Ciprian Palaghianu

Ciprian Palaghianu
Stefan cel Mare University of Suceava | USV · Faculty of Forestry

PhD Forestry / MSc Computer Science
Forest Ecology, Landscape Ecology

About

46
Publications
22,473
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194
Citations
Introduction
Ciprian Palaghianu currently works at the Faculty of Forestry, Stefan cel Mare University of Suceava. Ciprian does research in Forestry and Environmental Science with a special interest in forest ecology, landscape ecology and restoration ecology.
Additional affiliations
October 2001 - May 2021
Stefan cel Mare University of Suceava
Position
  • Teaching position
Description
  • Teaching and research

Publications

Publications (46)
Book
Full-text available
The regeneration of forest resources is one of the main objectives of modern forest management. The present book is based on my personal PhD thesis and aims to identify detailed features of the regeneration process and the characteristics of sapling interaction. The research involved evaluation of regeneration structure, dimensional differentiation...
Article
Full-text available
In Romania, the productivity of the new clones of hybrid poplar has not been tested in recent years. This case study aims to fill a gap on the productivity map of the new poplar clones, estimating, by biomass measurements, the productivity of two clones (AF2 and AF8) with different planting densities (from 1333 trees·ha−1 to 2667 trees·ha−1). The s...
Article
Full-text available
Significant gaps remain in understanding the response of plant reproduction to environmental change. This is partly because measuring reproduction in long-lived plants requires direct observation over many years and such datasets have rarely been made publicly available. Here we introduce MASTREE+, a dataset that collates reproductive time-series d...
Article
În 25 iunie 2021, Facultatea de Silvicultură a sărbătorit un astfel de profesor extraordinar. Universitatea „Ștefan cel Mare” din Suceava i-a acordat titlul de PROFESOR EMERITUS domnului Profesor universitar doctor inginer Radu Leontie Cenușă.Motivarea acestei distincții este fondată pe mai multe fapte:(i) rolul de creator de școală forestieră pe c...
Article
Full-text available
Diversitatea specifică reprezintă o modalitate directă de evaluare a biodiversității, iar indicele de entropie Shannon este cel mai frecvent utilizat. Diversitatea speciilor forestiere variază în limite largi între diferite zone sau regiuni. Modelul LandClim este potrivit pentru a surprinde dinamica vegetației forestiere la scări temporale și spați...
Article
Full-text available
This paper describes a permanent research platform (PRP) designed and implemented in "Codrul secular Slătioara" and its surroundings (2,205.85 ha), having also the role of introductory paper for future research articles based on data collected from this platform. "Codrul secular Slătioara" is known as one of the largest temperate mountainous intact...
Article
Full-text available
Masting represents a reproductive strategy in plant species, characterized by the synchronous population behaviour of producing large crops of flowers, fruit or seeds with a more or less regular frequency. This synchronous and highly variable production of large crops has practical importance for foresters. The information related to the variabilit...
Book
Full-text available
After 19 years, Romania has the second time the oportunity to organize this meeting. Thus, the Forestry Faculty from the ”Ștefan cel Mare” University of Suceava, has the honour to organise this important conference, in Suceava, in the main town of the Romanian part of historical province Bucovina, famous for the Princely Fortress and the medieval p...
Article
Full-text available
Barbu C.O., Cercetări ecofiziologice în arboretele de brad parazitate de vâsc din Obcinele Bucovinei. Editura Universității Ștefan cel Mare Suceava, 2018, 291 p. ISBN 978-973-666-536-3. Brudea V., Rîșca M.I., Enea I.C., Bioremedierea zonelor contaminate cu metale grele. Editura Universității „Ștefan cel Mare” Suceava, 2018, 226 p. ISBN 978-973-666...
Conference Paper
Full-text available
Considering the present state of afforestation and reforestation management in Romania, the process of renewing the forestation paradigm is analysed. Most of the management systems use an iterative method of improving the outcomes. Considering the classical phases Plan-Do-Check-Adjust, the forest management system is broken into pieces in order to...
Article
Full-text available
Global climate change is one of the biggest threats to the environment, with direct consequences for the terrestrial life and the human activity. Thus, the analysis of public knowledge regarding the importance, causes and effects of climate change is entirely justified. The public knowledge about the phenomenon of climate change is influenced by th...
Article
Masting is the highly variable and synchronous production of seeds by plants. Masting can have cascading effects on plant population dynamics and forest properties such as tree growth, carbon stocks, regeneration, nutrient cycling, or future species composition. However, masting has often been missing from forest models. Those few that simulate mas...
