Course ID: | CRSS 4670/6670. 3 hours. |
Course Title: | Environmental Soil Chemistry |
Course Description: | Environmental soil chemistry applies and extends the concepts of chemistry and physics to the investigation of problems related to the physical, chemical, and biological characteristics of soil and their importance in relation to the management of contaminants, pesticides, and production inputs. |
Oasis Title: | Environmental Soil Chemistry |
Prerequisite: | CRSS 3050 or CRSS(FANR) 3060 or permission of department |
Semester Course Offered: | Offered spring semester every year. |
Grading System: | A-F (Traditional) |
|
Course Objectives: | Environmental Soil Chemistry covers an introduction to the principal chemical
constituents and processes occurring in soils and sediments. The objective of the
course is to provide students with a conceptual framework for understanding chemical
reactions in heterogeneous natural systems and how to apply that framework to evaluate
human and societal interaction with soils. Applications to biogeochemistry and
environmental quality are presented, but fundamental principles are emphasized.
Students are expected to use these fundamental concepts of how soil chemical phenomena
articulate in natural systems as a guide to their assessments and recommendations for
improving agricultural soils or for remediating/restoring human-impacted soils. |
Topical Outline: | 1 Introduction Math and chemistry review
2 Introduction Human interaction with the soil chemical environment
3 Minerals Chemical bonds and crystal structure
Primary minerals/clay structure
4 Minerals Secondary minerals and chemical weathering
5 Organic Matter Carbon cycling and functional groups
Biological components in organic matter
6 Organic Matter Organic matter and humic substances
7 Thermodynamics
8 Aqueous Geochemistry
Water and ion hydration chemistry
9 Aqueous Geochemistry acid/base, complexation
speciation/model and sampling methods
10 Mineral Solubility saturation index/meta stability
stability diagrams/modeling
11 Redox electron activity/redox in soils
Predominance diagrams
12 Review/Midterm
13 Sorption Overview of sorption processes and impact on society
Surface charge and electric double layer
14 Sorption Quantitative adsorption
Specific retention/modeling
15 Sorption cation exchange
Soil Acidity Acid-mine drainage: The consequences of resource extraction
16 Soil Salinity/Sodicity Irrigation in the western U.S.
Final Review |