scholarly journals Patterns of timber harvesting and its relationship with sustainable forest management in the western Amazon, Ecuador case

2017 ◽  
Vol 36 (5) ◽  
pp. 433-453 ◽  
Author(s):  
S. Bonilla-Bedoya ◽  
Anabel Estrella-Bastidas ◽  
Milton Ordoñez ◽  
Alvaro Sánchez ◽  
Miguel Angel Herrera
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Timber Harvesting

scholarly journals Residual Stand Damage under Different Harvesting Methods and Mitigation Strategies

2021 ◽  
Vol 13 (14) ◽  
pp. 7641
Author(s):  
Anil Raj Kizha ◽  
Evan Nahor ◽  
Noah Coogen ◽  
Libin T. Louis ◽  
Alex K. George
Keyword(s):  
Forest Management ◽  
Sugar Maple ◽  
Sustainable Forest Management ◽  
Timber Harvesting ◽  
Mitigation Strategies ◽  
Left Behind ◽  
Significant Difference ◽  
Stand Damage ◽  
Residual Stand Damage ◽  
Silvicultural Prescriptions

A major component of sustainable forest management are the stands left behind after the logging operation. Large mechanized harvesting equipment involved in current forest management can inflict damage on residual trees; and can pose a risk of mortality from diseases, natural calamities, and/or degrade future economic value. The primary objective of this study was to evaluate the residual stand damage under different harvesting methods and silvicultural prescriptions i.e., crop tree release (CTR), diameter limit cut (DLC), and overstory removal (OSR). The second objective was to evaluate the intensity and frequency of damage occurring on the bole, canopy, and root at tree and stand level. The third objective was to document strategies adopted globally to minimize stand damage due to timber harvesting. Five harvest blocks implementing three silvicultural prescriptions, were selected as the treatments across two different industrial timberlands in central and northern Maine (Study Site (SS) I and II, respectively). A hybrid cut-to-length (Hyb CTL) and whole-tree (WT) harvesting method were employed for conducting the harvest in SS I and II, respectively. Systematic transect sampling was employed to collect information on type, frequency, and intensity of damages. The inventory captured 41 and 8 damaged trees per hectare with 62 and 22 damages per hectare from SS I and SS II respectively. Bole damage was the most frequent damage across all treatments. The Hyb CTL had lower damage density (damage per ha) and severity compared to WT. The average number of trees damaged per ha was higher for CTR prescriptions compared to DLC. There were no significant differences in the height of the damages from the ground level between treatments within each study site; however, there was a significant difference between the study sites. Species damaged was directly related to the residual trees left behind and was dominated by American beech, yellow birch, sugar maple, and eastern hemlock. Finally, the study provides strategies that can be adopted at different forest managerial phases to mitigate residual stand damage.

scholarly journals Application of harvester technologies of timber logging in the process-oriented environment

2009 ◽  
Vol 57 (4) ◽  
pp. 25-30
Author(s):  
Pavel Máchal ◽  
Luboš Bartoš
Keyword(s):  
Forest Management ◽  
Production Rate ◽  
Sustainable Forest Management ◽  
Timber Harvesting ◽  
Typical Feature ◽  
Environmental Burden ◽  
Process Oriented ◽  
High Level

Harvester technologies of timber logging currently represent the high spot of technologies used in forestry for timber harvesting and forwarding. A typical feature of the “harvester– forwarder” combination is production rate, which is many times higher than in the commonly used technology of “power chainsaw–tractor” (Lukáč, T., 2005). Other major features prevailing in harvester technologies include an appreciably high level of work hygiene and a significant reduction of environmental burden, which is certainly beneficial for the environment.Harvester technologies of timber logging are currently an integral part of sustainable forest management.This paper focuses on finding options for the application of harvester technologies in selected entities based on the analysis of selected factors that can be greatly affected by the technologies.

