Soil and Nutrient Cycling in Mediterranean-Type Ecosystems: A Summary and Synthesis1
نویسندگان
چکیده
Supervisory Soil Scientist, Rocky Mountain Forest and Range Experiment Station, Tempe, Arizona; and Soil Microbiologist, Pacific Southwest Forest and Range Experiment Station, Glendora, California. The weathering of parent rock may be an important source of some nutrients. The rates of weathering of the different parent rock materials vary and affect the inherent fertility and productivity of a site. Little is known about the nutrient additions to southern California soils by rock weathering although some research on granitic soils in Idaho indicates that substantial amounts of some nutrients can be added by weathering (Clayton 1979).
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