INFLUENCE OF THE MANAGED FORESTS ON CO2 BALANCE IN EARTH’S ATMOSPHERE

2021 ◽  
Vol 43 (1) ◽  
pp. 54-66
Author(s):  
Gennadiy BULATKIN
Keyword(s):  
Indirect Costs ◽  
Power Input ◽  
Nitrogen Fertilizers ◽  
Total Power ◽  
Natural Form ◽  
Earth’S Atmosphere ◽  
Aspen Tree ◽  
Co2 Balance ◽  
Earth's Atmosphere ◽  
The Impact

Technical energy costs required for forest cultivation, estimation of C-CO2 fluxes in model experiments with coniferous species of pine Pinus sylvestris L. and leaves species, natural form and gene modified clone of the ordinary aspen tree Populus tremula L., have been analyzed. At plantation cultivation of transgenic aspen clone with nitrogen fertilizers indirect costs of technical energy made up 85 % of total power input. A new three-stage method has been developed for assessing the impact of forests on the CO2 balance in the Earth's atmosphere. The final value of CO2 sink from the atmosphere at afforestation depends on the way wood is used.

4. Atmospheric composition

2017 ◽  
pp. 65-92
Author(s):  
Paul I. Palmer
Keyword(s):  
Ultraviolet Radiation ◽  
Atmospheric Aerosols ◽  
Stratospheric Ozone ◽  
Ultraviolet B ◽  
Atmospheric Composition ◽  
Earth’S Atmosphere ◽  
Stratospheric Ozone Layer ◽  
History Of ◽  
Earth's Atmosphere ◽  
The Impact

Nitrogen, oxygen, and argon represent more than 99.9% of the air we breathe. But Earth’s atmosphere hasn’t always had that composition—it is on at least its third distinctive atmosphere. ‘Atmospheric composition’ provides a brief history of Earth’s atmosphere, before considering the two most important regions of the atmosphere for human survival—the stratosphere and troposphere. The stratospheric ozone layer shields harmful ultraviolet-B light penetrating to the surface, thereby protecting humans and ecosystems from harmful ultraviolet radiation. The troposphere is where billions of people live and breathe. It is also where air pollutants are emitted, wildfires burn, vegetation grows, and where the oceans exchange gases. The impact of atmospheric aerosols and greenhouse gases is also discussed.

Observational evidence of the meteoritic bombardment

1967 ◽  
Vol 296 (1446) ◽  
pp. 316-319
Keyword(s):  
Surface Layer ◽  
Lunar Surface ◽  
Prima Facie ◽  
Observational Evidence ◽  
The Moon ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere ◽  
The Impact

Prima facie evidence for the meteoritic bombardment of the Moon is given by the known meteoritic environment of the Earth’s atmosphere. The impact by particles of different sizes and the likely damage to the lunar surface are discussed, reference being made to terrestrial craters and experiments with hypervelocity projectiles. An attempt is made to reconcile the formation and distribution of certain features with the results of meteoritic bombard­ment. In a number of instances the reconciliation is unsatisfactory and it is likely that the cause may be internal. It is pointed out that once a surface layer of dust has been formed, the effect of subsequent impacts by the smaller particles will only very slowly increase the depth.

scholarly journals Estimating the Lower Limit of the Impact of Amines on Nucleation in the Earth’s Atmosphere

Entropy ◽  
2015 ◽  
Vol 17 (5) ◽  
pp. 2764-2780 ◽  
Author(s):  
Alexey Nadykto ◽  
Jason Herb ◽  
Fangqun Yu ◽  
Yisheng Xu ◽  
Ekaterina Nazarenko
Keyword(s):  
Lower Limit ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere ◽  
The Impact

scholarly journals The Mexican Meteor Network: A Preliminary Proposal

2016 ◽  
Vol 55 (1) ◽  
Author(s):  
Guadalupe Cordero-Tercero ◽  
Fernando Velázquez-Villegas ◽  
Carlos Francisco Vázquez-Hernández ◽  
José Luis Ramírez-Cruz ◽  
Alejandro Arévalo-Vieyra ◽  
...  
Keyword(s):  
Bird Migration ◽  
Meteor Showers ◽  
Earth’S Atmosphere ◽  
Planetary Geology ◽  
Cometary Material ◽  
Atmosphere Interaction ◽  
Earth's Atmosphere ◽  
Social Importance ◽  
The Impact

