Comparison of a degree-day computer and a recording thermograph in a forest environment.

Boyd E. Wickman

doi:10.2737/PNW-RN-427

Treesearch

Comparison of a degree-day computer and a recording thermograph in a forest environment.

Informally Refereed

Authors:

Boyd E. Wickman

Year:

1985

Type:

Research Note

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RN-427

Source:

Res. Note PNW-RN-427. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 7 p

Download (PDF 286 KB)

Download (PDF 286 KB): https://research.fs.usda.gov/download/treesearch/26838.pdf

Abstract

A field test showed that degree-days accumulated by a miniature computer and a recording thermograph in early spring and summer were comparable. For phenological studies the biophenometer was as accurate and more efficient than the hygrothermograph.

Keywords

degree days, phenology, temperature (-plants, field equipment, insect control

Citation

Wickman, Boyd E. 1985. Comparison of a degree-day computer and a recording thermograph in a forest environment. Res. Note PNW-RN-427. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station: 7 p