Combining a growth-simulation model with acoustic-wood tomography as a decision-support tool for adaptive management and conservation of forest ecosystems

Changes in the Secondary Landscape Structure in Hruby Jesenik Mountains (Czech Republic)

This study deals with the analysis of changes in the secondary landscape structure of the territory of the Jeseniky Mountains (Czech Republic) monitored in the years 1946, 1953, 1962, 2000, and 2016. The study analysed georeferencing aerial geodetic images in the QGIS 2.18 program. On the basis of the land use classification key that was created, historical changes were identified in the following categories of land use; forest, arable land, orchards, water surfaces, wild life refuges and scattered greenery, river networks, permanent grass stands, meadows and pastures, gardens and built-up areas, courtyards and hard surfaces. The surface areas of land use categories were utilized for the calculation of change indicators regarding the structure of the landscape (landscape similarity index, coefficient of ecological stability, and change index). The maps for land use created for individual historical periods functioned as the starting point for a comprehensive assessment of the landscape by means of a SWOT analysis, which created the basis for a proposal for permanently sustainable utilization of the landscape in the area that was monitored. The study results indicate that the analysis of the historical development of the secondary landscape structure may be utilized as a decision support tool when planning sustainable landscape management.

Alluvial Artisanal and Small-Scale Mining in A River Stream—Rutsiro Case Study (Rwanda)

Artisanal and small-scale mining is a significant economic sector in Rwanda. Mining activities often use a watercourse, in which secondary extraction takes place and minerals are washed. Mining thus greatly affects the geomorphological conditions in the area. The aim of this paper is a digest of environmental impacts of alluvial artisanal and small-scale mining with a focus on anthropogenic influences on topography with regard to the methods used in raw material mining. The author draws on a case study from the mining site of Rutsiro district in Rwanda. Main findings of alluvial artisanal mining in a riverscape are changes in landscape structure, deforestation, intensification of geomorphological processes, new relief shapes (suffosion depressions, check dams, gravel benches, anthropogenic channels) and hydrological river regime, chemical pollution of soil and watercourses. Artisanal and small-scale mining may lead to a significant change and acceleration of fluvial processes. This paper covers a broad understanding of environmental impacts of alluvial artisanal and small-scale mining with a focus on anthropogenic influencing.

Monetary Assessment of Restored Habitats as a Support Tool for Sustainable Landscape Management in Lowland Cultural Landscapes

Surfaces directly influenced by mining and post-mining have risen to prominence in the field of restoration ecology. It is important to gain a better understanding of sustainable landscape management in lowland European cultural landscapes. Sand and gravel-pit areas were selected as study sites, where mining activities have been the main factor in land use over recent decades. The post-mining restoration of each area disturbed by mining processes was planned according to legally enforced technical and biological restoration protocols, as well as a specific document entitled the Biological Action Plan (BAP). The financial costs of BAPs for individual study sites were compared with the monetary value of habitats over three time periods. The economic evaluation was based on the assessment method of ecological harm to habitats carried out in Hesse (Germany). The results show that the restoration of target habitats after mining will establish and gradually develop new natural habitats with a higher monetary value than before mining, which become refuges of biodiversity in cultural landscapes. The results also indicate that the ecological restoration of post-mining areas can result in a higher monetary value of the restored natural habitats in comparison to the original habitats which were destroyed by mining.

Willingness to Pay for Forest Existence Value and Sustainability

Uganda is richly endowed with flora and fauna. Until the early 2000s, most of the types of vegetation have remained natural/virgin forests and shrubs until recent years, when human activities have damaged them. Understanding the different ways that people value such endangered forest resources is very important. The main hypothesis in our study is that willingness to pay (WTP) for forest existence value and sustainability depends on the preference for the same values. In addition, we examined socioeconomic characteristics, such as sex, education, and household incomes, which could influence the WTP for forest existence value and sustainability. We carried out field questionnaire interviews with the aim of ascertaining Willingness to Pay (WTP) for forest existence. The WTP values were in a range between 1 and 200 USD based on the contingent valuation method (CVM). A sample with a size of 203 was interviewed in selected towns and villages in Uganda, and the data collected were subjected to statistical analysis. The cross-tabulation of the expressed preferences illustrates that 81.9% of the representative sample are willing to pay for forest existence value and sustainability. We concluded that the willingness to pay for forest existence significantly depends on the preference for forest existence values and sustainability. Our results equally express that the mean WTP in this region is 15 USD per year and that over 60% are willing to pay this amount. The socioeconomic determinants’ results demonstrate heterogeneity and that over 90% of the respondents are willing to pay for forest existence, conservation, and sustainability.

