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1. Comparison of the performances of Nero Siciliano pigs reared indoors and outdoors. 1. Growth and carcass composition

Author:
Pugliese, C.; Madonia, G.; Chiofalo, V.; Margiotta, S.; Acciaioli, A.; Gandini, G.
Source:
Meat science 2003 v.65 no.2 pp. 825-831
ISSN:
0309-1740
Subject:
pork; gilts; beans; feeds; swine breeds; extensive farming; grazing; animal morphology; estimation; carcass yield; linear models; boars; pastures; slaughter weight; traditional farming; small cereal grains; feed conversion; dressing percentage; body measurements; castration; backfat; age at slaughter; free stalls; animal growth; allometry; farrowing pens; Italy
Abstract:
... A total of 78 female and male Nero Siciliano pigs were used. Forty-one pigs were reared following the traditional management system, 37 pigs were reared in pens with a small outdoor paddock and fed to appetite using commercial rations according to the growing period. Both male and female pigs were castrated. All pigs were weighed and measured periodically. Body measurements included height at with ...
DOI:
10.1016/S0309-1740(02)00287-5
PubMed:
22063445

2. Electrical measurement of tree root absorbing surfaces by the earth impedance method: 2. Verification based on allometric relationships and root severing experiments

Author:
Cermak, J.; Ulrich, R.; Stanek, Z.; Koller, J.; Aubrecht, L.
Source:
Tree physiology 2006 v.26 no.9 pp. 1113-1121
ISSN:
0829-318X
Subject:
mathematical models; electrical conductivity; root systems; forest trees; absorbance; allometry; equations; Picea abies; plant physiology; measurement; Czech Republic; Italy; Sweden
Abstract:
... We validated, by means of allometric relationships and root severing experiments, the modified earth impedance method developed for measuring absorbing root surfaces. For the allometric studies, a series of 350 small and large trees of six broadleaf and coniferous species in several experimental sites was examined. We found a good linear ln-ln fit between absorbing root surface area and basal area ...
DOI:
10.1093/treephys/26.9.1113
PubMed:
16740487

3. Effects of environment and progeny on biomass estimations of five hybrid poplar families grown at three contrasting sites across Europe

Author:
Dillen, S.Y.; Marron, N.; Bastien, C.; Ricciotti, L.; Salani, F.; Sabatti, M.; Pinel, M.P.C.; Rae, A.M.; Taylor, G.; Ceulemans, R.
Source:
Forest ecology and management 2007 v.252 no.1-3 pp. 12-23
ISSN:
0378-1127
Subject:
tree growth; genetic transformation; estimation; mathematical models; hybrids; forest trees; phenotype; branches; equations; allometry; regression analysis; crossing; environmental factors; genetic variation; Populus; dry matter partitioning; France; Italy; England
DOI:
10.1016/j.foreco.2007.06.003

4. Indirect estimation of benthic secondary production in the Lagoon of Venice (Italy)

Author:
Tagliapietra, D.; Cornello, M.; Pessa, G.
Source:
Hydrobiologia 2007 v.588 no.1 pp. 205-212
ISSN:
0018-8158
Subject:
allometry; benthic organisms; biomass; data collection; equations; littoral zone; regression analysis; seagrasses; secondary productivity; temperature; Italy
Abstract:
... Five published indirect methods to estimate benthic secondary production of intertidal mudflats and a new proposed formulation based on quarter-power allometric scaling and the “Universal Temperature Dependence” of biological processes (UTD) were compared. For this purpose, a dataset consisting of an annual series of samples, taken from the Lagoon of Venice from March 1996 to March 1997, at sites ...
DOI:
10.1007/s10750-007-0663-0

5. Stand biometry and leaf area distribution in an old olive grove at Andria, southern Italy

Author:
Jan Čermák; Jan Gašpárek; Francesca De Lorenzi; Hamlyn G. Jones
Source:
Annals of forest science 2007 v.64 no.5 pp. 491-501
ISSN:
1286-4560
Subject:
Olea europaea; allometry; biometry; canopy; image analysis; leaf area index; leaves; models; olives; photographs; stems; stocking rate; trees; Italy
Abstract:
... The objectives of this paper were (1) to provide general biometry data for an 80-year-old olive (Olea europea L., cv. Coratina) grove in Andria, southern Italy, and (2) to compare different methods for estimating leaf area distributions. Stand biometry was represented by a stocking density of 132 trees ha⁻¹, mean spacing of 8.7 m and mean social area (proportional to spacing and tree size) of abou ...
DOI:
10.1051/forest:2007026

