Search results for "Forestry"

Impacts of wood extraction on soil: assessing rutting and soil compaction caused by skidding and forwarding by means of traditional and innovative me…

2021

AbstractIntensive forestry operations may cause soil compaction, plastic soil disturbances and rutting, which are responsible for undesirable effects on soils, vegetation and water bodies. Despite the numerous studies aimed to identify the main factors affecting soil damages, it still remains unclear whether wood extraction methods and driving direction (uphill or downhill) may affect the impacts of forest machines. This research analyses soil compaction and soil penetration resistance as well as rutting from forwarding and skidding using the same farm tractor in up- and downhill wood extraction. Rutting was estimated by 3D soil reconstruction derived by portable laser scanning (PLS) and cl…

Dry content analysis in wet pressing: Sensitivity to pressing variables

2002

A new list and prioritization of wild plants of socioeconomic interest in Italy: toward a conservation strategy

2021

Wild harvested plants (WHP) and crop wild relatives (CWR), part of the segment of natural diversity that is collectively known as ‘Plant Genetic Resources’, have great socioeconomic importance for humans because they are used either directly or in crop breeding. In order to lay down a solid base for constructing conservation strategies for Italy, an updated annotated list of CWR and WHP was produced for the country including information on known uses. Taxa included in the list were then prioritized using a pragmatic approach based on their value, native status, and need of protection or monitoring.

Soil Science Challenges in a New Era: A Transdisciplinary Overview of Relevant Topics

2020

Transdisciplinary approaches that provide holistic views are essential to properly understand soil processes and the importance of soil to society and will be crucial in the future to integrate distinct disciplines into soil studies. A myriad of challenges faces soil science at the beginning of the 2020s. The main aim of this overview is to assess past achievements and current challenges regarding soil threats such as ero-sion and soil contamination related to different United Nations sustainable development goals (SDGs) including (1) sustainable food production, (2) ensure healthy lives and reduce environmental risks (SDG3), (3) ensure water availability (SDG6), and (4) enhanced soil carbo…

Evaluation of the Effects of the Enriched-Organic Diets Composition on European Sea Bass Welfare through a Multi-Parametric Approach

2020

Three groups of European sea bass (Dicentrarchus labrax) were fed for seven months, with either a conventional diet or two different organic diets, which contain organic vegetables and a natural antioxidant compound. The two organic diets differed themselves in terms of raw proteins, fish oil, and lipid contents. Sea bass welfare condition was assessed in relation to these three diets, using 16 different indicators. These were: swimming activity (recovery test, muscle activity), haematological and serological stress indicators (haematocrit, haemoglobin, red-blood-cell count, cortisol, glucose, lactate), aspecific immunity parameter (lysozyme), indicators of exposure to organic contaminants …

Public provision versus private provision of industrial land: a hedonic approach

2005

Abstract This study examines the factors that explain the differences observed between the industrial land prices offered by the public sector and those offered by the private sector by means of estimating three hedonic pricing models. The results obtained show that location, defined as the distance to a highway, the distance to the city business district and the distance to the capital of the province, have an important impact on industrial land value. However, this impact is greater when private developers provide the land. Other variables considered, such as who is behind the provision of the industrial land, have an important impact on sale prices.

Hieracium elisaeanum Arv.-Touv. ex Willk. (Asteraceae), novedad para la flora de Andalucía Occidental (España)

2020

espanolSe da a conocer por primera vez la presencia en la provincia de Cordoba de Hieracium elisaeanum Arv.-Touv. ex Willk., novedad tambien para la flora de Andalucia Occidental. EnglishThe presence of Hieracium elisaeanum Arv.-Touv. ex Willk. in the province of Cordoba is reported for the first time, and this new record supports its inclusion in the flora of western Andalusia.

La influencia de la distancia al mar en la distribución de la flora de las dunas del Cabo de Gata

1989

Se realiza un estudio de la distribución respecto de la distancia al mar de las especies presentes en una porción de la franja arenosa del Cabo de Gata (Almería, España). La distancia al mar ha resultado ser un factor decisivo cuya influencia sobre otros factores ambientales -microrrelieve- ha sido revelada por la interpretación de la ordenación establecida por el Análisis Factorial de Correspondencias efectuado sobre los datos de los valores de cobertura de Ias especies en los inventarios de los intervalos de distancia considerados. A species distribution study in relation to the sea distance is realized in a portion of the sandy strip from "Cabo de Gata" (Almeria, Spain). The sea distance…

Web-wide imaging of paper; Analyzing the potential of on-line light transmittance measurement in quality control and diagnostics of paper

2013

Changes in climatic signals of English oak tree-ring width and cross-section area of earlywood vessels in Latvia during the period 1900–2009

2012

Abstract We investigated changes in response of wood formation in English oak (Quercus robur L.) to climatic factors since 1900. It was hypothesised that the effect of winter and spring temperatures has weakened, while summer precipitation has become limiting. Increment cores were taken from 40 sites across Latvia. Tree-ring width and cross-section area of earlywood vessels were measured and cross-dated. Regional chronologies were built by pooling time series of trees within two regions of Latvia (western and eastern region), which differed in continentality. Climatic signals differed between the proxies (tree-ring width and earlywood vessel cross-section area) and between regions. Mean cro…