Charalampos G Paraskevas

Aristotle University of Thessaloniki | AUTH · School of Agriculture

Avermectins, such as eprinomectin (EPM), are antiparasitic drugs widely and globally used. There is undisputed evidence that they could be a threat for the terrestrial ecosystem. Despite their global use, data for avermectins behaviour and fate in soils are scarce. The objectives of this research were to conduct adsorption experiments in the soil t...

Pinios River basin is the largest fully developing basin in Greece, while it is also one of the highest productive basins of the country. Pinios River delta (PRD) has been included in the " special protection areas " and habitats network within the framework of Directives 79/409 and 92/43 (NATURA2000), respectively, and therefore is of high environ...

Climate change effects are expected to have a strong impact on agricultural sector, especially in Mediterranean region in which irrigated agriculture is already developed while water resources availability is expected to be decreased. This study aims to investigate the potential climate change effects in crop water demands and the corresponding imp...

In Greece, crops are frequently cultivated in small isolated areas in close proximity to roads and bare soils and therefore evapotranspiration is affected by local advection. Under these circumstances, oasis effect conditions are present and evapotranspiration is higher than what is expected. In this paper, the evapotranspiration and soil water dyn...

Calibration equations for two capacitance water content probes This paper presents the calibration equations of two capacitance probes for monitoring the soil water content in a lysimeter field. Capacitance probes provide readings at desired depths and time intervals. The calibration equations are derived by regression analysis between measurements...

The current study investigates the use of a non-destructive hyperspectral imaging approach for the evaluation of kiwifruit cv. “Hayward” internal quality, focusing on physiological traits such as soluble solid concentration (SSC), dry matter (DM), firmness, and tannins, widely used as quality attributes. Regression models, including partial least s...

This study aimed to simulate dynamic irrigation management zones (MZs) in two maize fields for a variable rate hose reel fertigation machine (VRFM) with a four-section boom control. Soil moisture content was measured from nine and four soil moisture sensors in Field 1 (8.2 ha) and Field 2 (2.5 ha), respectively, on different dates during the 2022 c...

Irrigation plays a crucial role in maize cultivation, as watering is essential for optimizing crop yield and quality, particularly given maize's sensitivity to soil moisture variations. In the current study, a hybrid Long Short-Term Memory (LSTM) approach is presented aiming to predict irrigation scheduling in maize fields in Bursa, Turkey. A criti...

This study aimed to simulate dynamic irrigation management zones (MZs) in two maize fields for a variable rate hose-reel fertigation machine (VRFM) with a 4-section boom control. Soil moisture content was measured from nine and four soil moisture sensors in Field 1 (8.2 ha) and Field 2 (2.5 ha), respectively in different dates during the 2022 crop...

Potato cultivation is a significant agricultural activity worldwide. As a staple food in many countries, potatoes provide essential nutrients and are a significant source of income for farmers. This paper investigates current and future net irrigation requirements for potatoes in combination with LCA (life cycle assessment) to assess the GHG emissi...

Leak 2D is a new two-dimensional dual permeability mathematical model for the simulation of the preferential flow in the vadose zone. In this model, water flow in the soil matrix domain is described by the two-dimensional h-based Richards’ equation. Water flow in the fracture domain is estimated using the kinematic wave approach. Richards’ equation...

LEAK2D (L2D) is a new, two-dimensional, dual-permeability model for the simulation of preferential water flow in the vadose zone, allowing for the continuous exchange of water between the matrix and the fracture domain. It is based on the two-dimensional Richards equation for the simulation of flow in the matrix domain and on the kinematic wave equ...

Plants diseases constitute a substantial threat for farmers given the high economic and environmental impact of their treatment. Detecting possible pathogen threats in plants based on non-destructive remote sensing and computer vision methods offers an alternative to existing laboratory methods and leads to improved crop management. Vine is an impo...

The estimation of saturated hydraulic conductivity is a key parameter for studying the water flow in the unsaturated zone of the soil. In this work, a combined modelling approach of the waterfront movement is elaborated, integrating a physical analogue type device with image analysis. A customized Hele-Shaw apparatus is designed for the wetting pro...

Veterinary pharmaceuticals are pollutants that received much attention during the last 20 years. Macrocyclic lactones are a class of drugs globally used in animal and human health, as well as crops protection. Some of its members are key substances for global food security. In this research, the mobility if eprinomectin (EPM) in soil columns (25 cm...

Coastal delta plains are areas with high agricultural potential for the Mediterranean region because of their high soil fertility, but they also constitute fragile systems in terms of water resources management because of the interaction of underlying aquifers with the sea. Such a case is the Pinios River delta plain located in central Greece, whic...

The main economic activity in the Mygdonia basin located in Northern Greece is agriculture which, however, could not be sustained by its renewable water resources. As a result, Mygdonia basin has a negative water balance and faces a severe environmental degradation since the last decades. The water availability of the Mygdonia basin as well as of m...

The aim of this study is the determination of water requirements and the assessment of the water footprint for the main crops of the delta of Pinios river. Delta of Pinios is an area with great socio-economic and ecological importance in which the water demand is dominated by agriculture. The water footprint is a water requirement indicator which i...

As pressures on water resources have intensified lately, the impacts of water scarcity and pollution render the need of developing new “tools” to evaluate and communicate the risks to the wide audience. A debate has now emerged about the value, and the shortcomings of using water footprint to better support water resources management. Based on this...

The present paper presents measurements of water flow and suspended particulate material of Pinios River (Thessaly) during the hydrological year 2013/2014. The measurements were carried out in two positions before Pinios enters the agricultural deltaic plain and one inside the delta. Furthermore, an effort is made to estimate the water contribution...

Eprinomectin (EPM) is an antiparasitic drug registeredfor use in cattle. It is highly toxic for the biota (e.g. Daphnia species, invertebrates and soil nematodes). The OECD‟s protocol 312 (Leaching in soil columns) was applied to examine its mobility in soil. EPM was placed on the top of three soil columns (diameter 10 cm and soil height 25 cm) whi...