Linking Within Stand Variability to Timber Growth Characteristics for Site-Specific Forest Management

2007 ◽  
Author(s):  
Christian J Brodbeck ◽  
John P Fulton ◽  
Joey Shaw ◽  
Timothy P McDonald ◽  
Donn Rodekohr
Keyword(s):  
Forest Management ◽  
Growth Characteristics ◽  
Site Specific ◽  
Timber Growth

Making operational plans relevant to forest user groups in the Mid-Hills of Nepal

2021 ◽  
Vol 23 (2) ◽  
pp. 182-196
Author(s):  
L. Puri ◽  
I. Nuberg ◽  
B. Ostendorf ◽  
E. Cedamon
Keyword(s):  
Forest Management ◽  
Management Practices ◽  
Community Forestry ◽  
Group Discussions ◽  
Site Specific ◽  
Community Forests ◽  
User Groups ◽  
Forest User Groups ◽  
Forest User

Operational plans are a key element in community forestry in Nepal. However, the relevance of these plans to forest user groups (FUGs) is under scrutiny. This study investigates the usefulness of operational plans against the backdrop of knowledge, capacity and management practices of FUGs. Data were collected from 13 operational plans, 16 group discussions involving forestry professionals, and 218 household interviews in two villages of Lamjung district in Nepal. Whereas operational plans should specifically reflect site specific objectives and activities of forest management, the survey revealed identical objectives across the community forests. Current operational plans are technically complex, poorly linked to the place-based context of livelihood needs and less useful to the FUGs to inform and enhance forest management. This study proposes to differentiate community forests according to their production potentials, and revise the operational plans by shortening the elements that have little or no relevance to the FUGs.

A Portfolio Approach for the Forest Asset Dynamic Management under Stochastic Timber Price and Growth

2013 ◽  
Vol 295-298 ◽  
pp. 2338-2342
Author(s):  
Jian Wu Xiao ◽  
Hong Zhai
Keyword(s):  
Forest Management ◽  
Stochastic Control ◽  
Optimal Strategy ◽  
Commodity Price ◽  
Control Model ◽  
Dynamic Management ◽  
Dynamic Strategy ◽  
Optimal Dynamic ◽  
Portfolio Approach ◽  
Timber Growth

Considering the valuation of forest stands based on revenue from wood sales, concession policy (such as carbon subsidies) and associated costs, the paper focuses on the stochastic control model to study the forest asset dynamic management. The key contribution is to find the optimal dynamic strategy about harvesting quantity in the continual and multiple periods in conditions of stochastic commodity price and timber growth by using portfolio approach. Finally, an analytical optimal strategy is obtained to analyze the quantification relations through which some important conclusions about the optimal forest management can be drawn.

User information needs for forest management site classification in Manitoba

1992 ◽  
Vol 68 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Russell E. Wells
Keyword(s):  
Forest Management ◽  
Information Needs ◽  
Management Plan ◽  
User Needs ◽  
Site Classification ◽  
Forest Site ◽  
Site Specific ◽  
Professional Management ◽  
Site Mapping ◽  
Classification Information

Forest inventory in Manitoba reveals that considerable forest harvest expansion is possible because of present underutilization. Although underutilization does occur in some forest sections, Manitoba's 20-year forest management plan predicts shortages of softwood in currently utilized sections before the end of this decade. Better forest management is recognized as one way to overcome these expected shortages. Development of an effective forest management site classification system is seen as a necessary basis for this implementation. As a prerequisite to the development of such a system, current and future site classification information needs of professional management foresters in Manitoba were surveyed by means of a questionnaire and personal interviews. They were asked to identify the kinds of site classification information needed for different forest management programs and decisions, and to further qualify these in terms of location, scale and temporal suitability. Results of this survey indicate that a system involving both mapping and site-specific approaches is needed. Keywords: forest site classification, Manitoba, forest management, user needs, site mapping

La forêt pérenne: aimable rêverie sylvicole ou concept d'avenir? (essai) | The continuous cover forest: a pleasant forestry daydream or a concept for the future? (essay)

