scholarly journals Solving Multi-Objective Problems for Multifunctional and Sustainable Management in Maritime Pine Forest Landscapes

Climate ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 81 ◽  
Author(s):  
Fernando Pérez-Rodríguez ◽  
Luís Nunes ◽  
João Azevedo
Keyword(s):  
Forest Management ◽  
Net Present Value ◽  
Volume Growth ◽  
Fire Risk ◽  
Multiple Criteria ◽  
Multi Objective ◽  
The North ◽  
Management Plans ◽  
Forest Planning And Management ◽  
User Friendly

Forest management based on sustainability and multifunctionality requires reliable and user-friendly tools to address several objectives simultaneously. In this work we present FlorNExT Pro®, a multiple-criteria landscape-scale forest planning and management computer tool, and apply it in a region in the north of Portugal to find optimized management solutions according to objectives such as maximization of net present value (NPV), volume growth, and carbon storage, and minimization of losses due to fire. Comparisons made among single- and multi-objective solutions were made to explore the range of possible indicators provided by the tool such as carbon sequestered, volume growth, probability of fire occurrence, volume of wood extracted, and evenness of harvesting in the management period. Results show that FlorNExT Pro® is a reliable, flexible, and useful tool to incorporate multiple criteria and objectives into spatially explicit complex management problems and to prepare sustainable and multifunctional forest management plans at the landscape level. FlorNExT Pro® is also suited to guiding and adapting forest management for uncertainty scenarios for the assessment of ecosystem services and fire risk, therefore playing an important role in the maintenance of sustainable landscapes in the south of Europe.

scholarly journals Public participation in British Columbia forest management

2010 ◽  
Vol 86 (6) ◽  
pp. 697-708 ◽  
Author(s):  
H W Harshaw
Keyword(s):  
Decision Making ◽  
British Columbia ◽  
Resource Management ◽  
Forest Management ◽  
Public Participation ◽  
Sustainable Forest Management ◽  
Consensus Building ◽  
Management Plans ◽  
Forest Planning And Management ◽  
Planning Processes

Conceptions and challenges of public participation in British Columbia are reviewed to identify those characteristicsof planning processes that serve to benefit or constrain the interests and needs of public stakeholders. Perspectives onpublic participation, including representative and participatory democracies, and approaches to incorporating publicperspectives in decision-making (i.e., shared decision-making, consensus-building, and interest-based negotiation) arepresented to demonstrate the different approaches (and their benefits and challenges) available for providing opportunitiesfor public participation. Lessons from other natural resource management contexts are distilled and used to evaluatethe BC context. Three principal forest planning and management frameworks (the Commission on Resources and theEnvironment, Land and Resource Management Plans, and sustainable forest management certification) are examinedin light of whether meaningful opportunities for public participation were provided.Key words: public participation, British Columbia, Commission on Resources and the Environment, Land and ResourceManagement Plans, sustainable forest management certification

scholarly journals Estimating the aboveground carbon sequestration and its economic value (case study: Iranian Caspian forests)

2017 ◽  
Vol 63 (No. 11) ◽  
pp. 511-518 ◽  
Author(s):  
Mohammadi Zohreh ◽  
Limaei Soleiman Mohammadi ◽  
Lohmander Peter ◽  
Olsson Leif
Keyword(s):  
Carbon Sequestration ◽  
Net Present Value ◽  
Economic Value ◽  
Volume Growth ◽  
Allometric Equation ◽  
Present Value ◽  
Diameter Increment ◽  
Aboveground Carbon ◽  
The North ◽  
Annual Volume

The aim of the study is to estimate the aboveground carbon sequestration and to determine the economic value of forests in carbon sequestration as a way of mitigating climate change. This research was conducted at Asalem forests in the north of Iran. In order to estimate the amount of annual carbon sequestration, the annual volume growth of stand was determined using the diameter increment data and tariff. The amount of carbon sequestration was estimated based on wood density and using the allometric equation. The carbon model was obtained for each species. The value of sequestrated carbon in stumpage and the net present value of carbon sequestration were determined in order to estimate the economic value of carbon sequestration. Results indicated that the annual volume growth per hectare and the carbon stored are 6.023 m<sup>3</sup>·yr<sup>–1</sup> and 2.307 t·ha<sup>–1</sup>, respectively. Finally, the carbon sequestration value of stumpage and the net present value of carbon sequestration are 11,023.753 and 790.361 (10,000 IRR·t<sup>–1</sup>·ha<sup>–1</sup>), respectively. Our results are very useful in estimating the total economic value of Asalem forests and other Iranian Caspian forests in the future.