Drivers of the Distribution of Ecological Species Groups in Temperate Deciduous Managed Forests in the Western Carpathian Mountains

Managed broadleaf deciduous forests are an important type of forest vegetation in Central Europe, also in the Western Carpathians. These forests are both economically and environmentally valuable. However, little is known about ecological species groups and the inter-specific associations of dominant species in temperate deciduous managed forests in Central Europe. Since the forest stands are in a managed landscape, they are not consistent with the traditionally recognized and used vegetation associations in the Western Carpathians. For these reasons our research contributes to understanding the consequences of broadleaf deciduous forest management. The aim of this research was the determination of ecological species groups and an investigation into the main environmental drivers, in order to explain the distribution of ecological species groups. The numerical TWINSPAN classification was selected to distribute 146 relevés to the five ecological species groups. Of these, 77 relevés were divided into two groups with Fagus sylvatica dominant, while 63 relevés were Quercus petraea dominant. Carpinus betulus, Tilia cordata and Fraxinus excelsior were dominant in 19 relevés. Constrained Analysis of Principal Components was used to explain the vegetation–environment relationship on three transects in the Male Karpaty Mountains. Altitude, pH, Ca, C, K and Mg were selected as the significant environmental drivers responsible for a large part of the species group variability (31.8%). The main requirement for sustainable forest management is knowledge of the vegetation–environment relationship and this research was focused on gaining such understanding. This knowledge can be used as a decision support tool for sustainable management in managed deciduous forests.

The Role of Anthropogenic Landforms in Sustainable Landscape Management

Anthropogenic landforms are attractive landscape structures. They are linked to the cultural elements of the landscape and they also support biodiversity on the landscape level. Concerning their position within heritage concepts, anthropogenic landforms can be seen as a bridge between natural and cultural heritages. This paper is focused on the relevance of anthropogenic landforms to landscape management and planning. The study is based on the concept of geomorphosites, which can be applied within sustainable management and the conservation of geomorphological heritage. The case study was applied in the urban area of Brno (Czech Republic). The results of the study indicated the importance of anthropogenic landforms for urban landscape conservation and sustainable tourism development. The assessment of landforms in the study area enabled to establish a set of recommendations for the sustainable management of anthropogenic landforms in Brno. This study suggested the assessment of anthropogenic landforms as a support tool for sustainable landscape management in urban areas.

What is the Development Capacity for Provision of Ecosystem Services in the Czech Republic?

The aim of our study is to identify the evolution of land use and the landscape capacity to provide selected ecosystem services (ESs) over the past 28 years. The results obtained should answer whether the recorded land cover development has manifested in the same way as the development of landscape capacity to provide ESs for four different services. Corine Land Cover (CLC) data are used to describe the land cover for five time periods (1990, 2000, 2006, 2012, and 2018) for the area of interest—the whole of the Czech Republic Identification of persistence area. The main trajectories of land cover developments are calculated using overlay spatial operations in GIS. For each analyzed year of landscape development, land cover is evaluated separately, and basic quantification indicators are calculated. At the same time, the filling capacity of selected ESs is evaluated. The results show that the assessed area had the highest capacity to provide ecological integrity in 1990–2006, and then this slightly decreased due to category changes. From a spatial point of view, the worst development trend is seen for provisioning services, where negative development is represented almost all over the country. Ecological integrity and regulating services have similar spatial characteristics of development.

Recent Consequences of Climate Change Have Affected Tree Growth in Distinct Nothofagus Macrocarpa (DC.) FM Vaz & Rodr Age Classes in Central Chile

Forests play an important role in water and carbon cycles in semiarid regions such as the Mediterranean ecosystems. Previous research in the Chilean Mediterranean forests revealed a break point in 1980 in regional tree-ring chronologies linked to climate change. However, it is still unclear which populations and age classes are more affected by recent increases in drought conditions. In this study, we investigated the influence of recent variations in precipitation, temperature, and CO2 concentrations on tree growth of various populations and age classes of Nothofagus macrocarpa trees in Central Chile. We sampled 10 populations from five sites of N. macrocarpa through its whole geographic distribution in both Coastal and Andes ranges. We used standard dendrochronological methods to (i) group populations using principal component analysis, (ii) separate age classes (young, mature, and old trees), (iii) evaluate linear growth trends based on the basal area increment (BAI), and (iv) analyze the link between BAI and atmospheric changes using linear mixed-effects models. Results showed that young trees are more sensitive to climate variability. Regarding population grouping, we observed that all population clusters were sensitive to winter-spring precipitation, but only the Andes and Coastal populations were negatively correlated with temperature. The results of CO2 fertilization analyses were controversial and unclear. Since young trees from all population clusters reacted positively in the phase with an increase of atmospheric CO2 between 1980 and 2014, this behavior was not translated into growth for the last 15 years (2000–2014). However, it should be noted that the young trees of the highest elevation populations did not have a negative growth trend, so it seems that CO2 counteracted the negative effect of recent regional climate change (increase in temperature and precipitation decrease) in these population trees. Further studies are needed to assess the effects of climate variability over other ecological and physiological processes.

