Conifer regeneration on burned and unburned clearcuts on granitic soils of the Klamath National Forest

Danny Heavilan

Treesearch

Conifer regeneration on burned and unburned clearcuts on granitic soils of the Klamath National Forest

Informally Refereed

Authors:

Danny Heavilan

Year:

1977

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-321. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 3 p

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Download (PDF 237 KB): https://research.fs.usda.gov/download/treesearch/31326.pdf

Abstract

Regeneration was studied on a mixed conifer stand on granitic soils on the Klamath National Forest. Six years after logging and hand planting with Douglas-fir, stocking and growth on cutblocks where slash had been broadcast burned was compared with that on similar unburned cutblocks. Conifers were seven times more plentiful on the unburned areas, the average height of the tallest conifer on each plot was nearly twice as great, and the yearly height growth was 27 percent greater. Results suggest that modification of burning policies on this soil type may improve regeneration.

Keywords

Douglas-fir, artificial generation, site preparation, granitic soils, broadcast burning, growth rates, Klamath National Forest

Citation

Heavilan, Danny. 1977. Conifer regeneration on burned and unburned clearcuts on granitic soils of the Klamath National Forest. Res. Note PSW-RN-321. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 3 p