6. Stand structure and foliage distribution in Quercus pubescens and Quercus cerris forests in Tuscany (central Italy)

Author:
Čermák, Jan; Tognetti, Roberto; Nadezhdina, Nadezhda; Raschi, Antonio
Source:
Forest ecology and management 2008 v.255 no.5-6 pp. 1810-1819
ISSN:
0378-1127
Subject:
deciduous forests; canopy; Quercus; forest trees; tree crown; spatial distribution; allometry; equations; leaf area index; regression analysis; drought; forest stands; environmental factors; density; stand structure; leaves; Italy; Mediterranean region
Abstract:
... We examined vertical foliage distribution (based on destructive harvesting) in the deciduous oak species Quercus pubescens and Quercus cerris, at the level of the entire tree and the forest community, in two adjacent stands in Tuscany (central Italy). The study was aimed at characterizing the structure of these stands in a manner suitable as a biometric background for comparison with canopy proces ...
DOI:
10.1016/j.foreco.2007.12.003

7. Degree of tapering of xylem conduits in stems and roots of small Pinus cembra and Larix decidua trees

Author:
Petit, Giai; Anfodillo, Tommaso; De Zan, Carlo
Source:
Botany 2009 v.87 no.5 pp. 501-508
ISSN:
1916-2804
Subject:
interspecific variation; growth rings; forest trees; Larix decidua; montane forests; allometry; tree trunk; height; treeline; spatial variation; altitude; roots; Pinus cembra; Italy
DOI:
10.1139/B09-025

8. Land Use Change and Forest Carbon Sink Assessment in an Alpine Mountain Area of the Veneto Region (Northeast Italy)

Author:
Elena Dalla Valle; Silvia Lamedica; Roberto Pilli; Tommaso Anfodillo
Source:
Mountain research and development 2009 v.29 no.2 pp. 161-168
ISSN:
0276-4741
Subject:
allometry; biometry; carbon sinks; forest land; forests; land cover; land use change; orthophotography; research and development; surface area; Italy
Abstract:
... In this study, we analyzed the variation of forest land cover in a mountain area of Veneto Region in northeast Italy. The analysis was done by comparing orthorectified aerial photographs taken in 1991 with orthophotos dated 2003, using photo interpretation of points with casual distribution on sample areas, according to a stratified sampling. The study yielded a statistically relevant increment of ...
DOI:
10.1659/mrd.1071

9. Allometric models for non-destructive leaf area estimation in grafted and ungrafted watermelon (Citrullus lanatus Thunb.)

Author:
Rouphael, Youssef; Mouneimne, Abdul Halim; Rivera, Carlos Mario; Cardarelli, Mariateresa; Marucci, Alvaro; Colla, Giuseppe
Source:
Journal of food, agriculture & environment 2010 v.8 no.1 pp. 161-165
ISSN:
1459-0255
Subject:
Citrullus lanatus var. lanatus; watermelons; plant morphology; leaves; measurement; length; leaf area; grafting (plants); width; nondestructive methods; allometry; plant growth; cultivars; genetic variation; regression analysis; growth models; mathematical models; equations; model validation; Italy
Abstract:
... Leaf area estimation is an important biometrical observation one has to do for comparing plant growth in field and greenhouse experiments. Determining the individual leaf area (LA) of watermelon (Citrillus lanatus Thunb.) involves measurements of leaf parameters such as length (L) and width (W), or some combinations of these parameters. Two-year investigation was carried out during 2006 (on six cu ...

10. Morphological variation in riverine cyprinids: a geometric morphometric contribution

Author:
R. Bravi; M. Ruffini; M. Scalici
Source:
Italian journal of zoology 2013 v.80 no.4 pp. 536-546
ISSN:
1748-5851
Subject:
Rutilus rubilio; Squalius; Telestes; allometry; foraging; freshwater fish; interspecific variation; morphometry; peduncle; population; tail; zoology; Italy
Abstract:
... This study aimed to contribute to understanding the role of changes in proportions related to variation in size in freshwater fish, particularly Rutilus rubilio , Squalius lucumonis and Telestes muticellus , from central Italy. The ontogenetic shape variation was described by a multivariate regression where the independent and dependent variables were size and a set of shape variables (the latter ...
DOI:
10.1080/11250003.2013.829129

11. Nematode biomass and allometric attributes as indicators of environmental quality in a Mediterranean harbour (Ligurian Sea, Italy)

