Thinning treatments had minimal effect on soil compaction in mixed-conifer plantations
If biomass utilization results in soil compaction and reduced forest productivity, the potential benefits may be considered to be not worth the long-term impacts. We analyzed soil strength, an indicator of soil compaction, prior to and following commercial thins (sawlog an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of California Agriculture and Natural Resources
2015-07-01
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| Series: | California Agriculture |
| Subjects: | |
| Online Access: | http://calag.ucanr.edu/archive/?article=ca.v069n03p157 |
| Summary: | If biomass utilization results in soil compaction and reduced forest productivity,
the potential benefits may be considered to be not worth the long-term impacts. We
analyzed soil strength, an indicator of soil compaction, prior to and following commercial
thins (sawlog and biomass harvest) and mastication treatments in 24- to 30-year-old
mixed-conifer plantations in the central Sierra Nevada. Soil strength in mature, untreated
second-growth stands was also measured as a reference. Neither the commercial thins
nor the mastication treatments resulted in statistically detectable increases in compaction.
Most of the existing compaction came from the original regeneration harvest that established
the plantations several decades earlier. It will be important to monitor repeat treatments
and long-term effects, but this study suggests that managers should not expect large
impacts from thinning treatments on soil compaction in forests such as the one studied
here as long as best practices are used. |
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| ISSN: | 0008-0845 2160-8091 |