Soil & Water Science

10. Concepts of Soil Science (4)
Lecture—3 hours; extensive writing; extensive problem solving. Field trip required. The global ecosystem; soils as natural bodies formed by interactive environmental processes; soil response to use and management; conservation practices for sustainable use of soil resources; role of soils in current agricultural and environmental issues. GE credit: SciEng, Wrt.—I. Dahlgren

92. Soil Science Internship (1-12)
Internship—3-36 hours. Prerequisite: lower division standing and consent of instructor. Work experience off and on campus in soil science. Internship supervised by a member of the faculty. (P/NP grading only.)

100. Principles of Soil Science (5)
Lecture—3 hours; laboratory—3 hours; term paper. Prerequisite: Chemistry 2A-2B, Physics 1A-1B, Biological Sciences 1A; Geology 50, Biological Sciences 1C recommended. Soil as part of natural and managed ecosystems and landscapes. Solid, liquid, and gas phases and their interactions in the soil. Water, gas and heat movement in soil. Soil biology. Plant nutrient acquisition and use. Soil development, management and use.—I. (I.) Singer

102. Soil and Water Chemistry (5)
Lecture—3 hours; discussion—1 hour; laboratory—3 hours. Prerequisite: course 100 or the equivalent. Soil solution and solid-phase chemistry of soils in relation to agricultural and environmental concerns. Inter-actions between soil solids, precipitates and solution phases: mineralogy, ion exchange, adsorption, weathering and buffering, soil colloidal behavior, models of solution and solid-phase interactions.—II. (II.) Zasoski

105. Field Studies of Soil Resources (8)
Fieldwork—daily for five weeks, off campus; lecture—1 week, on campus. Prerequisite: consent of instructor; course 120 recommended. Study of soils in the field throughout California. Emphasis on identification, description and classification of soils; relation of soils to geology, vegetation, climate and human activities; role of soils in land use and as components of California ecosystems.—summer. Dahlgren, Singer, Southard

107. Soil Physics (5)
Lecture—3 hours; laboratory—3 hours; discussion—1 hour. Prerequisite: course 100, Environmental and Resource Sciences 100, Mathematics 16A, or the equivalent. Physical properties of soil. Principles of water, gas, heat, and solute movement in soil with selected examples related to soil and water management. Influence of soil properties on transfer processes.—I. (I.) Rolston, Hopmans

109. Nutrient Cycling and Management (5)
Lecture—3 hours; discussion—1 hour; laboratory—3 hours. Prerequisite: course 100 or the equivalent. Plant nutrients in soil; effects of fertilizers, cover crops, compost and other amendments on plant productivity and soil quality; nutrient sustainability in alternative agricultural and natural ecosystems; soil fertility assays.—III. (III.) Horwath

111. Soil Microbiology (4)
Lecture—3 hours; laboratory—3 hours. Prerequisite: Chemistry 1C and Biological Sciences 1C. Major groups of microorganisms in soil, their interrelationships, and their responses to environmental variables. Role of microorganisms in cycling of nutrients. Plant-microbe relationships. Transformations of organic and inorganic pollutants.—II. (II.) Scow

112. Soil Ecology (3)
Lecture—2 hours; laboratory/discussion—2 hours. Prerequisite: Biological Sciences 1B, 1C, course 100. The biology and ecology of soil communities, emphasizing the soil food web and litter decomposition. Role of specific biota, ranging from microorganisms to earthworms. Applications to restoration, remediation, ecosystem science, and agriculture. GE credit: Wrt.—I. (I.) Scoe, Jaffee

118. Soils in Land Use and the Environment (4)
Lecture—3 hours; discussion—1 hour; one one-day field trip. Prerequisite: course 100 or consent of instructor. Soils are considered as elements in land use planning and environmental quality. Topics include: soil survey reports, remote sensing, land capability classification, soil erosion/conservation, waste disposal on soils and soil reclamation.—III. (III.) Singer

120. Soil Genesis, Morphology, and Classification (5)
Lecture—4 hours; laboratory—3 hours (includes five one-day weekend field trips). Prerequisite: course 100; Geology 50 recommended. Recognition and description of soils; chemical, biological and physical processes of soil formation. Factors of soil formation. Interactions of soils with diverse ecosystems. Introduction to soil classification. Practice using soil taxonomy. Practical experience describing soil properties in the field.—III. (III.) Southard

192. Soil Science Internship (1-12)
Internship—3-36 hours. Prerequisite: completion of 84 units and consent of instructor. Work experience off and on campus in soil science. Internship supervised by a member of the faculty. (P/NP grading only.)

198. Directed Group Study (1-5)
(P/NP grading only.)

199. Special Study for Advanced Undergraduates (1-5)
(P/NP grading only.)