Article
Full-text available
Preserving forest legacy was an important objective throughout Romanian history and so is today. Artificial forest regeneration (including both reforestation and afforestation) was widely used to ensure the forest continuity, following forest harvesting, or to create new forests on non-forest lands. As Romania has undergone various political change...
Article
The first dendrochronological network of European beech (Fagus sylvatica L.) from eastern limit of its distribution was established covering the species’ altitudinal range (210 to 1160 m a.s.l.) and three eco-regions. Statistical analysis revealed spatial trends among the 14 chronologies, with increasing tree-ring variability and synchronicity towa...
Article
Full-text available
Tree masting is one of the most intensively studied ecological processes. It affects nutrient fluxes of trees, regeneration dynamics in forests, animal population densities, and ultimately influences ecosystem services. Despite a large volume of research focused on masting, its evolutionary ecology, spatial and temporal variability and environmenta...
Article
Full-text available
The effect of harrowing and weed control on biomass yields of hybrid poplar crops. Bucov. For. 16(2): 175-185. Abstract. Intensive hybrid poplar crops can produce an important bio-mass if adequate measures of management are being used. During the last years, there is a constant involvement on refining poplar cultivation technology, regarding instal...
Article
Full-text available
It is largely acknowledged that reality is a social construction, the understandings of a specific phenomenon being based on the shared assumptions about the reality. Media and social networks present a puzzling and bleak image of the Romanian forestry field, which results in the fact that the general public has formed a distorted image about the p...
Book
Full-text available
The book covers aspects related to the inventory of degraded lands. A robust methodology is proposed in order to design a database which can be used in projects of ecological reconstruction/ restoration. The database records characteristics of the degraded lands which are useful from the ecological point of view, but also features which could influ...
Article
Full-text available
Mast fruiting represents a synchronous population behaviour which can spread on large landscape areas. This reproductive pattern is generally perceived as a synchronous periodic production of large seed crops and has a significant practical importance to forest natural regeneration in order to synchronize cuttings. The mechanisms of masting are sti...
Conference Paper
Full-text available
Romania's forest cover is at this time below, but quite close to the European average. Despite that, recent forestry activities tend to be more oriented towards forest exploitation and not to increase the national forested area. The general public perception is that afforestation activities are limited only to NGO's projects and media actions and n...
Article
Full-text available
The paper is focused on the differences in the natural areas protection in the Czech Republic (CR) and Romania, considering the socioeconomic perspective. Further, the main aspects of nature conservation in both countries are discussed. They result from differences in economic and political development, and different natural conditions in both coun...
Article
Full-text available
The paper presents how the Analytic Hierarchy Process can be used to select the most suitable combination of new forest roads to build onto a forested area provided that social or ecological aspects are not jeopardized. All important features worth being considered when a new network of forest roads is designed were grouped in three types of criter...
Article
Full-text available
The paper analyses, from structural and compositional aspects, the diversity of vascular flora from natural mixed forests with coniferous and beech. Six experimental plots were installed in mixed forest stands with coniferous and beech from Slătioara natural reserve, and the vascular flora was studied on three different layers: trees, seedlings and...
Article
Full-text available
Diversity represents a key concept in ecology, and there are various methods of assessing it. The multitude of diversity indices are quite puzzling and sometimes difficult to compute for a large volume of data. This paper promotes a computational tool used to assess the diversity of different entities. The BIODIV software is a user-friendly tool, d...
Article
Full-text available
A growing recent literature argues that the adaptation to the climate change depends on the perceptions that the stakeholders have on potential effects of the climate change and the possibilities to counteract these effects. This study focuses on forestry engineers' perceptions on climate changes and adapting measures. A number of 76 semi-structure...
Article
Full-text available
Forest regeneration is a spatial multifaceted process with numerous unknown variables. The individual area or the area potentially available (APA) to an individual plant embodies an idea widely used in population ecology but it has fewer applications in forest research. It was used a Voronoi/ Thiessen tessellation in order to determine the individu...
