Blue oak enhance soil quality in California oak woodlands | Zendy

Randy A. Dahlgren | Zendy; William R. Horwáth | Zendy; Kenneth W. Tate | Zendy; Trina J. Camping | Zendy

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Blue oak enhance soil quality in California oak woodlands

Author(s) -

Randy A. Dahlgren,

William R. Horwáth,

Kenneth W. Tate,

Trina J. Camping

Publication year - 2003

Publication title -

california agriculture

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.472

H-Index - 25

eISSN - 2160-8091

pISSN - 0008-0845

DOI - 10.3733/ca.v057n02p42

Subject(s) - environmental science , woodland , soil fertility , nutrient , canopy , soil quality , vegetation (pathology) , tree canopy , grassland , soil nutrients , soil organic matter , soil water , agronomy , agroforestry , ecology , biology , soil science , medicine , pathology

Blue oaks create islands of enhanced soil quality and fertility beneath their canopy. The quality of soil beneath the oak canopy is considerably better than that of the grasslands adjacent to the trees. We found evidence of improved soil quality under blue oaks for physical, chemical and biological soil properties. The type of vegetation (oak versus annual grasses) has a much stronger influence on soil organic matter and nutrient pools than does soil parent material. Removal of oak trees results in a rapid deterioration of soil quality with the majority of the loss occurring within 10 to 20 years after tree removal.

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