Markus Kleber

Professor, Soil System Science
markus.kleber [at]

Office: 541-737-5718

Agricultural & Life Sciences

Agricultural & Life Sciences 3067

2750 SW Campus Way

2750 SW Campus Way
Corvallis, OR 97331

The processes at the interface between organic matter and mineral surfaces, including mineral surface properties, organic matter properties, bonding mechanisms, adsorption processes, mineral-microbial interactions, and organic matter turnover dynamics.


  • Organic carbon accumulation in Umbric Ferralsols. Laspau. Graduate Student: Pedro Henrique Rodrigues de Moraes Martinez, (PhD)
  • A Mechanistic Understanding of PFAS in Source Zones: Characterization and Control. SERDP. Lead PI: Jennifer Field. Graduate Student: Tom Wanzek (PhD)
  • Strengthening Soil Health to Suppress Verticillium Wilt in Potato Production Systems. Northwest Potato Research Consortium. Graduate Student: Larisa LaMere (MSc)
  • Which cover crop varieties can improve soil quality in Central Oregon ? ARF. Lead PI: Clare Sullivan. Central Analytical Laboratory.  Lab Manager: Gloria Ambrowiak. Faculty Research Assistant: Adam Fund
  • Solidifying the Oregon Soil Health Assessment. NRCS. Central Analytical Laboratory. Gloria Ambrowiak. Faculty Research Assistant: Adam Fund

Profile Field Tabs

Affiliated with: 
Crop and Soil Science
Courses Taught: 

SOIL 388 Soil Systems and Plant Growth (Ecampus, Fall Term, with Adam Lindsley)

Introduces soils as providers of critical resources for plant growth. Explains how soils supply water, air, thermal energy and nutrients to plants. Shows that sustainable management of soil resources requires substantial understanding of their role in the functioning of natural, forest, and agricultural systems. Explains controls on stocks and availabilities of individual soil resources and mechanisms making these resources plant-available.

SOIL 525  Mineral-organic interactions (Winter Term)

Treats soil as the interface between organic and mineral components. Introduces molecular scale properties of major system components (mineral types and forms of soil organic matter). Shows how interactions between minerals and organics determine the special nature of the soil "bioreactor". Course is focused on biogeochemical processes that determine soil organic matter turnover.

SOIL 512   Soil analysis (Field Excursion, Summer Term, with Gloria Ambrowiak and Adam Fund)

Demonstration of soil management challenges in agroecosystems, soil resource assessments for the major soil orders used for the production of field and horticultural crops in Oregon; demonstration of soil sampling techniques.  Individual and group activities; discussion of the decision-making process for soil resource assessments.  5 day duration with three - four overnight stays on campgrounds. A field trip fee will be charged.

SOIL 514 Soil analysis (Laboratory, Summer Term, with Gloria Ambrowiak and Adam Fund)

Provide the theoretical background as well as practical experience needed to plan, select, execute and interpret the soil chemical and physical analyses used for nutrient management recommendations. Individual and group activities; involves classroom presentations as well as hands – on work in a teaching laboratory. Samples processed are those collected in the course of preceding Field Course SOIL 514. Duration  five (5) full work days. A lab fee will be charged.

My Publications