Graduate Thesis Or Dissertation

 

Natural debris and logging residue within the stream environment Öffentlichkeit Deposited

Herunterladbarer Inhalt

PDF Herunterladen
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/xs55mg50x

Descriptions

Attribute NameValues
Creator
Abstract
  • Amounts of natural debris in small headwater streams under old growth stands of Douglas-fir vary from 6 1/2 tons per 100 ft. of stream to 26 tons per 100 ft. of stream, depending on terrain and timber characteristics and sequence in the natural accumulation-flushing cycle. Approximately 10% of the weight of total debris is in the size class smaller than 10 cm in diameter. After falling, there was an increase of debris depending on stream protection measures, falling methods and environmental factors. After yarding, the amount of total debris was reduced on the average to almost 50% from what it was originally. At the same time, the amount of branch-type debris increased although the amount of finer debris (<1 cm) decreased. A wide buffer-strip provided an almost complete physical barrier against debris movements, while a very small buffer-strip provided much less stream protection in terms of logging residue. Cable-assist falling methods minimized breakage and provided for cleaner yarding as compared to conventional timber falling.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Urheberrechts-Erklärung
Publisher
Peer Reviewed
Language
Replaces

Beziehungen

Parents:

This work has no parents.

In Collection:

Artikel