Conference Paper
Full-text available
Managing National Parks in the Czech Republic: Economic Analysis, Petra Hlaváčková Forest associations of the National Park Mavrovo in the Republic of Macedonia, Jane Acevski, Bojan Simovski The analysis of life quality indicators in the area of natural resources and environment protection in chosen micro-regions of the Czech Republic, Jansky Jaros...
Conference Paper
Full-text available
Forest regeneration is a spatial complex process with numerous unknown variables. The area potentially available (APA) to an individual plant represents a concept extensively used in population ecology but it has fewer implementations in forest research. In this paper I use a Voronoi tessellation (Dirichlet or Thiessen tessellation) in order to det...
Thesis
Full-text available
The regeneration of forest resources is one of the main objectives of modern forest management. The present thesis aims to identify detailed features of the regeneration process and the characteristics of sapling interaction. The research involved evaluation of regeneration structure, dimensional differentiation of saplings, spatial pattern analysi...
Article
Full-text available
The paper presents the importance of research which characterizes the natural forest structure for the forest management. The lessons learned in these particular forest ecosystems can be integrated by the forest management objectives, in order to increase the sustainability of this type of resources. The project NATFORMAN was focused on the structu...
Article
Full-text available
Auxological and dendrometrical study in uneven age stands from U.P.II Cucureasa – O.S. Coşna The objective of this study was the auxological and dendrometrical analysis of an uneven age stand from U.P.II Cucureasa. The results consist in finding experimental distribution for diameters and heights, relations between dendrometrical elements of the st...
Article
Full-text available
Because the debasement generated by natural context, but also those of the custom invoke degrade land in the village Cordareni - Botosani (northern Moldavia of Romania), stabilization and ecological reconstruction of the land affected by mass movement processes, and especially the slides greater depth is more difficult and more costly compared with...
Article
Full-text available
Aspects concerning the dynamic of global forest resources In this article the actual state of global forest resources is presented, based on the latest information offered by important international institutes such as FAO, WRI or EFI. There are also outlined analysis and trends regarding the forest resources management.
Article
Full-text available
Present state and trend analysis of afforestation on large geographical areas In this paper the global dynamics of forest land is being examined. The analysis of this parameter reveals the main stream of the forest policy for the major regions and countries. The result shows that the forest development strategy of a state is being influenced by its...
Article
Full-text available
The purpose of this paper is to assess the structure of the dendrofloristic reserve Zamostea-Lunca considering the vegetation, environmental and stand charateristics. Zamostea-Lunca reserve represents a remarkable ecosystem containing different species such as oak, ash and maple.
Conference Paper
Full-text available
In this paper a software product is presented. We created it in order to help the researchers in their activity of extracting valuable information regarding spatial distribution of a population. The software, named SPATIAL, offers a wide range of instruments that should be used in describing spatial pattern of the individuals of a population. CAB d...
Conference Paper
Full-text available
The paper analyze, using statistical methods, the precision of the most often calculated competition indices and their desirable attributes that provide clarity in interpretation and facilitate stands comparisons. By simulation, three spatial patterns of stands are examined: completely random, regular and clustered distributions of trees. For the d...
Book
Full-text available
The paper addresses those interested in the forest ecosystems of Romania. All types of ecosystems are described, with the species of trees, plants, animals, amphibians, reptiles, etc. as well as trophic relations.
Conference Paper
Full-text available
Group decision makers making process - an analytic hierarchy approach The paper deals with a step-wise analytic hierarchy process (AHP) applied by a group of decision makers wherein nobody has a dominant position and it is unlikely to come to terms with respect to either the weights of different objectives or expected utilities of different alterna...
Article
Full-text available
Informatic System Used in Dendrochronological Research In this paper a software product, which was elaborated as a response to technical difficulties faced with dendrochronological researches, is presented. The application was designed in order to use a modular structure, with two modules.The first one provides the way in which the tree rings are m...