Author:
Valentina Losi; Mariapaola Moreno; Luigi Gaozza; Luigi Vezzulli; Mauro Fabiano; Giancarlo Albertelli
Source:
Ecological indicators 2013 v.30 pp. 80-89
ISSN:
1470-160X
Subject:
Nematoda; allometry; biomass; body length; correlation; ecosystems; environmental factors; environmental indicators; environmental quality; organic matter; oxygen; redox potential; sediments; Italy
Abstract:
... Nematode biomass and allometric attributes (size spectra, body length and width, morphotypes) were measured and related to the environmental quality of sediments of the Genoa-Voltri commercial harbour (Ligurian Sea, NW Mediterranean) to investigate their possible use as ecological indicators. The sediment quality was defined by measuring the level of organic enrichment (quantity and biochemical co ...
DOI:
10.1016/j.ecolind.2013.01.034

12. The study of ontogenetic trajectory reveals the timing of reproductive events in Ancylus fluviatilis (Gastropoda: Planorbidae)

Author:
Ottavio Soppelsa; Pasquale Raia; Valeria Maselli; Domenico Fulgione
Source:
Molluscan research 2013 v.33 no.2 pp. 80-86
ISSN:
1448-6067
Subject:
Planorbidae; allometry; models; molluscs; ontogeny; principal component analysis; reproductive traits; rivers; univoltine habit; Italy
Abstract:
... We analysed ontogenetic shape change in the planorbid limpet Ancylus fluviatilis (Müller, 1774) in two rivers in Southern Italy. We developed a new method to discriminate among different cohorts in Ancylus , based on principal component analysis. The method is useful when shape change during growth is allometric, as in our study model. We discovered that bivoltinism occurs in Ancylus in Southern I ...
DOI:
10.1080/13235818.2013.777889

13. Assessing urban tree carbon storage and sequestration in Bolzano, Italy

Author:
Alessio Russo; Francisco J. Escobedo; Nilesh Timilsina; Armin Otto Schmitt; Sebastian Varela; Stefan Zerbe
Source:
International journal of biodiversity science, ecosystem services & management 2014 v.10 no.1 pp. 54-70
ISSN:
2151-3740
Subject:
allometry; biofuels; biomass; carbon; carbon dioxide; carbon markets; carbon sequestration; cities; climate change; composts; design for environment; ecosystem services; equations; forests; green waste; greenhouse gas emissions; grounds maintenance; issues and policy; models; trees; Alps region; Italy
Abstract:
... Recent climate change, environmental design, and ecological conservation policies require new and existing urban developments to mitigate and offset carbon dioxide emissions and for cities to become carbon neutral. Some North American models and tools are available and can be used to quantify the carbon offset function of urban trees. But, little information on urban tree carbon storage and seques ...
DOI:
10.1080/21513732.2013.873822

14. Analysing the effect of stand density and site conditions on structure and growth of oak species using Nelder trials along an environmental gradient: experimental design, evaluation methods, and results

Author:
Enno Uhl; Peter Biber; Matthias Ulbricht; Michael Heym; Tamás Horváth; Ferenc Lakatos; Janós Gál; Leonhard Steinacker; Giustino Tonon; Maurizio Ventura; Hans Pretzsch
Source:
Forest Ecosystems 2015 v.2 no.1 pp. 17
Subject:
Mediterranean climate; Quercus robur; allometry; autocorrelation; experimental design; forest ecosystems; forest stands; forest yields; forests; planting; stand density; trees; Belgium; Germany; Hungary; Italy; Mexico
Abstract:
... BACKGROUND: Most current approaches in forest science and practice require information about structure and growth of individual trees rather than - or in addition to - sum and mean values of growth and yield at forest stand level as provided by classic experimental designs. By inventing the wheel design, Nelder provided the possibility to turn to the individual tree as basic information unit. Such ...
DOI:
10.1186/s40663-015-0041-8

15. Biomass allocation in natural regeneration of Fagus sylvatica and Picea abies trees in Italian Alps

Author:
Fabio Pastorella; Alessandro Paletto
Source:
Metsanduslikud uurimused 2015 v.61 no.1 pp. 35-46
ISSN:
1736-8723
Subject:
Fagus sylvatica subsp. sylvatica; Picea abies; aboveground biomass; allometry; belowground biomass; canopy; case studies; dry matter partitioning; equations; leaf area index; natural regeneration; ontogeny; roots; saplings; seedlings; shoots; soil water; stand density; Alps region; Italy
Abstract:
... Biomass allocation in seedlings and saplings at different stages of growth is important information for studying the response of species to site conditions. The objectives of the paper are: (a) to analyse the relationship between height and biomass in young Norway spruce and European beech trees, (b) to study the influence of the leaf area on ontogenetic growth stages and biomass sequestration cap ...
DOI:
10.2478/fsmu-2014-0009

16. Estimating forest aboveground biomass by low density lidar data in mixed broad-leaved forests in the Italian Pre-Alps

