Modelling Pinus pinea forest management to attain natural regeneration under present and future climatic scenarios

2014 ◽  
Vol 44 (3) ◽  
pp. 250-262 ◽  
Author(s):  
Rubén Manso ◽  
Timo Pukkala ◽  
Marta Pardos ◽  
Jari Miina ◽  
Rafael Calama
Keyword(s):  
Forest Management ◽  
Seed Production ◽  
Natural Regeneration ◽  
Sustainable Forest Management ◽  
Seedling Survival ◽  
Pinus Pinea ◽  
Regeneration Failure ◽  
Climatic Scenarios ◽  
Rotation Age

Natural regeneration-based silviculture has been increasingly regarded as a reliable option in sustainable forest management. However, successful natural regeneration is not always easy to achieve. Recently, new concerns have arisen because of changing future climate. To date, regeneration models have proved helpful in decision-making concerning natural regeneration. The implementation of such models into optimization routines is a promising approach in providing forest managers with accurate tools for forest planning. In the present study, we present a stochastic multistage regeneration model for Pinus pinea L. managed woodlands in Central Spain, where regeneration has been historically unsuccessful. The model is able to quantify recruitment under different silviculture alternatives and varying climatic scenarios, with further application to optimize management scheduling. The regeneration process in the species showed high between-year variation, with all subprocesses (seed production, dispersal, germination, predation, and seedling survival) having the potential to become bottlenecks. However, model simulations demonstrate that current intensive management is responsible for regeneration failure in the long term. Specifically, stand densities at rotation age are too low to guarantee adequate dispersal, the optimal density of seed-producing trees being around 150 stems·ha−1. In addition, rotation length needs to be extended up to 120 years to benefit from the higher seed production of older trees. Stochastic optimization confirms these results. Regeneration does not appear to worsen under climate change conditions; the species exhibiting resilience worthy of broader consideration in Mediterranean silviculture.

The Forest Ecosystem Research Network of Sites (FERNS)

1999 ◽  
Vol 75 (3) ◽  
pp. 481-482 ◽  
Author(s):  
A. K. Mitchell ◽  
C. Lee
Keyword(s):  
Forest Management ◽  
Forest Ecosystem ◽  
Information Exchange ◽  
Management Practices ◽  
Sustainable Forest Management ◽  
Ecosystem Processes ◽  
Research Network ◽  
Ecosystem Research ◽  
Research Investments

The Canadian Forest Service (CFS) has organized a National Forest Ecosystem Research Network of Sites (FERNS). These sites are focussed on the study of sustainable forest management practices and ecosystem processes at the stand level. Network objectives are to promote this research nationally and internationally, provide linkages among sites, preserve the long-term research investments already made on these sites and provide a forum for information exchange and data sharing. The 17 individual sites are representative of six ecozones across Canada and address the common issue of silvicultural solutions to problems of sustainable forest management. While the CFS coordinates and promotes FERNS, the network consists of local autonomous partners nationwide who benefit from the FERNS affiliation through increased publicity for their sites. Key words: long-term, silviculture, network, interdisciplinary, ecozone, ecosystem processes

scholarly journals Global forestry: international and national strategic directions for sustainable spatial development

2021 ◽  
pp. 42-51
Author(s):  
Ye. Mishenin ◽  
I. Yarova ◽  
H. Mishenina ◽  
O. Dutchenko
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Forest Policy ◽  
Ecosystem Approach ◽  
Spatial Development ◽  
International Regulation ◽  
Environmental Requirements ◽  
Main Components

The article outlines the main strategic guidelines for sustainable spatial development of forest management at different hierarchical levels of forest management (global, national, regional and local), which are related to the formation of a sustainable forest management system on an ecosystem basis in accordance with international principles and agreements on sustainable forest development. Emphasis is placed on the formation of the system of international ecological management of forestry for the implementation of the ecosystem approach in the system of spatial forest management. The necessity of forming a fundamentally new state ecologically oriented forest policy of Ukraine, based on the reassessment of human views on the role of forests in the global environment, was stated. The basic requirements for ecologically oriented national forest policy in the field of rational use and reproduction and protection of forest resources are formed. The main ways of solving environmental problems in the system of sustainable forestry are also outlined. The main directions of long-term development of global forestry are determined. The main directions of long-term development of global forestry are determined. The main components of international regulation of relations between states in the field of compliance with environmental requirements in the field of forestry have been formed.

scholarly journals Use of forest products by the local people of the Salonga National Park in the Congo

2009 ◽  
Vol 57 (1) ◽  
pp. 51-60
Author(s):  
Jose Mbenga Ibesoa
Keyword(s):  
Forest Management ◽  
National Park ◽  
Positive Attitude ◽  
Sustainable Forest Management ◽  
Forest Products ◽  
Local Communities ◽  
Forest Resources ◽  
Rural Populations ◽  
Local Populations

This article attempted to define a compromise making it possible the satisfaction of the material needs of the populations living within the National park of Salonga while ensuring the conservation of long-term forest resources. The management of the forests requires deepened knowledge of the resources and the participation of the local communities, which are the better, informed on of the forest resources. The implementing of a policy on sustainable forest management would be possible by a better integration and participation of the local populations. A survey was carried out in four villages of the National park of Salonga. The results of the investigation show clearly a positive attitude of the rural populations with regard to the forest resources. The diversity of the needs for the population corresponds to the choice of the products and services of the forest. Overall, the potential of the park’s forests is superior in comparison with the needs of the population. The exploitation of the forest products is vast and is included in the category of a system of an economy of collection.

Current capacity to conduct ecologically sustainable forest management in northeastern Canada reveals challenges for conservation of biodiversity

2015 ◽  
Vol 45 (5) ◽  
pp. 567-578 ◽  
Author(s):  
Louis Imbeau ◽  
Martin-Hugues St-Laurent ◽  
Lothar Marzell ◽  
Vincent Brodeur
Keyword(s):  
Forest Management ◽  
Boreal Forest ◽  
Sustainable Forest Management ◽  
Anthropogenic Disturbances ◽  
Dense Forest ◽  
Coarse Filter ◽  
Fine Filter ◽  
Ecologically Sustainable ◽  
Forest Habitats

Long-term exploitation of boreal ecosystems often results in a reduced range of ecological conditions that threatens several species. In most boreal jurisdictions, the northern extent of commercial forestry corresponds to economical rather than ecological considerations. Our general objective is to offer guidance for sustainable boreal forest management by using a biodiversity criterion based on three indicators. The first two indicators are part of a coarse filter referring to the proportion and fragmentation of tall, dense forest habitats, whereas a third one uses a fine filter for specific requirements of boreal caribou. We applied the methodology with and without anthropogenic disturbances on 1114 land districts to contrast the preindustrial potential and current capacity of Quebec’s boreal forest to support forest management. Originally, 826 districts (74%) were above the 20% cutoff value for the minimum proportion of tall, dense forest habitats. Among the 567 districts currently under forest management, 45 did not reach this value because of past anthropogenic disturbances. Originally, 88% of the districts had sufficient undisturbed habitats to maintain caribou populations, but anthropogenic disturbances reduced this proportion to 51%. The proposed methodology could contribute to delineating areas where sustainable forest management can be implemented. Our results also clearly show that management targets of the last decades were insufficient to prevent loss of habitats below strict minimum ecological thresholds. Our approach offers a general framework that could be adapted to other forested regions to attain similar biodiversity conservation objectives.

scholarly journals Economic effectiveness of sustainable forest management

2012 ◽  
Vol 52 (No. 9) ◽  
pp. 427-437
Author(s):  
K. Pulkrab
Keyword(s):  
Forest Management ◽  
Natural Regeneration ◽  
Sustainable Forest Management ◽  
Economic Aspects ◽  
Forest Types ◽  
Wood Production ◽  
Management Intensity ◽  
Target Management ◽  
Production Conditions ◽  
Species Proportion

The article deals with economic aspects of sustainable forest management. The analysis stems from Plíva’s typological system. Several hundreds of variants were calculated for forest silviculture profitability classified according to management intensity, target management system, proportion of ameliorating and improving species, proportion of natural regeneration, and set of forest types. The results show a possibility of labour saving and also marked differentiation of the effect of wood production function depending on natural and production conditions and management intensity.

scholarly journals Sustainable Forest Management in Radiata Pine Plantations: A Case Study in Sardinia (Italy)

2020 ◽  
Vol 3 (1) ◽  
pp. 51
Author(s):  
Giuseppe Pignatti ◽  
Gianni Facciotto ◽  
Giampiero Incollu ◽  
Sara Maltoni ◽  
Mauro Marongiu ◽  
...  
Keyword(s):  
Forest Management ◽  
Natural Regeneration ◽  
Forest Cover ◽  
Sustainable Forest Management ◽  
Management Strategies ◽  
Radiata Pine ◽  
Economic Aspects ◽  
Continuous Forest ◽  
Different Types

The study deals with the sustainability of management in radiata pine (Pinus radiata D. Don.) plantations of an area of Sardinia (Italy). Focusing on management strategies that foster a continuous forest cover and processes of natural regeneration, the aim was to evaluate the benefits arising from different types of plantation management, balancing social, cultural, environmental and economic aspects. Systematic and selective thinning, as well as regeneration cutting, were carried out in test areas of 45-year-old plantations, and outcomes were compared by considering current forest dynamism, natural regeneration and technical and economic aspects. From an economic perspective, silvicultural management strategies were always positive, with differences depending on the type of intervention. The regeneration cutting, with the expected natural regeneration of radiata pine in the following years, ensures the best economic outcomes, allows for a continuous forest cover and favors the replacement of even-aged plantations, boosting biodiversity in forest stands (structure, species). Climate change, increasing pests and wildfires represent the biggest threats to the sustainability of plantations in Mediterranean areas, and sensitivity is higher in even-aged, homogeneous, monospecific tree stands. In the context of the study, turning forest plantations into more resilient and stable ecosystems can be effectively achieved by means of continuous-cover forest management strategies.