Bodenschutz im Wald – Annäherung an ein Wahrnehmungsproblem (Essay) | Soil protection in forests – approaching a problem of perception (essay)

2010 ◽  
Vol 161 (12) ◽  
pp. 482-488
Author(s):  
Franz Borer
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Soil Formation ◽  
Timber Harvesting ◽  
High Tech ◽  
Soil Protection ◽  
Formation Processes ◽  
Soil System ◽  
Protection Measures ◽  
The Impact

Sustainable forest management is totally dependent on an intact production base such as the soil. Today's soil has been shaped by soil formation processes over hundreds and thousands of years in the context of various natural cycles. In contrast to these very slow soil formation processes, timber harvesting methods have evolved within a few decades from manual harvesting to high-tech harvesting with heavy machinery. The impact of these on the soil structure is comparable to that of the ice sheets during the last glaciation. The consequences of this development are not easily visible to the eye. But there is the threat of irreversible damages in the form of soil compaction. Now what about sustainability, this fundamental requirement that wood production can be maintained over many tree generations keeping the production base intact? What about the responsibility of forest owners and managers for future forest stands to the coming generations of people? The knowledge exists about the soil processes and the possible damages caused by overstraining the natural limits of the soil system. There are also guidelines for careful forest management even with modern machinery. Rejecting wood harvesting techniques with integrated state-of-the-art soil protection measures purely on economic grounds is incompatible with sustainable thinking.

scholarly journals Impact Assessment of Timber Harvesting Operations for Enhancing Sustainable Management in a Secondary Atlantic Forest

2019 ◽  
Vol 11 (22) ◽  
pp. 6272
Author(s):  
Pedro C. Britto ◽  
Dirk Jaeger ◽  
Stephan Hoffmann ◽  
Renato C. G. Robert ◽  
Alexander C. Vibrans ◽  
...  
Keyword(s):  
Forest Management ◽  
Atlantic Forest ◽  
Tree Species ◽  
Sustainable Forest Management ◽  
Basal Area ◽  
Timber Harvesting ◽  
Damage Maps ◽  
Harvesting Method ◽  
Environmentally Sound ◽  
Forest Biome

Conservation and management of forest ecosystems are currently largely conflicting goals in the Brazilian Atlantic Forest biome. At present, all parts of the Atlantic Forest are protected and commercial logging is highly restricted. However, sustainable forest management systems can offer significant income opportunities for landholders, and thereby actively support the process of ecosystem rehabilitation and protection of the Atlantic Forest. This research is intended to contribute to enhancing the development of environmentally sound forest management alternatives in the Atlantic Forest biome. Through a case study, the harvesting impact of a conventional harvesting method (CM) was evaluated and compared with an alternative and improved harvesting method (AM), performed by a well-trained professional chainsaw operator experienced in reduced impact logging techniques, and included the use of a snatch block and a skidding cone. Following a full pre-harvest inventory, 110 different tree species were identified. The harvesting impact on the residual stand was classified and evaluated through a successive post-harvest inventory. Damage maps were developed based on interpolation of tree damage intensities with the triangular irregular networks (TIN) methodology. Our results showed noticeable high rates of tree hang-ups, observed for both harvesting methods. Furthermore, the harvesting damaged trees mainly in the lower diameter at breast height (DBH) classes. In comparison to winching, the felling process caused most of the damage to remnant trees for both methods, at 87% (CM) and 88% (AM). The number of damaged trees (above 11.9 cm DBH) per harvested tree, for CM, ranged from 0.8 trees to 2.5 trees and, for AM, ranged from 0.6 trees to 2.2 trees. Improvements of the AM method (operator skills, skidding cone and snatch block) over CM allowed for a reduction of the damaged basal area, a reduction of the “high damaged area” per plot, and a reduction of the winching disturbed ground area. Nonetheless, a suitable harvesting system should consider further improvements in the felling technique, and additionally integrate the local knowledge of CM regarding forest and tree species with the technical improvements of AM.

scholarly journals Productivity assessment of timber harvesting techniques for supporting sustainable forest management of secondary Atlantic Forests in southern Brazil

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
Pedro Caldas Britto ◽  
Dirk Jaeger ◽  
Stephan Hoffmann ◽  
Renato Cesar Gonçalves Robert ◽  
Alfredo Celso Fantini ◽  
...  
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Timber Harvesting ◽  
Southern Brazil ◽  
Harvesting Techniques ◽  
Productivity Assessment