scholarly journals Impact of Swiss Needle-Cast on Growth of Douglas-Fir

2011 ◽  
Vol 101 (5) ◽  
pp. 583-593 ◽  
Author(s):  
M. O. Kimberley ◽  
I. A. Hood ◽  
R. L. Knowles
Keyword(s):  
Growth Rate ◽  
New Zealand ◽  
Net Present Value ◽  
Volume Growth ◽  
Douglas Fir ◽  
Stem Volume ◽  
Needle Cast ◽  
Permanent Sample Plots ◽  
The North ◽  
Swiss Needle Cast

Phaeocryptopus gaeumannii, the cause of Swiss needle-cast, is widely distributed in plantations of Douglas-fir in many parts of the world. Nevertheless, information remains limited on its precise effect on stand growth, particularly in relation to regional climate, and on its consequent economic cost. In New Zealand, the spread of P. gaeumannii over a period of ≈30 years following its discovery in 1959 was closely monitored, and the timing of its arrival in different forests is known. This information was coupled with data from permanent sample plots in order to quantify the associated historical growth increment loss. Analyses revealed a steady decline in growth rate over the period from the first appearance of P. gaeumannii to a point when it stabilized at a lower increment level 14 to 20 years later. The cumulative mean reduction was 25% for mean top height, 27% for basal area, and 32% for stem volume. Volume growth rate decline was greater in the North Island (35%) than the South Island (23%) of New Zealand. These reductions in volume growth are estimated to equate to a loss in net present value of $NZ2,620 ha–1 and $NZ1,470 ha–1 for the North and South Islands, respectively, using a discount rate of 6%. Mortality did not increase as a result of infection by P. gaeumannii. The disease had less effect on cooler sites, especially those with low spring minimum temperatures (P < 0.001). Negligible growth decline occurred on sites with daily minimum October temperatures averaging <3.2°C.

Quantifying the value proposition for white clover persistence on a New Zealand summer-dry hill-country farm

2020 ◽  
Vol 82 ◽  
pp. 199-209
Author(s):  
Mike B. Dodd ◽  
Katherine N. Tozer ◽  
Iris Vogeler ◽  
Rose Greenfield ◽  
David R. Stevens ◽  
...  
Keyword(s):  
White Clover ◽  
Net Present Value ◽  
Moisture Stress ◽  
Simulation Modelling ◽  
Low Fertility ◽  
System Modelling ◽  
Value Proposition ◽  
Hill Country ◽  
The North ◽  
Farm System

The improvement in forage quality and quantity of summer-dry hill country pasture resulting from the introduction of clover is well recognised. However, ensuring the persistence of the commonly availablecultivars is challenging, in the face of seasonal moisture stress, intensive grazing, competition from established well-adapted pasture species, low soil fertility and low soil pH – conditions typical of the East Coast of the North Island. Here we quantify the value proposition associated with the introduction of white clover into a case study on a Gisborne sheep and beef farm, using a six-step process. A topographically explicit approach is taken, using an understanding of the underlying spatial variability, based on a combination of soil and pasture measurements, APSIM simulation modelling of pasture growth and farm system modelling of enterprise performance. We show that from a baseline of a typical low-fertility, diverse species hill country pasture, white clover introduction can increase spring and summer forage consumption by 17%, enabling inclusion of an additional 6-month bull finishing enterprise generating a 32% greater carcass weight production and leading to a 49% improvement in farm system EBIT. This represents a positive net present value of over $360,000 for the original investment in white clover establishment into existing pastures.

A GIS-BASED DECISION SUPPORT SYSTEM FOR FOREST MANAGEMENT PLANS IN TURKEY

2010 ◽  
Vol 9 (7) ◽  
pp. 929-937 ◽  
Author(s):  
Fatih Sivrikaya ◽  
Emin Zeki Baskent ◽  
Ugur Sevik ◽  
Caner Akgul ◽  
Ali Ihsan Kadiogullari ◽  
...  
Keyword(s):  
Decision Support ◽  
Forest Management ◽  
Decision Support System ◽  
Support System ◽  
Management Plans

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.

