Search results for "forest"

Classification of varieties for their timing of flowering and veraison using a modelling approach: A case study for the grapevine species Vitis vinif…

2013

16 pages; International audience; tUnderstanding differences in phenology for varieties of a given species is important for making informeddecisions on variety choice in the context of climate change and breeding new cultivars. Phenologicalmodels that incorporate temperature as a key environmental factor can be used to describe the differencesin phenological timing between cultivars. This paper outlines a methodology, based on a phenologicalmodel, for classifying the timing of flowering and veraison for a substantial number of varieties of thegrapevine (Vitis vinifera L.). 95 varieties were characterized for flowering and 104 varieties for veraison.Various statistical measures were used to …

The perception of abandoned farmland by local people and experts: Landscape value and perspectives on future land use

2013

Abstract Abandonment of agricultural land is a common feature of areas undergoing a range of urbanisation and marginalisation processes across Europe and beyond. This is also the case in Latvia, particularly in the period since 1990, when after regaining independence from the Soviet Union land was restored to its previous owners or their descendants. Many of these people have moved to cities and lack the interest in or the necessary capital for starting farming enterprises. As a result, large areas of land were abandoned, leading to spontaneous afforestation and with associated changes in landscape structure, ecological function and aesthetic value. While there has been an increase in resea…

THE ROLE OF MEDITERRANEAN FRUIT TREE ORCHARDS AND VINEYARDS IN MAINTAINING THE TRADITIONAL AGRICULTURAL LANDSCAPE

2012

The Mediterranean area represents one of the most suitable and diversified environments for horticultural crops, being this propriety well expressed in the commonly accepted definition of “Mediterranean cultivated garden”. In Italy, fruit crops have been in the past introduced and expanded in different environments depending on the species and adaptability to the physiographic characteristics of the regions. The climate and the diversity of environmental contexts, the specificity of soils, the plasticity of the cultivated genotypes, have allowed a tight and typical relationship among land and farmers. Since the past centuries olive and fruit orchards, vineyards and Citrus plantations have r…

Analysis of Chemical and Biochemical Parameters of Petrol-Contaminated Soil after Biostimulation with an Enzyme Reagent

2020

This study aimed to assess the effect of petrol and the Fyre Zyme reagent on selected chemical and biochemical properties of loamy sand. The experiment was conducted under laboratory conditions. First, petrol was introduced into the soil at doses of 0 and 50 g k-1dry matter (DM). Next, 6% Fyre-Zyme enzyme reagent solution was added to the samples contaminated and uncontaminated with petrol, in the following combinations: 0 (control), once at 40 cm3 kg&ndash

G124 e ZEN2

2023

Lavorare nelle periferie, oltre a rispondere alle esigenze molto concrete che queste parti urbane manifestano, sembra essere il modo più approfondito per conoscere la realtà di oggi. Cioè scegliere la periferia coincide con la volontà di indagare quella parte urbana che ha maggiori potenzialità e quindi più gradi di sperimentazione. L’argomento trattato include il grande tema della forestazione urbana, sapendo però cogliere una differente applicazione riguardo alle peculiarità degli spazi urbani. Bisogna sapere distinguere l’eventuale trasformazione di una generica strada in viale alberato, in una parte della città consolidata, da interventi molto più consistenti in prossimità dei margini u…

Gametic embryogenesis in Mediterranean fruit crops

2011

Morphology and genetics reveal an intriguing pattern of differentiation at a very small geographic scale in a bird species, the forest thrush Turdus …

2014

12 pages; International audience; Mobile organisms are expected to show population differentiation only over fairly large geographical distances. However, there is growing evidence of discrepancy between dispersal potential and realized gene flow. Here we report an intriguing pattern of differentiation at a very small spatial scale in the forest thrush (Turdus lherminieri), a bird species endemic to the Lesser Antilles. Analysis of 331 individuals from 17 sampling sites distributed over three islands revealed a clear morphological and genetic differentiation between these islands isolated by 40-50 km. More surprisingly, we found that the phenotypic divergence between the two geographic zone…

An efficient data model for energy prediction using wireless sensors

2019

International audience; Energy prediction is in high importance for smart homes and smart cities, since it helps reduce power consumption and provides better energy and cost savings. Many algorithms have been used for predicting energy consumption using data collected from Internet of Things (IoT) devices and wireless sensors. In this paper, we propose a system based on Multilayer Perceptron (MLP) to predict energy consumption of a building using collected information (e.g., light energy, day of the week, humidity, temperature, etc.) from a Wireless Sensor Network (WSN). We compare our system against four other classification algorithms, namely: Linear Regression (LR), Support Vector Machin…

2020

Piping erosion is one form of water erosion that leads to significant changes in the landscape and environmental degradation. In the present study, we evaluated piping erosion modeling in the Zarandieh watershed of Markazi province in Iran based on random forest (RF), support vector machine (SVM), and Bayesian generalized linear models (Bayesian GLM) machine learning algorithms. For this goal, due to the importance of various geo-environmental and soil properties in the evolution and creation of piping erosion, 18 variables were considered for modeling the piping erosion susceptibility in the Zarandieh watershed. A total of 152 points of piping erosion were recognized in the study area that…

Simplified Model to Predict Runoff Generation Time for Well-Drained and Vegetated Soils

2016

The study of generation process of subsurface stormflow, typical of well-drained and high permeable soils, can be theoretically carried out by applying the continuity and the motion equations with the appropriate boundary conditions. However, difficulties and uncertainness on determining soil hydraulic properties and soil physics heterogeneities let this way not always feasible. In a different way, processes dynamic can be derived by the local scale through a coarse graining procedure, allowing to preserve medium motion character, while hydraulic fluctuation of the motion are lost. Following an approach as this, in this paper a simplified model to predict the runoff generation time, the so-…