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Factors Affecting Blue Oak Sapling Recruitment And Regeneration
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Book Synopsis Factors Affecting Blue Oak Sapling Recruitment and Regeneration by : Tedmund Julian Swiecki
Download or read book Factors Affecting Blue Oak Sapling Recruitment and Regeneration written by Tedmund Julian Swiecki and published by . This book was released on 1993 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Affecting Blue Oak Sampling Recruitment and Regeneration by : Tedmund Julian Swiecki
Download or read book Factors Affecting Blue Oak Sampling Recruitment and Regeneration written by Tedmund Julian Swiecki and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PSW. written by and published by . This book was released on 1990 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regenerating Rangeland Oaks in California by : Douglas D. McCreary
Download or read book Regenerating Rangeland Oaks in California written by Douglas D. McCreary and published by UCANR Publications. This book was released on 2001 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of a Symposium on Oak Woodlands by :
Download or read book Proceedings of a Symposium on Oak Woodlands written by and published by . This book was released on 1997 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Soil Compaction on Emergence and Growth of Quercus Douglasii by : Erika Teach
Download or read book Effects of Soil Compaction on Emergence and Growth of Quercus Douglasii written by Erika Teach and published by . This book was released on 2015 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many species of oak across the world exhibit low rates of recruitment and regeneration. In California, Quercus douglasii (blue oak) has experienced little to no recruitment over the past 100 to 150 years. A variety of factors, including competition from non-native plants, livestock grazing, fire suppression, and habitat fragmentation, have individually and collectively been postulated as drivers for low recruitment of blue oak. Despite the prevalence of livestock grazing and attendant soil compaction throughout the range of blue oak, soil compaction has not been studied as a possible factor affecting blue oak recruitment. Therefore, the objective of this study is to examine whether soil compaction affects blue oak seedling emergence and growth. I hypothesized that increasing soil compaction would increase the number of days to emergence and decrease the growth of blue oak seedlings compared to emergence and growth in uncompacted soil. To test this hypothesis blue oak acorns were grown in field collected soil hand compacted to different bulk density levels. Blue oak acorns and soil were collected at the Sierra Foothill Research and Extension Center (SFREC) located in Yuba County, California. Two pre-germinated acorns were planted in 72 PVC pots filled with soil compacted to contrasting levels of bulk density. Bulk density levels mimicked the range of those found at the SFREC in grazed and ungrazed areas. After germination time to shoot emergence was collected and pots thinned to one seedling each. Seedlings were grown at a nursery in Sacramento for 7 months, after which they were removed from the PVC pots and separated from the soil. Following seedling harvest soils were analyzed for final bulk density and basal stem diameter, shoot length, and taproot length of seedlings were measured. Seedling fine and coarse root lengths were measured using WinRHIZO software. Biomass of above and belowground parts of each plant was determined. To test the effect of soil bulk density on seedling growth analysis of variance was conducted. Time to shoot emergence differed significantly across treatment levels, with seedlings grown at the control bulk density level emerging earlier compared to those grown at low and high bulk densities. In addition, taproot length was significantly greater at low and high soil bulk densities compared to the control. Root to shoot mass ratio was significantly higher in low compared to high soil bulk density, but neither differed from the control. No significant differences in seedling growth were observed in the nine other seedling growth variables with respect to compaction treatment. The results indicate that soil bulk density levels used in this study affected some seedling growth variables but did not substantially inhibit growth of blue oak seedlings. This suggests that soil compaction caused by grazing cattle at moderate stocking rates may affect blue oak seedling emergence but may not affect later stages of seedling growth and thus recruitment in blue oak populations.
Book Synopsis Effects of Fire and Grazing on Blue Oak Regeneration by : Barbara Allen-Diaz
Download or read book Effects of Fire and Grazing on Blue Oak Regeneration written by Barbara Allen-Diaz and published by . This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Fifth Symposium on Oak Woodlands by :
Download or read book Proceedings of the Fifth Symposium on Oak Woodlands written by and published by . This book was released on 2002 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surveying Marbled Murrelets at Inland Forested Sites by :
Download or read book Surveying Marbled Murrelets at Inland Forested Sites written by and published by . This book was released on 1990 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Angeles, Cleveland, Los Padres, San Bernardino National Forests (N.F.), Revised Land Management Plans by :
Download or read book Angeles, Cleveland, Los Padres, San Bernardino National Forests (N.F.), Revised Land Management Plans written by and published by . This book was released on 2005 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis California State Publications by : California State Library
Download or read book California State Publications written by California State Library and published by . This book was released on 1995 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sierra Nevada Forest Plan Amendment by :
Download or read book Sierra Nevada Forest Plan Amendment written by and published by . This book was released on 2001 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Symposium on Oak Woodlands and Hardwood Rangeland Management, October 31-November 2, 1990, Davis, California by :
Download or read book Proceedings of the Symposium on Oak Woodlands and Hardwood Rangeland Management, October 31-November 2, 1990, Davis, California written by and published by . This book was released on 1991 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vegetation Change in Blue Oak and Blue Oak/foothill Pine Woodland by :
Download or read book Vegetation Change in Blue Oak and Blue Oak/foothill Pine Woodland written by and published by . This book was released on 1995 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Common Shrubs of Chaparral and Associated Ecosystems of Southern California by : C. Eugene Conrad
Download or read book Common Shrubs of Chaparral and Associated Ecosystems of Southern California written by C. Eugene Conrad and published by . This book was released on 1987 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Symposium on Multiple-Use Management of California's Hardwood Resources by :
Download or read book Proceedings of the Symposium on Multiple-Use Management of California's Hardwood Resources written by and published by . This book was released on 1987 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sierra Nevada Forest Plan Amendment: Chapter 3, parts 1-3, 5 and 6 by :
Download or read book Sierra Nevada Forest Plan Amendment: Chapter 3, parts 1-3, 5 and 6 written by and published by . This book was released on 2001 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: