Search results for "forest"

Hyaluronan for knee osteoarthritis: an updated meta-analysis of trials with low risk of bias

2015

International audience; Background The effectiveness of intra-articular hyaluronic acid (IAHA) injection for knee osteoarthritis (KOA) is debated.Objectives To evaluate the effect of IAHA for patients with KOA by analysing data from trials of IAHA versus placebo with low risk of bias, to provide the highest level of evidence.Methods A systematic review and meta-analysis was conducted. Randomised controlled trials (RCTs) with a low risk of bias (adequate randomisation and concealment and double-blind design) that investigated IAHA versus placebo (saline solution) injection were eligible. The primary efficacy measure was pain intensity and secondary outcome function at 3 months. The treatment…

Isolation and confirmation of viral nervous necrosis (VNN) disease in golden grey mullet (Liza aurata) and leaping mullet (Liza saliens) in the Irani…

2016

The present study was conducted on 428 moribund mullet fish samples to isolate and identify the causative agent of a mysterious acute mortality which recently occurred in wild mullets in Iranian waters of Caspian Sea, suspected to be due to viral nervous necrosis (VNN) disease. Disease investigation was carried out employing various diagnostic procedures such as virology, bacteriology, parasitology, haematology, histopathology, IFAT, IHC and nested RT-PCR. Brain and eye samples of affected fishes were collected in sterile conditions and then kept at -80 °C for cell culture isolation and nested RT-PCR detection of the causative agent. Other tissue samples were also collected and fixed for hi…

Processi erosivi e messa in sicurezza del territorio siciliano

2010

Sectoral policies as drivers of forest management and ecosystems services: A case study in Bavaria, Germany

2023

European countries have national sectoral polices to regulate and promote the provision of a wide range of forest ecosystems services (FES). However, potential incoherencies among these policies can negatively affect the efficient provision of FES. In this work, we evaluated the coherence among three national policies from Germany and their ability to effectively provide FES in the future: the Forest Strategy 2020 (FS), the National Strategy on Biological Diversity (BDS), and the German National Policy Strategy on Bioeconomy (BES). Using forest inventory data from the Federal State of Bavaria, we simulated a range of forest management options under three climate trajectories for 100 years i…

Urban forest soils harbour distinct and more diverse communities of bacteria and fungi compared to less disturbed forest soils.

2022

Anthropogenic changes to land use drive concomitant changes in biodiversity, including that of the soil microbiota. However, it is not clear how increasing intensity of human disturbance is reflected in the soil microbial communities. To address this issue, we used amplicon sequencing to quantify the microbiota (bacteria and fungi) in the soil of forests (n=312) experiencing four different land uses, national parks (set aside for nature conservation), managed (for forestry purposes), suburban (on the border of an urban area) and urban (fully within a town or city), which broadly represent a gradient of anthropogenic disturbance. Alpha diversity of bacteria and fungi increased with increasin…

Trade-offs among intensive forestry, ecosystem services and biodiversity in boreal forests

2018

Finnish forests are used extensively for timber production but are also providers of other ecosystem services and harbor unique biodiversity. The ecosystem services approach has so far been used marginally in the context of Finnish forestry; however, due to the multiple values associated with Finnish forests and the impacts forestry operations have on forest ecosystems, it is clearly applicable in this context. In this thesis, I studied the occurrence and severity of trade-offs among ecosystem services and biodiversity conservation in Finnish forests. I used forest inventory data, forest growth simulations, and multi-objective optimization to reveal how the severity of the trade-offs varies…

Adaptive Management as a Vehicle to Achieve Sustainability of Boreal Forests : A Historical Review from Fennoscandia to Minnesota

2021

Located solely in the northern hemisphere, boreal forests contain an estimated one-third of Earth’s forested land. The purpose of this work aimed at reviewing the evolution of approaches in land planning and management of boreal forests in Finland and Northern Sweden, while comparing these to those developed in Minnesota. The nature of this work is historical research of forests use and management during the last 200 years. The knowledge from past histories is valuable to improve management approaches that aim at retaining the economic viability of logging, without jeopardizing the regenerative capabilities of forest ecosystems. Various methods and restoration efforts aimed at recovering fr…

Suomalaisia metsäsuhteita

2018

Climate targets in European timber-producing countries conflict with goals on forest ecosystem services and biodiversity

2023

The role of increased timber harvests in reaching climate mitigation targets for European countries will be limited if the protection of forest ecosystem services and biodiversity is to be achieved, suggests an empirical forest model driven by future scenarios to limit warming to 1.5 degrees C in 2100.The European Union (EU) set clear climate change mitigation targets to reach climate neutrality, accounting for forests and their woody biomass resources. We investigated the consequences of increased harvest demands resulting from EU climate targets. We analysed the impacts on national policy objectives for forest ecosystem services and biodiversity through empirical forest simulation and mul…

Increasing Role of Services : Trends, Drivers and Search for New Perspectives

2019

Increasing role of services is often described as tertiarization of the economy, that is, the increased share of the services sector employment and value added. In business and engineering sciences the same phenomena are investigated at the level of company operations, value networks as well as system innovations and system-level transitions. What was described as a service economy in fifty or twenty years ago, are not the same ideas of a service economy that are investigated today. This chapter provides a broad overview on the increasing role of services: how this phenomenon has been addressed in different fields, including the forestbased sector research. Taking the observation from the r…