Strategic Options for Forestry Development in Asian-Pacific Countries

1991 ◽  
Vol 2 (4) ◽  
pp. 368-379 ◽  
Author(s):  
S.T. Mok
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Regional Cooperation ◽  
Timber Harvesting ◽  
Forest Resources ◽  
Common Features ◽  
Management And Development ◽  
Strategic Options ◽  
Resources Conservation ◽  
Asian Pacific

Asian-Pacific is ecologically and economically diverse, but, the countries within it have some common features. Generally, rapid depletion of fuelwood, timber harvesting and human settlements have caused serious environmental degradation. Sustainable forest management and development based on a conservational approach is probably the most realistic solution. Regional cooperation should be encouraged to develop strategic options and appropriate technologies, skills, and information required for effective forest resources conservation.

BUNUK: PENGETAHUAN DAN PRAKTEK ATONI-METO DALAM TATA KELOLA HUTAN

2019 ◽  
Vol 10 (1) ◽  
pp. 83-96
Author(s):  
Yohanes Victor Lasi Usbobo
Keyword(s):  
Forest Management ◽  
Indigenous People ◽  
Sustainable Forest Management ◽  
Customary Law ◽  
Environmental Damage ◽  
Technical Knowledge ◽  
Community Members ◽  
The Earth ◽  
Knowledge And Practice ◽  
West Timor

The implementation of todays forest management that based on formal-scientific knowledge and technical knowledge seems to fail to protect the forest from deforestation and the environmental damage. Decolonialisation of western knowledge could give an opportunity to identify and find the knowledge and practices of indigenous people in sustainable forest management. Forest management based on the indigenous knowledge and practices is believed easy to be accepted by the indigenous community due to the knowledge and practice is known and ‘lived’ by them. The Atoni Pah Meto from West Timor has their own customary law in forest management that is knows as Bunuk. In the installation of Bunuk, there is a concencus among the community members to protect and preserve the forest through the vow to the supreme one, the ruler of the earth and the ancestors, thus, bunuk is becoming a le’u (sacred). Thus, the Atoni Meto will not break the bunuk due to the secredness. Adapting the bunuk to the modern forest management in the Atoni Meto areas could be one of the best options in protecting and preserving the forest.

Nachhaltigkeit im Wald – vor und hinter der Welle der Globalisierung | Sustainable Forest Management – In Front and Behind the Wave of Globalization

2000 ◽  
Vol 151 (12) ◽  
pp. 502-507
Author(s):  
Christian Küchli
Keyword(s):  
Forest Management ◽  
Cultural Landscape ◽  
Sustainable Forest Management ◽  
Essential Element ◽  
Specific Situation ◽  
The South ◽  
The North ◽  
Time Space ◽  
Starting Point ◽  
The Impact

Are there any common patterns in the transition processes from traditional and more or less sustainable forest management to exploitative use, which can regularly be observed both in central Europe and in the countries of the South (e.g. India or Indonesia)? Attempts were made with a time-space-model to typify those force fields, in which traditional sustainable forest management is undermined and is then transformed into a modern type of sustainable forest management. Although it is unlikely that the history of the North will become the future of the South, the glimpse into the northern past offers a useful starting point for the understanding of the current situation in the South, which in turn could stimulate the debate on development. For instance, the patterns which stand behind the conflicts on forest use in the Himalayas are very similar to the conflicts in the Alps. In the same way, the impact of socio-economic changes on the environment – key word ‹globalisation› – is often much the same. To recognize comparable patterns can be very valuable because it can act as a stimulant for the search of political, legal and technical solutions adapted to a specific situation. For the global community the realization of the way political-economic alliances work at the head of the ‹globalisationwave›can only signify to carry on trying to find a common language and understanding at the negotiation tables. On the lee side of the destructive breaker it is necessary to conserve and care for what survived. As it was the case in Switzerland these forest islands could once become the germination points for the genesis of a cultural landscape, where close-to-nature managed forests will constitute an essential element.

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