Assessing long-term effectiveness of green-tree retention

2019 ◽  
Vol 448 ◽  
pp. 543-548 ◽  
Author(s):  
Raul Rosenvald ◽  
Piret Lõhmus ◽  
Riinu Rannap ◽  
Liina Remm ◽  
Katrin Rosenvald ◽  
...  
Keyword(s):  
Tree Retention ◽  
Green Tree Retention

CFIRP: What we learned in the first ten years

1999 ◽  
Vol 75 (3) ◽  
pp. 431-434 ◽  
Author(s):  
Carol L. Chambers ◽  
William C. McComb ◽  
John C. Tappeiner II ◽  
Loren D. Kellogg ◽  
Rebecca L. Johnson ◽  
...  
Keyword(s):  
Pseudotsuga Menziesii ◽  
Group Selection ◽  
Structural Features ◽  
Human Dimensions ◽  
Douglas Fir ◽  
Small Scale ◽  
Tree Retention ◽  
Green Tree Retention ◽  
Patch Group

In response to public dissatisfaction with forest management methods, we initiated the College of Forestry Integrated Research Project (CFIRP) to test alternative silvicultural systems in Douglas-fir (Pseudotsuga menziesii) stands in western Oregon. We compared costs and biological and human responses among a control and three replicated silvicultural alternatives to clearcutting that retained structural features found in old Douglas-fir forests. Treatments were applied within 8- to 15-ha stands and attempted to mimic crown fires (modified clearcut), windthrow (green tree retention), and small-scale impacts such as root rot diseases (small patch group selection). We also compared costs in three unreplicated treatments (large patch group selection, wedge cut, and strip cut). Each treatment included differences in the pattern of retained dead trees (snags), as either scattered individuals or as clumps. Good communication among researchers and managers, a long-term commitment to the project, and careful documentation of research sites and data are important to the success of long-term silvicultural research projects. To date, over 30 publications have resulted from the project. Key words: alternative silviculture, data management, Douglas-fir, green tree retention, harvesting costs, human dimensions, Oregon, Pseudotsuga menziesii, recreation, wildlife

Green Tree Retention in Fennoscandian Forestry

2001 ◽  
Vol 16 (sup003) ◽  
pp. 79-90 ◽  
Author(s):  
Ilkka Vanha-Majamaa ◽  
Jyrki Jalonen
Keyword(s):  
Tree Retention ◽  
Green Tree Retention

Response of terrestrial small mammals to varying amounts and patterns of green-tree retention in Pacific Northwest forests

2007 ◽  
Vol 251 (3) ◽  
pp. 142-155 ◽  
Author(s):  
Robert A. Gitzen ◽  
Stephen D. West ◽  
Chris C. Maguire ◽  
Tom Manning ◽  
Charles B. Halpern
Keyword(s):  
Pacific Northwest ◽  
Small Mammals ◽  
Tree Retention ◽  
Green Tree Retention

Orchid abundance in hemiboreal forests: stand-scale effects of clear-cutting, green-tree retention, and artificial drainage

2011 ◽  
Vol 41 (6) ◽  
pp. 1352-1358 ◽  
Author(s):  
Asko Lõhmus ◽  
Tiiu Kull
Keyword(s):  
Scale Effects ◽  
Current Knowledge ◽  
Timber Harvesting ◽  
Clear Cutting ◽  
Artificial Drainage ◽  
Tree Retention ◽  
Green Tree Retention ◽  
Retention Trees ◽  
The Impact ◽  
Site Types

The current knowledge on the impact of forest management on plant species of conservation concern is poor. We asked how three basic silvicultural techniques (clear-cutting, green-tree retention, and artificial drainage) affect the abundance of terrestrial orchid species and their communities in Estonia, hemiboreal Europe. Fixed-area, fixed-effort surveys (4 h per 2 ha plot) were used in 29 plot clusters representing five site types, with each cluster including plots of four treatments (old growth, mature managed forest, and cutover with and without live retention trees). Altogether 11 species of orchids were recorded in those 116 plots, with the most complete sets of species in artificially drained plots and mature stands. Five species were widely distributed among treatments and site types, but most site types also hosted shade-tolerant orchids (six species) that characteristically disappeared after timber harvesting. Cutover areas (3–7 years after harvest) hosted no species absent from uncut forest stands, and retention of solitary trees had no effect on orchid abundance over clear-cuts. Modern Estonian forest landscapes appear to support viable populations of many orchids, with rotation ages sufficient for population development of the majority of shade-tolerant species.

scholarly journals Green-tree retention and life after the beetle: stand structure and small mammals 30 years after salvage harvesting

Silva Fennica ◽  
2010 ◽  
Vol 44 (5) ◽  
Author(s):  
Thomas Sullivan ◽  
Druscilla Sullivan ◽  
Pontus Lindgren ◽  
Douglas Ransome
Keyword(s):  
Small Mammals ◽  
Stand Structure ◽  
Tree Retention ◽  
Green Tree Retention ◽  
Salvage Harvesting

Immediate tree uprooting after retention-felling in a coniferous boreal forest in Fennoscandia

2006 ◽  
Vol 36 (12) ◽  
pp. 3167-3172 ◽  
Author(s):  
Harri Hautala ◽  
Ilkka Vanha-Majamaa
Keyword(s):  
Forest Type ◽  
Woody Debris ◽  
Post Treatment ◽  
Forest Types ◽  
Tree Retention ◽  
Green Tree Retention ◽  
Coniferous Boreal Forest ◽  
Tree Uprooting ◽  
High Level ◽  
The Continuum

We studied the immediate effects of retention-felling on the occurrence of tree uprooting in two different types of boreal spruce forest in Finland to determine whether susceptibility to uprooting is dependent on the biotope. During the first post-treatment year, 7.1% of the trees in the paludified forest type and 1.8% in the upland forest type were uprooted. During the 2 following post-treatment years, uprooting percentages increased considerably (39.3% in the paludified type and 11.5% in the upland type in year 2; 48.3% in the paludified type and 15.2% in the upland type in year 3). Norway spruce (Picea abies (L.) Karst.), the dominant species in both forest types, was the species most susceptible to uprooting. The high uprooting rate in the paludified groups was probably caused by an interaction between the rocky ground and moist overlying peat layer with the shallow root system of P. abies. As paludified forest biotopes are generally recognized to have high biodiversity, the use of green-tree retention in these biotypes may enhance the continuum and survival of sensitive species. Moreover, because of the high level of uprooting, green-tree retention in paludified forest types can quickly and more naturally help restore levels of coarse woody debris.

Sign in / Sign up

Export Citation Format

Share Document