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OAK WOODLANDS
Major Points
Blue oak, valley oak and Engelmann oak are deciduous white oaks that sometimes regenerate poorly.
Reasons for poor regeneration include 1) competition from annual grasses and forbs, 2) rodent damage, 3) livestock grazing and 4) changes in fire frequency.
Most of California's private grazinglands are in the oak-woodlands and the adjacent annual grasslands.
The UC Integrated Hardwood Range Management Program (UC IHRMP) has developed restoration practices that improve the suvival and establishment of oaks.
Useful Web Sites
Scientific Reports
- Allen-Diaz, B.H. and B.A. Holzman. 1991. Blue oak communities in California. Madrono 38(2):80-95.
- Allen, B.H., B.A. Holzman, and R.R. Evett. 1991. A classification system for California's hardwood rangelands. Hilgardia 59(2):1-45.
- McCreary, Douglas D. 2001. Regenerating Rangeland Oaks in California. Publication 21601, Division of Agriculture and Natural Resources, University of California, Oakland, CA. 62 pgs.
- Dahlgren, RA, WR Horwath, KW Tate, and TJ Camping. 2003. Blue oak enhance soil quality in California oak woodlands. California Agriculture 57:42-47.
- Phillips, RL, NK McDougald, ER Atwill and D McCreary. 2007. Exclosure size affects young blue oak seedling growth. California Agriculture 61 16- 19.
- McCreary, DD and MR George. 2005. Managed grazing and seedling shelters enhance oak regeneration on rangelands. California Agriculture 59:217- 222.
- Duncan, DA, NK McDougald and SE Westfall. 1987. Long-term changes from different uses of foothill hardwood rangelands. Gen. Tech. Rep. PSW-100, USDA Forest Service, Berkeley, CA.
- Oak Research Update
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