2009 ◽  
Vol 160 (6) ◽  
pp. 132-136 ◽  
Author(s):  
Jean-Philippe Schütz
Keyword(s):  
Forest Management ◽  
Forest Cover ◽  
Growth Characteristics ◽  
Individual Growth ◽  
Natural Processes ◽  
Maximum Profit ◽  
Continuous Forest ◽  
Forestry Management ◽  
High Level ◽  
Ecology And Economy

The name alone of continuous cover forest demonstrates the very essence of a concept of forestry management whereby there is continuous forest cover and sudden jumps between the generations are avoided. Although this concept is highly modern, it was developed by Alfred Möller in Prussia in about 1920 in opposition to the mechanistic concept of gaining maximum profit from the soil. The ecosystem and its constituents, the trees with their individual growth characteristics, represent a production system combining ecology and economy using the natural processes of autoregulation known as bio-rationalisation. The application of the concept does however demand a high level of silvicultural competence. For finally the forester himself must determine, on the spot and with the evidence before him, which method of treatment will be best suited to the situation, taking into consideration all the prevailing conditions on the site and the structure of the stands present. This concept, which is highly suitable for multipurpose forest management, is perfectly adapted to the Swiss ecoforestry.

scholarly journals A Watershed Perspective in a Site Specific World

1987 ◽  
Vol 63 (4) ◽  
pp. 246-249
Author(s):  
D. J. Wilford
Keyword(s):  
Forest Management ◽  
Site Specific ◽  
A Site

A watershed perspective is essential to good forest management. The considerations that this entails are discussed and recommendations made.

scholarly journals PERAN KESATUAN PENGELOLAAN HUTAN (KPH) DALAM IMPLEMENTASI PERHUTANAN SOSIAL (Studi di KPH Produksi Kerinci, Provinsi Jambi dan KPH Lindung Sijunjung, Provinsi Sumatera Barat)

2021 ◽  
Vol 18 (2) ◽  
pp. 145-160
Author(s):  
Wira Fitria ◽  
Didik Suharjito ◽  
Sulistya Ekawati
Keyword(s):  
Forest Management ◽  
Correlation Analysis ◽  
Data Processing ◽  
Significant Role ◽  
Pearson Correlation ◽  
Social Forestry ◽  
Scoring Method ◽  
Site Specific ◽  
Pearson Correlation Analysis

Forest Management Unit (FMU)’s one of the site-level agencies that has information on forest biophysical condition and community socio-culture, so it has a significant role on Social Forestry (SF)’s success. The willingness and role of the FMU in the implementation of the SF program as an organization at the site level needs to be studied, especially from the perspective of the stakeholders involved in the SF. This study examines the role of FMUs to implement Social Forestry (SF) programs through the perspective of the parties involved in SF. This role is measured through the attitudes, orientation and actions shift of FMUs towards SF. The research hypothesis is that FMU’s roles through attitudes, orientations and actions influence the outcomes of social forestry. The study uses a quantitative approach involving 60 respondents with purpossive sampling, data processing and analysis using a scoring method to see the attitudes, orientations and actions shift and success of SF, and Pearson correlation analysis to confirmed the influence of FMU’s roles through attitudes, orientations and actions on SF’s success. The results of the study revealed that the attitudes of Production FMU Kerinci and Protection FMU Sijunjung support SF, while the FMUs' actions are based on site specific priorities. Under these conditions the shifting of FMUs attitudes and actions can explain the success of the SF in social and economy field.

scholarly journals Analysis of the growth characteristics of a 450-year-old silver fir tree

2015 ◽  
Vol 67 (1) ◽  
pp. 155-160
Author(s):  
Damjan Pantic ◽  
Milan Medarevic ◽  
Matthias Dees ◽  
Dragan Borota ◽  
Bojan Tubic ◽  
...  
Keyword(s):  
Forest Management ◽  
Tree Species ◽  
Ring Width ◽  
Growth Characteristics ◽  
Silver Fir ◽  
Average Height ◽  
Forest Site ◽  
Average Growth ◽  
Wide Range ◽  
Selection Forest