Questions

Questions (8)
Question
Which do you think are the best methods to assess the spatial association of plant species?
We speak about species‐pair associations, interspecific associations. So, if we want to identify patterns in species associations, what would be the most appropriate method?
We can use similarity coefficients, variance tests for detecting species associations or model analysis of species associations using abundance data.
Some classical approaches use indices as measures of co-occurrence and association (e.g. Dice, L. R. (1945). Measures of the amount of ecologic association between species).
There are also other ways:
  • using binary data (Z‐scores for pairwise indices of ecological similarity and association)
  • network approach for inferring species associations from co‐occurrence data
  • empirical Bayes approach as a tool to identify non-random species associations
Or we could use even methods adapted from community assembly theory.
Please provide your insights as additional information:
Which would be most relevant in the case of plant communities?
Which would be the easiest to apply or calculate?
Which would be the easiest to compare?
Question
If there is a set of n points in a plan (with known x, y coordinates), can I use a numerical criterion to establish if two points are neighbours, given the definition of a neighbour for Voronoi diagrams or Gabriel graphs?
I am interested in a numerical/ computational criterion, based on x, y coordinates of the p1, p2 points to test if p1 is a neighbour of p2. I am not interested in determining or storing all the neighbours, just a test to verify the neighbouring property.
Of course, the test can involve not only the x, y coordinates of the p1, p2 points but also the other properties of the set (e.g. min or max distances to all the other points).
Or there is another algorithm for constructing a Voronoi neighbouring matrix (a matrix of adjacency) for the set of points?
keywords: Voronoi, adjacency matrix, Gabriel graph,
Delaunay triangulation, neighbouring criterion
Question
Aerial or drone sowing/seeding - how efficient is the technology today?
In recent years, several ideas and initiatives have emerged that follow the concept of aerial sowing. As drones become more efficient and cheaper, could aerial seeding technology become
more efficient?
What would be the steps for aerial seeding?
1. Terrain assessment (terrain mapping, analyzing and classification of the terrain, building DTMs)
2. Evaluating the flight and seeding parameters (area cover, optimal route to minimize flight time, optimal height and speed for uniform seed dispersion, drone carrying capacity to evaluate the number of flights)
3. Execution of the seeding operations
Possible benefits of using drone seeding:
- efficient reforestations at low costs - drones can cover more ground than classical techniques during the same period (drones cover up to 5 hectares in one hour)
- optimal solution for terrain access issues - remote/isolated areas or rough terrain (steep, rocky slopes), inaccessible to terrestrial vehicles, machinery and workers
- reduce disturbances to wild or protected areas which require natural regeneration or artificial reforestation
- decreased health and safety risks (especially in areas affected by fires or windthrows)
- efficient complementary mean of regeneration
- creating a new ecosystem of methods used in reforestation or ecological restoration
Possible inconveniences:
-survival of the seeds might be problematic - the seeds are directly exposed to challenging environmental conditions (it can be consumed by rodents or birds, dehydrated by solar radiation). Problems could be overcome by using pelletized seeds (coating seeds or seed pods) that could increase the survival of seeds, protect it from predators or harsh environment, keeping the moisture for the early stages. There are already used technologies that use a compressed air device that "shoots" with seeds - and thus introduces them into the soil to a depth that gives them protection and moisture - this is ingenious (be careful that the seeds are not affected by the impact). Also, there are technologies which use a kind of capsules (seed pods) with a unique mix to provide nutrients, protection and moisture.
- uniformity of sowing - is influenced by wind speed, dispersal device/spreader, flight parameters
- poor conditions of seedbed due to lack of soil preparation
In the future, I am pretty sure that we will end up resorting to this technology, even if now the technology does not seem entirely feasible. Regardless of the technology and the improvements, there are limitations related to the species (type of seeds - large/small / more sensitive seeds; light species are advantageous because they do not need protection but the seedlings of shade species will be directly exposed to radiation and will succumb quickly) or competing vegetation (which can soon overwhelm seedlings and seedlings). We could overcome the competing vegetation, sowing at the end of the growing season when the grasses are dried. Still, we must have fast-growing woody species that are very resistant to competition.
The conclusion - do you know projects with reliable results or efficient drone seeding technologies that can be purchased at this time? I am interested in some "turn-key" technologies.
Can you give some examples or contacts?
I already checked these drone seeding projects:
Keywords: aerial seeding, aerial sowing, drone seeding, drone sowing

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Projects

Projects (4)
Project
The project is an initiative of constructing the masting chronology for the main forest tree species in Romania. Mast fruiting represents a synchronous population behaviour that can spread on large landscape areas. This reproductive pattern is generally perceived as a synchronous periodic production of large seed crops and has significant practical importance to forest natural regeneration in order to synchronize cuttings as well as ecological importance due to its cascading effects on forest communities. CRONOFOR - http://www.silvic.usv.ro/cronofor/
Project
BeonNAT proposes to use marginal lands in Europe to obtain forest biomass for the production of 8 products based on new bio-based value chains. This way, BeonNAT will allow the production of biodegradable bio-based products and bioactive compounds that will play an important role TO REPLACE FOSSIL-BASED COMPETING SUBSTITUTE PRODUCTS. BeonNAT will help to mitigate the impacts of climate change, enabling smarter and more sustainable products and materials, to make the most efficient use of our renewable natural resources, as well as providing huge economic opportunities for the bio-based economy in Europe.
Project
The aim of the project is to develop a robust methodology for selecting and ranking forest land areas for reforestation.