scholarly journals SAWN TIMBER MARKET AND THE IMPACT OF SUSTAINABLE FOREST MANAGEMENT PRACTICES IN PENINSULAR MALAYSIA

2018 ◽  
Vol 30 (1) ◽  
pp. 9-24
Author(s):  
Noraida AW ◽  
Abdul-Rahim AS ◽  
Mohd-Shahwahid HO
Keyword(s):  
Forest Management ◽  
Management Practices ◽  
Sustainable Forest Management ◽  
Peninsular Malaysia ◽  
Forest Management Practices ◽  
Sawn Timber ◽  
Timber Market ◽  
The Impact

scholarly journals Effects of forest management practices on red-shouldered hawks in Ontario

2004 ◽  
Vol 80 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Brian J Naylor ◽  
James A Baker ◽  
Kandyd J Szuba
Keyword(s):  
Forest Management ◽  
Management Practices ◽  
Nest Success ◽  
Basal Area ◽  
Forest Management Practices ◽  
Effectiveness Monitoring ◽  
Hardwood Trees ◽  
Negative Effect ◽  
Special Concern ◽  
The Impact

The red-shouldered hawk (Buteo lineatus) is a species of special concern throughout its northern range. It is considered to be sensitive to forest management practices because it requires dense mature hardwood forest for nesting. In Ontario, guidelines that prescribe spatial and temporal buffers were developed in about 1990 to mitigate the potential impacts of harvesting. We monitored 84 nesting areas of red-shouldered hawks in central and southeastern Ontario from 1988 to 1995 to describe the effects of forest management practices on the occupancy and productivity of nesting areas, to evaluate the effectiveness of the guidelines, and recommend modifications as appropriate. The number of years nesting areas had been used previously had a significant negative effect on activity status, but not on nest success. Nesting areas harvested with application of the guidelines had a similar probability of being active to those in uncut forest but nesting areas harvested without application of the guidelines did not. Neither the area nor proximity of selection cuts with a moderate to high residual basal area ( ≥18 m2/ha) affected the activity status of nesting areas. In contrast, the area and proximity of heavy cuts (shelterwood cuts or selection cuts with a residual basal area of 14–16 m2/ha) appeared to have a negative effect on activity status. When nesting areas were active, the proximity and amount of harvesting did not influence nest success. We concluded that the impact of harvesting on the activity status of nesting areas could be mitigated by prohibiting heavy cuts within 300 m of active nests and retaining ≥20 ha of forest dominated by tolerant and mid-tolerant hardwood trees, ≥18 m tall, with ≥70% canopy closure around nests. Key words: Buteo lineatus, effectiveness monitoring, habitat guidelines, nest success, Ontario, red-shouldered hawk, forest management, selection, shelterwood, tolerant hardwoods

scholarly journals Restoration of Natural Forests After Severe Wind Disturbance in a Cold, Snowy Region With a Deer Population: Implications From 15 Years of Field Experiments

2021 ◽  
Vol 4 ◽  
Author(s):  
Junko Morimoto ◽  
Mio Sugiura ◽  
Miho Morimoto ◽  
Futoshi Nakamura
Keyword(s):  
Forest Management ◽  
Plant Communities ◽  
Management Practices ◽  
Wind Disturbance ◽  
Natural Forests ◽  
Deer Browsing ◽  
Salvage Logging ◽  
Deer Population ◽  
Forest Management Practices ◽  
The Impact

Questions have been raised about the application of conventional post-windthrow forest practices such as salvage logging, site preparation, and afforestation in response to the increase in wind disturbance caused by climate change. In particular, it is necessary to identify effective forest management practices that consider the pressure from deer browsing in forests in cold, snowy regions because the population of ungulates is expected to increase. The impacts of legacy destruction, i.e., the destruction of advance regeneration, microsites, and soil structure, caused by conventional post-windthrow practices have rarely been assessed separately from the impacts of subsequent deer browsing on forest regeneration or evaluated based on sufficiently long monitoring periods to assess vegetation succession. This lack of studies is one reason that alternative forest management practices to salvaging and planting have not been proposed. We conducted a field experiment at a large-scale windthrow site with a deer population to (1) assess the impact of legacy destruction and deer browsing on vegetation biomass and species composition after 15 years and (2) identify the effects of legacy retention. The study design allowed us to distinguish between and measure the impact of legacy destruction and that of subsequent deer browsing during a 15-year period. The results revealed the following: (1) Salvage logging and site preparation suppressed the development of biomass of shrub and tree layers in forested areas where harvest residues were piled up and shifted the plant communities in these areas to herbaceous plant communities. (2) Subsequent deer browsing suppressed the development of the biomass of shrub and tree layers throughout the forested site and shifted herbaceous communities to ruderal communities dominated by alien species; and 3. Compared with salvaging and planting, legacy retention enabled the windthrow sites to more quickly develop into a stand with characteristics similar to that of a mature, natural forest. Forest management practices that consider the presence of deer are necessary. We propose a policy shift from planting trees after salvaging to leaving downed trees to regenerate natural forests, unless there is concern about insect damage to the remaining forestry land in the vicinity.

scholarly journals Oxidizable fractions of soil organic carbon in Caatinga forest submitted to different forest managements

2018 ◽  
Vol 48 (10) ◽  
Author(s):  
Suellen Gomes Monteiro Batista ◽  
Patrícia Anjos Bittencourt Barreto-Garcia ◽  
Alessandro de Paula ◽  
Divino Levi Miguel ◽  
Willyan Charles Amaral Batista
Keyword(s):  
Forest Management ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Management Practices ◽  
Sustainable Forest Management ◽  
Conservation Status ◽  
Short Term ◽  
Selective Cutting ◽  
Clear Cutting ◽  
Forest Management Practices

