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Publication Information

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Title: Sampling tree tops by helicopter...special pole pruner cuts branchlets

Author: Wear, John F.; Winterfeld, Robert G.;

Date: 1966

Source: Res. Note PSW-RN-131. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

Publication Series: Research Note (RN)

Description: A new technique for sampling tops of tall Douglas-fir trees by using a special pole pruner from a helicopter has been developed and field-tested. Thee pole pruner cuts and holds a branchlet. Foliage samples collected will be compared by spectral analysis to show the type of aerial imagery that best differentiates healthy trees from those attacked by root rot.

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Citation:


Wear, John F.; Winterfeld, Robert G. 1966. Sampling tree tops by helicopter...special pole pruner cuts branchlets. Res. Note PSW-RN-131. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

 


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