Analysis of Socioeconomic Impacts of the FSC and PEFC Certification Systems on Business Entities and Consumers

The article discusses the issues of effectiveness of the FSC (Forest Stewardship Council) and PEFC (Programme for the Endorsement of Forest Certification) certification systems in relation to enterprises and the level to which the systems which present sustainability as a part of their ethos are accepted by consumers. The justifiability and topicality of this issue result from the increasingly strong interest in sustainability of the society as a whole as well as from the long-term vision of sector policies with respect to meeting the objectives of sustainable development. The increasing demand for natural resources exerts pressure on our planet. Sustainability is hence essential for our future and has long been in the centre of the European project. Its economic, social and environmental aspects which form the common objective of society have been acknowledged in EU agreements. A principal document of a global nature is the 2030 UN Agenda for Development, a sustainability programme which has the sustainability of forest ecosystems established in its Goal 15: Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss. Visions, direction and goals of sustainable development have also been stipulated in the Paris Agreement on climate change (COP21), in the Addis Ababa action programme and in The Future We Want declaration, namely in its Chapter II, which appeals to enterprises and industries for developing strategies which would contribute to sustainable development. This study aims to analyse and assess the justifiability of the existence of certification systems in relation to processing operators and end consumers in the Czech Republic. From the results of the study, it can be concluded that, despite the strong representation of selected certification systems in the Czech Republic, their effectiveness in economic, social and environmental terms is not perceived exclusively positive by businesses and consumers.

Thorny Shrubs Limit the Browsing Pressure of Large Herbivores on Tree Regeneration in Temperate Lowland Forested Landscapes

Thorny shrubs are considered as an important driver in the natural development of temperate forest structures, particularly in European lowland forests. We assessed the current role of thorny shrubs in the regeneration of deciduous tree species under heavy browsing pressure in a central European temperate forested landscape. The study’s military training area offered a unique opportunity to investigate the processes in which deciduous tree seedlings grew under thorny shrubs and in the close vicinity of thorny shrubs in a landscape with a high density of large herbivores (red deer and sika deer). We assessed the number of seedlings, species composition, seedling height, and degree of browsing damage, and their relationship to study plots elevation, thorny shrub species, coverage, and height. The regenerated tree seedlings were mostly detected as common ash (Fraxinus excelsior) and wild cherry (Cerasus avium). The species of thorny shrubs were blackthorn (Prunus spinosa), hawthorn (Crataegus sp.), and wild rose (Rosa sp.). We found that the thorny shrubs protected the tree seedlings from browsers to a large extent. However, the effects of thorny shrubs on the tree seedlings' characteristics varied among the shrub species. While results revealed significant effects of hawthorn and wild rose on the tree seedlings' abundance and survival, blackthorn’s negative effect of shading the tree seedlings outweighed its protective role. These results indicated a possible mechanism that enabled the regeneration of deciduous tree species under large herbivore pressure. These results can be applied in the landscape planning and forest management of deciduous tree regeneration and forest restoration in temperate forested lowland landscapes, where high densities of large herbivores (without the presence of large predators) usually occur.

Bird Diversity as a Support Decision Tool for Sustainable Management in Temperate Forested Floodplain Landscapes

Sustainably managed forests provide multiple ecosystem services in cultural landscapes, including maintaining biodiversity. Better understanding of the benefits regarding the biodiversity of different silvicultural practices is important for sustainable landscape management. Conservation targets in forested landscapes should be determined by land managers and policy-makers, based on serious ecological research. This study deals with response of bird diversity to three different habitat types of temperate hardwood floodplain forests, which reflect specific forms of forest management. Research was based on long-term field bird census in the years 1998 to 2002 applying the point count method. Data was analysed using regression analysis with dummy variables. The results of the study indicate that hardwood floodplain forest heterogeneity, supported by different types of forest management (old-growth forest protection, group-selection harvesting and forest edge protection), provides large-scale habitat mosaic conditions suitable for many breeding bird species with different ecological niches. This result suggests that comparison of bird diversity response to different forest management types can be used as a decision support tool for sustainable landscape management strategy and local management practices in forested cultural lowland landscapes. Improvements in both regional and local ecological knowledge are generally needed in order to control floodplain land use decisions, which are typically made on the scale of landscape management.