scholarly journals Amount and Location of Damage to Residual Trees from Cut-to-Length Thinning Operations in a Young Redwood Forest in Northern California

Forests ◽  
2018 ◽  
Vol 9 (6) ◽  
pp. 352 ◽  
Author(s):  
Kyungrok Hwang ◽  
Han-Sup Han ◽  
Susan Marshall ◽  
Deborah Page-Dumroese
Keyword(s):  
Northern California ◽  
Thinning Operations ◽  
Redwood Forest

Cradle-to-gate life cycle impacts of redwood forest resource harvesting in northern California

2015 ◽  
Vol 99 ◽  
pp. 217-229 ◽  
Author(s):  
Han-Sup Han ◽  
Elaine Oneil ◽  
Richard D. Bergman ◽  
Ivan L. Eastin ◽  
Leonard R. Johnson
Keyword(s):  
Life Cycle ◽  
Northern California ◽  
Forest Resource ◽  
Cradle To Gate ◽  
Redwood Forest

Arboreal Histosols in Old-Growth Redwood Forest Canopies, Northern California

2006 ◽  
Vol 70 (2) ◽  
pp. 408-418 ◽  
Author(s):  
Heather A. Enloe ◽  
Robert C. Graham ◽  
Stephen C. Sillett
Keyword(s):  
Northern California ◽  
Old Growth ◽  
Forest Canopies ◽  
Redwood Forest

Soil compaction from cut-to-length thinning operations in young redwood forests in northern California

2020 ◽  
Vol 50 (2) ◽  
pp. 185-192 ◽  
Author(s):  
Kyungrok Hwang ◽  
Han-Sup Han ◽  
Susan E. Marshall ◽  
Deborah S. Page-Dumroese
Keyword(s):  
Reference Point ◽  
Soil Depth ◽  
Soil Surface ◽  
Soil Bulk Density ◽  
Northern California ◽  
Wet Season ◽  
Significant Difference ◽  
Percent Increase ◽  
Thinning Operations ◽  
Negative Impacts

In northern California, United States, a cut-to-length (CTL) system was recently used for the first time to harvest young redwood (Sequoia sempervirens (Lamb. ex D. Don) Endl.) forests. Landowners and public agencies in this region have been concerned about the potential negative impacts of CTL on soils during wet-season harvest operations. To determine soil impacts, we measured changes in soil bulk density (BD) and hydraulic conductivity (HC) after CTL operations in May and August. Soil samples were collected at two locations (track and center) along forwarder trails and at a reference point at three soil depths (0–5, 10–15, and 20–25 cm), and HC samples were collected only at the 0–5 cm soil depth from the same sample points. We found a significant difference in BD between the reference point and track at 0–5 cm, which decreased as soil depth increased. There was a negative correlation between initial BD values and percent increase of BD, supporting the fact that the percent increase in BD was high at the soil surface (25%–30%), but BD did not exceed 1.13 Mg·m–3 at the 0–5 cm depth. However, our HC results were different from what we expected and were not as consistent as the BD results, as the HC data had much higher variability.

Changes of mercury concentrations in streamwater after a destructive wildfire (Camp Fire 2018) and a prescribed burning in northern California

2020 ◽  
Author(s):  
Alex Chow ◽  
Jackson Webster ◽  
Hunter Robinson ◽  
Robert rhew ◽  
Martin Tsz-Ki Tsui ◽  
...  
Keyword(s):  
Prescribed Burning ◽  
Northern California
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