Investigation and isolation of a protein-vitamin concentrate from pine needles

1976 ◽  
Vol 12 (4) ◽  
pp. 456-460 ◽  
Author(s):  
S. M. Repyakh ◽  
N. G. Novikova ◽  
G. V. Tikhomirova ◽  
É. D. Levin
Keyword(s):  
Pine Needles ◽  
Vitamin Concentrate

A comparative study of the effects of fire retardants on the pyrolysis of cellulose and Pinus halepensis pine-needles

1995 ◽  
Vol 31 ◽  
pp. 85-100 ◽  
Author(s):  
A.A. Pappa ◽  
N.E. Tzamtzis ◽  
M.K. Statheropoulos ◽  
S.E. Liodakis ◽  
G.K. Parissakis
Keyword(s):  
Comparative Study ◽  
Pinus Halepensis ◽  
Pine Needles ◽  
Fire Retardants

scholarly journals Carbon Derived from Pine Needles as a Na+ -Storage Electrode Material in Dual-Ion Batteries

2017 ◽  
Vol 1 (7) ◽  
pp. 1700055 ◽  
Author(s):  
Xiaohong Wang ◽  
Cheng Zheng ◽  
Li Qi ◽  
Hongyu Wang
Keyword(s):  
Electrode Material ◽  
Pine Needles

scholarly journals Solvent-saving approaches for the extraction of siloxanes from pine needles, soils and passive air samplers

2016 ◽  
Vol 8 (27) ◽  
pp. 5378-5387 ◽  
Author(s):  
S. Ramos ◽  
J. A. Silva ◽  
V. Homem ◽  
A. Cincinelli ◽  
L. Santos ◽  
...  
Keyword(s):  
Pine Needles ◽  
Environmental Matrices ◽  
Analytical Protocols

Solvent-saving analytical protocols are a valid alternative to quantify siloxanes in environmental matrices.

Different responses of two carbon-based defences in Scots pine needles to nitrogen fertilization

Ecoscience ◽  
1998 ◽  
Vol 5 (4) ◽  
pp. 502-507 ◽  
Author(s):  
Christer Björkman ◽  
Maarit Kytö ◽  
Stig Larsson ◽  
Pekka Niemelä
Keyword(s):  
Scots Pine ◽  
Nitrogen Fertilization ◽  
Pine Needles ◽  
Scots Pine Needles ◽  
Carbon Based

scholarly journals Bioindication of atmospheric air quality based on the condition of Pinus sylvestris l. Needles in the conditions of the city of Orsk, Orenburg region

2021 ◽  
Vol 2 (44) ◽  
pp. 3-3
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Air Pollution ◽  
Pinus Sylvestris ◽  
Morphological Characteristics ◽  
Southern Urals ◽  
Pine Needles ◽  
The Southern Urals ◽  
Atmospheric Air ◽  
Orenburg Region ◽  
The City ◽  
Industrial Center

The article presents the results of a bioindication study of atmospheric air pollution on the condition of pine needles (Pinus sylvestris L.) on the example of the city of Orsk, Orenburg region. The city of Orsk is a major industrial center of the Southern Urals. The research was carried out on 6 sites located within the city with different anthropogenic loads. The research method is based on the direct dependence of damage to Pinus sylvestris L. needles (necrosis and desiccation) on the level of atmospheric air pollution. Analyzed the morphological characteristics of the needles of Pinus sylvestris L. in the studied areas. The result of the study is an assessment of the state of atmospheric air. Keywords: BIOINDICATION, SCOTS PINE, NEEDLES, AIR POLLUTION, ORSK CITY, ORENBURG REGION

scholarly journals Does Mixing Tree Species Affect Water Storage Capacity of the Forest Floor? Laboratory Test of Pine-Oak and Fir-Beech Litter Layers

Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1674
Author(s):  
Anna Ilek ◽  
Małgorzata Szostek ◽  
Anna Mikołajczyk ◽  
Marta Rajtar
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Tree Species ◽  
Forest Floor ◽  
Storage Capacity ◽  
Water Storage ◽  
Pine Needles ◽  
Litter Layer ◽  
Water Storage Capacity ◽  
Organic Debris

During the last decade, tree species mixing has been widely supported as a silvicultural approach to reduce drought stress. However, little is known on the influence of tree species mixing on physical properties and the water storage capacity of forest soils (including the forest floor). Thus, the study aimed to analyze the effect of mixing pine needles and oak leaves and mixing fir needles and beech leaves on hydro-physical properties of the litter layer during laboratory tests. We used fir-beech and pine-oak litter containing various shares of conifer needles (i.e., 0, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100%) to determine the influence of the needle admixture on bulk density, total porosity, macroporosity, water storage capacity, the amount of water stored in pores between organic debris and the degree of saturation of mixed litter compared to broadleaf litter (oak or beech). We found that the admixture of fir needles increased the bulk density of litter from 7.9% with a 5% share of needles to 55.5% with a 50% share (compared to pure beech litter), while the share of pine needles < 40% caused a decrease in bulk density by an average of 3.0–11.0% (compared to pure oak litter). Pine needles decreased the water storage capacity of litter by about 13–14% with the share of needles up to 10% and on average by 28% with the 40 and 50% shares of pine needles in the litter layer. Both conifer admixtures reduced the amount of water stored in the pores between organic debris (pine needles more than fir needles).

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