ABSTRACT: One of the main alternatives for the rational exploitation of the Caatinga biome’s natural resources is sustainable forest management. Soil organic carbon (SOC) and its fractions can be used to evaluate the conservation status of forest ecosystems after anthropic interventions. Therefore, the objective of this study was to evaluate the short-term effect of different forest management practices on the distribution of SOC fractions in the Caatinga area located in Contendas do Sincorá National Forest (BA). Three forest management practices (clear cutting, selective cutting by diameter and selective cutting by species) were evaluated, using the unmanaged Caatinga as a control. Soil samples were collected at the 0-10cm depth. The SOC was fractionated into four fractions (F1’, F1, F2 and F3), adopting the chemical wet oxidation method based on increasing degrees of oxidation. The forest management caused a short-term change in the oxidizable fraction distribution of the SOC, which was reflected by a reduction of the most labile fractions.

Different management practices impact on CO2 and H2O budget of wind disturbed forest sites- 5-year dataset

2020 ◽  
Author(s):  
Klaudia Ziemblinska ◽  
Janusz Olejnik ◽  
Marek Urbaniak ◽  
Stanislaw Malek
Keyword(s):  
Forest Management ◽  
Forest Restoration ◽  
Management Practices ◽  
Soil Cover ◽  
Soil Conditions ◽  
Organic Layer ◽  
Forest Site ◽  
Forest Management Practices ◽  
Soil Preparation ◽  
The Impact

<p>There is evidence of increasing severity of extreme meteorological events, which due to climate warming are also more frequent than in the past few decades. Any disturbances (either natural or anthropogenic) exert a significant influence on the forest’s functioning. In Canada and the USA, fires and insect outbreaks cause the greatest damage while in Europe wind disturbances are the main threat. Since in Poland the majority of forests are managed by the State Forests, after such events disturbed areas are almost immediately designated for reforestation. While natural regeneration still contributes the least to forest restoration, the most common practices in our country include harvesting, soil preparation (ploughing) and manual seedlings introduction, which in this sense is similar to clear-cut’s management. </p><p>Once such an event happened in Poland two EC stations were set up in the area of an 80-year old pine forest, which had been wiped out by a tornado in July 2012, to asses the impact of forest management. To date, there have been more than 5 full years of continuous carbon and energy fluxes measurement, allowing insight into forest regeneration patterns due to manual reforestation, as well as differences in CO<sub>2</sub> losses connected to chosen treatments. The two sites (Tlen I and Tlen II) differ mostly in terms of soil preparation – at Tlen I site soil was ploughed before replanting and at Tlen II soil cover remained almost intact. Additionally, at the second location, only trunks and main branches were harvested, while all uprooted stumps were left to decompose. Both meteorological and soil conditions have been investigated, with most of them not being significantly different, which allowed drawing the conclusion that observed differences in GHGs balance <span>are most likely related to chosen forest management practices</span>. Thorough analysis of quality checked EC data revealed that in 5-year perspective the application of traditional method (Tlen I site), mainly due to soil ploughing, resulted in much less total CO<sub>2</sub> loss to the atmosphere, reaching C-neutrality point in only 6 years after the damage as well as better seedling growth in general in comparison to the technique, where the soil cover was not disrupted. Moreover, it seems that furrows created at the conventionally managed forest site (“double” organic layer) serve as crucial water reservoirs during water shortage periods, preventing from the pine plantation damage caused by prolonged droughts.</p><p>This work advances our understanding of how different forest management practices can help to sustain the least CO<sub>2</sub> losses on the example of wind-disturbed forests. Although, it has to be remembered that long-term studies are needed to point the best option from the perspective of climate change mitigation. </p>

Forest processes from stands to landscapes: exploring model forecast uncertainties using cross-scale model comparison

2010 ◽  
Vol 40 (12) ◽  
pp. 2345-2359 ◽  
Author(s):  
Michael J. Papaik ◽  
Andrew Fall ◽  
Brian Sturtevant ◽  
Daniel Kneeshaw ◽  
Christian Messier ◽  
...  
Keyword(s):  
Forest Management ◽  
Forest Dynamics ◽  
Management Practices ◽  
Sustainable Forest Management ◽  
Scale Model ◽  
Landscape Model ◽  
Tree Model ◽  
Individual Tree ◽  
Forest Management Practices ◽  
Landscape Models

Forest management practices conducted primarily at the stand scale result in simplified forests with regeneration problems and low structural and biological diversity. Landscape models have been used to help design management strategies to address these problems. However, there remains a great deal of uncertainty that the actual management practices result in the desired sustainable landscape structure. To investigate our ability to meet sustainable forest management goals across scales, we assessed how two models of forest dynamics, a scaled-up individual-tree model and a landscape model, simulate forest dynamics under three types of harvesting regimes: clearcut, gap, and uniform thinning. Althougth 50–100 year forecasts predicted average successional patterns that differed by less than 20% between models, understory dynamics of the landscape model were simplified relative to the scaled-up tree model, whereas successional patterns of the scaled-up tree model deviated from empirical studies on the driest and wettest landtypes. The scale dependencies of both models revealed important weaknesses when the models were used alone; however, when used together, they could provide a heuristic method that could improve our ability to design sustainable forest management practices.

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