Author:
Antonio Montagnoli; Sara Fusco; Mattia Terzaghi; Alan Kirschbaum; Dirk Pflugmacher; Warren B Cohen; Gabriella S Scippa; Donato Chiatante
Source:
Forest Ecosystems 2015 v.2 no.1 pp. 10
Subject:
aboveground biomass; allometry; deciduous forests; equations; forest ecosystems; forest inventory; lidar; models; monitoring; mountains; trees; variance; Italy
Abstract:
... BACKGROUND: Estimation of forest biomass on the regional and global scale is of great importance. Many studies have demonstrated that lidar is an accurate tool for estimating forest aboveground biomass. However, results vary with forest types, terrain conditions and the quality of the lidar data. METHODS: In this study, we investigated the utility of low density lidar data (<2 points∙m⁻²) for esti ...
DOI:
10.1186/s40663-015-0035-6

17. Transportation carbon dioxide emission offsets by public urban trees: A case study in Bolzano, Italy

Author:
Alessio Russo; Francisco J. Escobedo; Nilesh Timilsina; Stefan Zerbe
Source:
Urban forestry & urban greening 2015 v.14 no.2 pp. 398-403
ISSN:
1618-8667
Subject:
allometry; carbon dioxide; carbon markets; case studies; climate; energy; equations; greenhouse gas emissions; inventories; population growth; traffic; trees; urban areas; Alps region; Asia; Italy; North America
Abstract:
... Increased carbon dioxide (CO2) emissions in urban areas due to rapid population growth and consequent increased energy use and vehicular traffic is a worldwide problem contributing to an altered global climate. Studies from North America and Asia have reported that urban trees can be used to mitigate these emissions. However, little is known about the role of European urban streetscapes in mitigat ...
DOI:
10.1016/j.ufug.2015.04.002

18. Effect of thinning on above-ground biomass accumulation in a Douglas-fir plantation in southern Italy

Author:
Vittoria Coletta; Giuliano Menguzzato; Gaetano Pellicone; Antonella Veltri; Pasquale Antonio Marziliano
Source:
Journal of forestry research 2016 v.27 no.6 pp. 1313-1320
ISSN:
1007-662X
Subject:
Pseudotsuga menziesii; aboveground biomass; allometry; biomass production; carbon; carbon sinks; dry matter partitioning; emissions; equations; global warming; long term effects; Italy
Abstract:
... We investigated the effects of a long-term thinning experiment on the distribution of above-ground biomass of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) in a plantation in southern Italy. Allometric equations were used to estimate biomass and partitioning to stem and crown compartments. Variation in biomass stock estimated with allometric equations were evaluated according t ...
DOI:
10.1007/s11676-016-0247-9

19. Organic input quality is more important than its quantity: C turnover coefficients in different cropping systems

Author:
Antonio Berti; Francesco Morari; Nicola Dal Ferro; Gianluca Simonetti; Riccardo Polese
Source:
European journal of agronomy 2016 v.77 pp. 138-145
ISSN:
1161-0301
Subject:
allometry; crop rotation; crops; humification; meadows; models; organic fertilizers; physicochemical properties; roots; slurries; soil; soil organic carbon; Italy
Abstract:
... Annual C input to soil is a major factor affecting soil organic carbon (SOC) dynamics. However different types of C-sources can have different behaviour, in relation to their chemical characteristics and how they interact with soil. Root-derived C, in particular, should be more efficient than other organic materials as a result of the physicochemical and biological characteristics of the surroundi ...
DOI:
10.1016/j.eja.2016.03.005

20. Biomass and volume modeling in Olea europaea L. cv “Leccino”

Author:
Antonio Brunori; Francesca Dini; Claudio Cantini; Giovanna Sala; Tommaso La Mantia; Tiziano Caruso; Francesco Paolo Marra; Carlo Trotta; Luigi Nasini; Luca Regni; Primo Proietti
Source:
Trees 2017 v.31 no.6 pp. 1859-1874
ISSN:
0931-1890
Subject:
Olea europaea; allometry; basins; belowground biomass; biomass production; cultivars; data collection; dry environmental conditions; equations; forest trees; fruit trees; groves; leaf area index; models; olives; rainfed farming; roots; shoots; Italy
Abstract:
... KEY MESSAGE : This work demonstrates that the Olive tree, which is managed and pruned as a fruit tree, can be treated as a forest tree using allometric equations, to estimate both biomass production and volumes. The Olive tree (Olea europaea L.) is an evergreen tree that can grow and accumulate a relatively high amount of dry matter, even in dry environmental conditions common in the Mediterranean ...
DOI:
10.1007/s00468-017-1592-9