The study of asteroidal and cometary material entering into Earth’s atmosphere has scientific and social importance. The observation and study of the impact of meteoroids with our planet is a way of studying geophysics and planetary geology without spaceships. This article describes the progress of the installation of the Mexican Meteor Network (Citlalin Tlamina). At medium and long term, the aim of this network is to cover the entire national territory with stations that allow us to record the entry of meteoroids into Earth’s atmosphere. This seeks to: a) study the meteoroid-atmosphere interaction, b) determine impactor’s physical properties; c) analyze flows and Radiant deviations of known meteor showers, d) find or ratify new meteor showers; e) recover and study meteorites, f) study the interaction of the shock wave with the ground by analyzing seismograms; g) report people in real time (or near) the occurrence of fireballs and fragmentation of meteoroids in the atmosphere, avoiding the fear of this phenomenon and provide support for Civil Protection, h) find areas of opportunity that can use the images captured by the cameras (weather, bird migration, etc.). In this paper, it is shown the prototype of the base to house the cameras whose purpose is to protect them from the environment, prevent condensation within the container and keep the cameras below 25 °C.

scholarly journals The impact of geomagnetic spikes on the production rates of cosmogenic 14 C and 10 Be in the Earth's atmosphere

2015 ◽  
Vol 42 (8) ◽  
pp. 2759-2766 ◽  
Author(s):  
Alexandre Fournier ◽  
Yves Gallet ◽  
Ilya Usoskin ◽  
Philip W. Livermore ◽  
Gennady A. Kovaltsov
Keyword(s):  
Production Rates ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere ◽  
The Impact

scholarly journals Modeling of the Dark Phase of Flight and the Impact Area for Meteorites of Real Shapes

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Karol Havrila ◽  
Juraj Tóth ◽  
Leonard Kornoš
Keyword(s):  
The Body ◽  
Particle Orientation ◽  
Symmetric Body ◽  
Spherically Symmetric ◽  
The Real ◽  
Earth’S Atmosphere ◽  
Significant Difference ◽  
Impact Area ◽  
Earth's Atmosphere ◽  
The Impact

Aims. The complex dynamics of bodies, originating from the interplanetary matter and passing through Earth’s atmosphere, defines their further position, velocity, and final location on Earth’s surface in the form of meteorites. One of the important factors that affect the movement of a body in the atmosphere is its shape and orientation. Our goal is to model the interaction of real shape meteoroids with Earth’s atmosphere and compare the results with the standard spherical body approach. Methods. In the simulation, we use 3D models of fragments of the Košice meteorite with different sizes and shapes. Using a 3D model of fragments, we consider the real shape of the body to define its resistance properties during atmospheric transition more specifically. The simulation is performed using virtual wind tunnel in the MicroCFD (Computational Fluid Dynamics) software to obtain more realistic drag coefficients and using the µ(m)-Trajectory software to model the particle trajectory in the atmosphere including the wind profile. The final outputs from these programs are the drag coefficient as a function of the altitude and the particle orientation. Using these parameters we get the more realistic body trajectory and the impact area coordinates. Comparison of the results for real and spherical model meteorite impact location is discussed. Results. Simulation showed significant differences in trajectory and the impact area for the different real body orientations compared to the spherically symmetric body. Also, an important result is a difference in the impact area of the real body with a specific orientation without rotation and the body with considered rotation. The significant difference between the modeled impact of a real shape body and its real place of finding compared to a spherically symmetric body indicates the importance of the method used.

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