Forest fuel management for wildfire prevention in Spain: a quantitative SWOT analysis

2014 ◽  
Vol 23 (3) ◽  
pp. 373 ◽  
Author(s):  
Eva Marino ◽  
Carmen Hernando ◽  
Rosa Planelles ◽  
Javier Madrigal ◽  
Mercedes Guijarro ◽  
...  
Keyword(s):  
Forest Management ◽  
Prescribed Burning ◽  
Swot Analysis ◽  
Sustainable Forest Management ◽  
Fire Suppression ◽  
Fuel Management ◽  
Mediterranean Countries ◽  
Forest Fuel ◽  
Management Plans ◽  
Additional Funding

Spain is one of the Mediterranean countries most severely affected by wildfires during the last 30 years, despite enhanced fire suppression efforts. At present, forest area is increasing more in Spain than in any other European country, and also has one of the highest densities of fire ignitions. However, forest management plans have been developed for only 13% of Spanish forest areas. The objective of the present study was to assess the role of forest fuel management for wildfire prevention in Spain. Different fuel management techniques, including mechanical treatments, prescribed burning and controlled grazing, were considered. A quantitative SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis was performed, based on a thorough documentation review and on the opinions of forest fire experts. Results enabled the identification of obstacles that hinder the implementation of effective fuel management, and suggested strategic recommendations to overcome them. New opportunities related to rural development activities (e.g. promotion of ‘FIRESMART’ products) would be highly relevant in fire-prone forest areas. These opportunities should provide additional funding for sustainable forest management and could foster fuel management activities that would directly involve and benefit rural populations.

scholarly journals A floristic description of the Afromontane fynbos communities on Platberg, Eastern Free State, South Africa

Koedoe ◽  
2008 ◽  
Vol 50 (1) ◽  
Author(s):  
Robert F. Brand ◽  
Pieter J. Du Preez ◽  
Leslie R. Brown
Keyword(s):  
Natural Resources ◽  
Plant Communities ◽  
Conservation Management ◽  
Alien Invasive Species ◽  
Ecological Processes ◽  
The North ◽  
Shrub Community ◽  
Management Plans ◽  
Twinspan Classification

Within the Platberg area and the wider Drakensberg region, the shrinking natural resources and the threat posed to biodiversity are of concern to conservation management and require an understanding of long-term ecological processes. The vegetation of Platberg was investigated as part of an ecological survey to establish Afromontane floristic links to the Drakensberg as well as for the management of natural resources. From a TWINSPAN classification, refined by the Braun-Blanquet method, four main plant communities were identified, which were subdivided into fynbos, wetland, a woody/shrub community and grassland. A classification and description of the fynbos are presented in this article.The analysis showed the fynbos divided into two communities comprising four sub-communities and seven variants. The fynbos community had an average of 28.34 species per relevé, ranging from 14 to 54 species per sample plot. Twenty-four endemic or near-endemic Drakensberg Alpine Centre (DAC) species and 22 exotic (alien-invasive) species were recorded. Numerous floristic links with the DAC, Cape flora fynbos and grassland bioregions to the north and west were also found. The description of the fynbos plant communities can serve as a basis for the formulation of management plans for the area.

scholarly journals Anatomical characterization of wood for identification of the Tachigali Aubl. species

2021 ◽  
Vol 12 (3) ◽  
pp. 38-46
Author(s):  
João Fideles de Brito Junior ◽  
Marta Silvana Volpato Sccoti ◽  
Scheila Cristina Biazatti ◽  
Bárbara Luísa Corradi Pereira
Keyword(s):  
Forest Management ◽  
Surveillance System ◽  
National Forest ◽  
Forest Species ◽  
Axial Parenchyma ◽  
The Core ◽  
Reproductive Structures ◽  
Management Plans ◽  
Main Attribute

In the Amazon many forest species present problems of identification and obtaining botanical material with reproductive structures is not always possible. The macro and microscopic characteristics of the wood of three species of the genus Tachigali Aubl were analyzed in order to determine basic differences among the species. The collection of material was carried at the Forest Management Unit III, in the Flona do Jamari (Jamari National Forest), where we selected arboreal individuals from the species Tachigali poeppigiana Tul., Tachigali setifera (Ducke) Zarucchi & Herend and Tachigali subvelutina (Benth.) Oliveira-Filho, commonly known in Brazil as Tachi Preto (Black Tachi), Tachi Vermelho (Red Tachi) and Tachi Amarelo (Yellow Tachi), respectively, in which the coloring of the core is the main attribute for assigning their vernacular name. Heartwood samples were collected for the making of the specimens. The axial parenchyma was vasicentric and unilateral for T. poeppigiana and T. setifera, and unilateral and sparse for T. subvelutina. Pores were classified as medium and large for T. setifera and T. poeppigiana and very uncommon for T. subvelutina; however, they are medium and very uncommon for the three species. All species showed uniseriate, non-stratified and homogeneous rays. We concluded there are anatomical characteristics that allow the differentiation of the species from the genus Tachigali, which may be used to assist in forest management plans, as well as the surveillance system.

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