph.D Student ES Graduate Group, UC Merced

Erin Stacy

OLYMPUS DIGITAL CAMERA
M.Sc.  2012, UC Merced
Environmental Systems Graduate Group
Co-advised by Stephen C. Hart
Research focus: effect of soil erosion on storage and stabilization of soil organic matter in the S. Sierra Nevada
Current: Field Manager for the Southern Sierra Critical Zone Observatory

Michael Kaiser

Michael photo
Former Postdoc (2010-2012)
currently a senior lecturer at University of Kassel, Germany
Research focus: effect of ultrasonication, air-drying rewetting on soil organic matter dynamics; effect of biochar and CaCO3 on soil aggregation

Current Position: Assistant Professor at University of Nebraska, Lincoln

Deoyani V. Sarkhot

Deoyani
Former Postdoc (2009-2010)
Research focus:nutrient enrichment of biochar with flushed dairy manure, effects on soils C and N dynamics
Currently at EcoPro, India

Emma McCorkle

Emma

M.Sc. student
Environmental Systems Graduate Group
UC Merced
Co-advised by Stephen C. Hart

Research focus: Using stable isotopes to determine source of organic matter eroded in low-order granitic catchments in the Sierra Nevada Mountains
Current position: Research technician, Reynolds Creek CZO, Moscow, ID

Rebecca Lever

Rebecca Ph.D. Candidate
Environmental Systems Graduate Group, UC Merced

Research focus: Lateral transport of pyrogenic C with soil erosion, and determining mean residence time of PyC in dynamic hillslopes

Current Position: Postdoc, Indiana University, Bloomington.

Jesseca Meyer

IMG_8155
Former Lab Manager
Current Position: High school Life Science teacher, Atwater, CA

Former Visiting Scholars

 

 

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Elisabet Nadeu
Visiting Ph.D. Student
Centro de Edafología y Biología Aplicada del Segura (CEBAS), Spain

 

 

 

Sebastian

Sebastian Doetterl
Visiting Postdoc
University of Ghent, Belgium

 

 

Yaxian photo
Yaxian Hu
Visiting Postdoc
University of Basel, Switzerland
Moritz

 

Moritz Mainka
Visiting student
University in Augsburg, Germany

 

Former Undergraduate Assistants

Matt

Matthew McClintock
Undergraduate Research Assistant
Currently a graduate student at Oregon State University

Alexander NewmanGroup

  • Lateral redistribution of Fe and Al oxides  by soil erosion
  • Storage and stabilization of C in soil

Dziegiel_Abby_200_200_80auto_s_c1

Abigail Dziegiel
Yosemite REU student researcher

stephen
Stephen Ho
Yosemite REU student researcher

DSCN2515
Laura Jelpa
Undergraduate lab research assistant

Jennifer Gurreroquantum-threat-to-relativity_1_1
Undergraduate lab research assistant

Intern

Alex GueorguievaFullSizeRender
(El Capitan High School student, Merced)
Research focus: Erosion in fire affected hillslopes

Current: Undergraduate Student at UC Berkeley