Building extension into S&T: Is this the missing link?

2002 ◽  
Vol 78 (1) ◽  
pp. 128-132 ◽  
Author(s):  
Christine Hollstedt
Keyword(s):  
Sustainable Development ◽  
Forest Management ◽  
Information Management ◽  
Sustainable Forest Management ◽  
Science And Technology ◽  
Forest Policy ◽  
Knowledge Based ◽  
Forestry Extension ◽  
Forest Science

Extension is a multi-faceted learning discipline. It is a process that works with people and the best available science and information to achieve a desired change. While science and technology provide information and tools to support sustainable development, it is the extension of this knowledge to those who must make decisions that enables innovation and sustainable forest management. There are many attempts at improving the links between the forest science and technology community, and the forest policy and management communities. It is time to make a long-term investment in forestry extension infrastructure to enable a science and knowledge-based innovative sector. Key words: extension, sustainable forest management, science and technology, information management, knowledge management

scholarly journals Modeling paludification and fire impacts on the forest productivity of a managed landscape using valuable indicators: the example of the Clay Belt

2021 ◽  
Author(s):  
Alexis Schab ◽  
Sylvie Gauthier ◽  
Jesus Pascual Puigdevall ◽  
Osvaldo Valeria ◽  
Yves Bergeron ◽  
...  
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Forest Productivity ◽  
Forest Harvesting ◽  
Dynamics Model ◽  
Negative Effects ◽  
Management Planning ◽  
Regeneration Failure ◽  
Closed Forest ◽  
The Cost

In areas sensitive to forest management, paludification and successive disturbances in boreal forest can affect forest regeneration negatively, sometimes resulting in stand opening. As these negative effects on forest productivity are not fully considered in strategic management planning, a new landscape dynamics model integrating fire, paludification, forest harvesting, and regeneration failure was used to assess these impacts in a large forest management unit (10,828 km2) of northwestern Québec. Two reforestation scenarios, one based on the accessibility of the areas to be treated and the other aimed at restoring all burned and paludified areas to production were compared to one with no intervention. The success of the scenarios was evaluated using the predicted volume harvested, the proportion of closed or opened stands areas, an indicator of productivity; the cost of reforestation and the royalties associated with harvesting. Harvesting the paludified areas without reforesting would lead to a sharp increase in open stands areas (+17.3%). The strategy of reforesting accessible areas is the most promising for achieving sustainable forest management targets. The monitoring of maximum potential volume (MPV) and the closed forest area as indicators of landscape productivity provides the ability to anticipate problems earlier than with the conventional forest planning indicators.

scholarly journals Ukrainian plain oak forests and their natural regeneration

2019 ◽  
Vol 71 (1) ◽  
pp. 17-29 ◽  
Author(s):  
Viktor Tkach ◽  
Maksym Rumiantsev ◽  
Oleksii Kobets ◽  
Volodymyr Luk’yanets ◽  
Sergiy Musienko
Keyword(s):  
Forest Management ◽  
Natural Regeneration ◽  
Sustainable Forest Management ◽  
Age Groups ◽  
Oak Forests ◽  
Forest Steppe ◽  
Left Bank ◽  
Natural Forests ◽  
Study Region ◽  
Seed Origin

Abstract Changes in the areas and stock volumes of oak stands were analyzed within the six administrative regions in the plain area of Ukraine, based on forest management data (subcompartment database) as of 2001 and 2016. The studied regions geographically related to the Left-bank Forest-Steppe zone of Ukraine (Kyiv, Poltava, Sumy, Kharkiv, Cherkasy and Chernihiv Regions). The analyzed area was over 284,000 hectares. The paper outlines the present state of the oak stands, concerning their origin (vegetative, natural seed and planted seed stands). Forestry-taxation indices of the stands were determined by grouping the plots according to age and further clustering in four age groups. The natural regeneration under a canopy in oak stands was accounted and estimated using circular 10 m2 (R = 178 cm) accounting plots. The oak forests were found to be dominated by stands of vegetative (coppice) origin (57%). Planted seed-origin oak stands covered 101,000 ha or 36% of the total area (284,000 ha). Stands of natural seed origin amounted to 7%. From 2001 to 2016, the total area of oak forests in the study region decreased by nearly 7,000 hectares. The analysis of literature sources allowed identifying numerous factors, which have the greatest influence on the emergence, liveability, and growth of natural regeneration of pedunculated oak. Only 20% of the investigated oak stands were found to have a sufficient amount of oak regeneration. For the implementation of sustainable forest management, activities should be aimed at optimizing the age structure of oak forests and growing natural forests from seeds.

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