The growth characteristics of silver fir are of high importance for selection forest management, and for the current aims laid out in Serbia?s forest management focused on increasing the share of silver firs in Serbia?s growing stock. With the objective of increasing the understanding of the growth characteristics of silver fir, the growth of two silver fir trees felled during forest site production research on Mt. Goc, located in Central Serbia, have been analyzed. Both trees showed significant differences in their growth dynamics over long periods as results of micro-site and micro-stand effects (primarily ambient light regime). The common growth characteristic of the two trees, a 450-year-old tree as the main study object (labeled Tree A) and a 270-year-old Tree B is a long stagnation stage. For Tree A the latent phase, with small interruptions, lasted 410 years; one phase lasted 330 years in continuity, which is the longest period of silver fir stagnation recorded in Europe. Tree B showed a long-lasting stagnation stage that lasted 170 years. The long stagnation stage of Tree A, characterized by an average diameter increment of 1.4 mm/year (average growth ring width of 0.7 mm) and an average height increment of 0.08 m/year, shows the extraordinary silver fir capacity for physiological survival in complete shade. This study adds to the existing knowledge of the shade tolerance of the silver fir. Therefore, the silver fir belongs to the group of extremely shade-tolerant tree species. This characteristic makes silver fir an irreplaceable tree species in the selection forest structure. It offers a wide range of silvicultural flexibility in the management of these forests, and is applicable to silver fir selection Serbia?s forests.

Large-cluster and combined fluorescent and gold immunoprobes

1996 ◽  
Vol 54 ◽  
pp. 892-893
Author(s):  
Richard D. Powell ◽  
James F. Hainfeld ◽  
Carol M. R. Halsey ◽  
David L. Spector ◽  
Shelley Kaurin ◽  
...  
Keyword(s):  
Metal Cluster ◽  
Sulfonyl Chloride ◽  
Gel Filtration ◽  
Cross Linking ◽  
Site Specific ◽  
Fab Fragments ◽  
Cluster Label ◽  
Covalently Linked ◽  
Texas Red ◽  
Fold Excess

Two new types of covalently linked, site-specific immunoprobes have been prepared using metal cluster labels, and used to stain components of cells. Combined fluorescein and 1.4 nm “Nanogold” labels were prepared by using the fluorescein-conjugated tris (aryl) phosphine ligand and the amino-substituted ligand in the synthesis of the Nanogold cluster. This cluster label was activated by reaction with a 60-fold excess of (sulfo-Succinimidyl-4-N-maleiniido-cyclohexane-l-carboxylate (sulfo-SMCC) at pH 7.5, separated from excess cross-linking reagent by gel filtration, and mixed in ten-fold excess with Goat Fab’ fragments against mouse IgG (obtained by reduction of F(ab’)2 fragments with 50 mM mercaptoethylamine hydrochloride). Labeled Fab’ fragments were isolated by gel filtration HPLC (Superose-12, Pharmacia). A combined Nanogold and Texas Red label was also prepared, using a Nanogold cluster derivatized with both and its protected analog: the cluster was reacted with an eight-fold excess of Texas Red sulfonyl chloride at pH 9.0, separated from excess Texas Red by gel filtration, then deprotected with HC1 in methanol to yield the amino-substituted label.

The challenge of detecting modifications on proteins

2020 ◽  
Vol 64 (1) ◽  
pp. 135-153 ◽  
Author(s):  
Lauren Elizabeth Smith ◽  
Adelina Rogowska-Wrzesinska
Keyword(s):  
Mass Spectrometry ◽  
Protein Function ◽  
Chemical Properties ◽  
Lysine Acetylation ◽  
Mass Determination ◽  
Post Translational Modifications ◽  
Site Specific ◽  
The Common

Abstract Post-translational modifications (PTMs) are integral to the regulation of protein function, characterising their role in this process is vital to understanding how cells work in both healthy and diseased states. Mass spectrometry (MS) facilitates the mass determination and sequencing of peptides, and thereby also the detection of site-specific PTMs. However, numerous challenges in this field continue to persist. The diverse chemical properties, low abundance, labile nature and instability of many PTMs, in combination with the more practical issues of compatibility with MS and bioinformatics challenges, contribute to the arduous nature of their analysis. In this review, we present an overview of the established MS-based approaches for analysing PTMs and the common complications associated with their investigation, including examples of specific challenges focusing on phosphorylation, lysine acetylation and redox modifications.

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