The vertical distribution of atmospheric H2O2: A case study

1992 ◽  
Vol 97 (D2) ◽  
pp. 2507 ◽  
Author(s):  
John D. Ray ◽  
Charles C. Van Valin ◽  
Joe F. Boatman
Keyword(s):  
Vertical Distribution ◽  
The Vertical Distribution

A case study on the vertical distribution and characteristics of aerosols using ground-based raman lidar, satellite and model over Western India

2021 ◽  
Vol 42 (17) ◽  
pp. 6421-6436
Author(s):  
Sourita Saha ◽  
Som Sharma ◽  
K. Niranjan Kumar ◽  
Prashant Kumar ◽  
Vaidehi Joshi ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Western India ◽  
Raman Lidar ◽  
The Vertical Distribution

scholarly journals Vertical distribution of epiphytic bryophytes depends on phorophyte type; a case study from windthrows in Kampinoski National Park (Central Poland)

2020 ◽  
Vol 57 ◽  
pp. 59-71
Author(s):  
Barbara Fojcik ◽  
Damian Chmura
Keyword(s):  
Vertical Distribution ◽  
National Park ◽  
Vertical Gradient ◽  
Quercus Petraea ◽  
Lower Trunk ◽  
Central Poland ◽  
Pine Trees ◽  
The Vertical Distribution ◽  
Occurrence Of Species

The vertical distribution of epiphytic bryophytes in European forests are still relatively poorly understood. The aim of the study was to analyse the diversity and vertical zonation of epiphytic mosses and liverworts on selected tree types (Quercus petraea, Betula pendula and Pinus sylvestris) within windthrow areas in the Kampinoski National Park (Central Poland). The investigations were performed in five parts of the trees: the tree base, lower trunk, upper trunk, lower crown, and upper crown. Deciduous trees have more species than pine trees (13 on Quercus and Betula, 8 on Pinus). The type of phorophyte was crucial for the differences in the species composition from the tree base to the upper crown that was observed. The highest richness of bryophytes was recorded on the tree bases, while the lowest was recorded in the upper parts of the crowns. The variability of the habitat conditions in the vertical gradient on the trunk that affected the patterns of the occurrence of species with different ecological preferences was determined using the Ellenberg indicator values. An increase in the value of the light and acidity indicators from the base of the trunk upwards and decreasing tendency in the case of moisture indicator was noted.

Wind Erosion at a Saline Playa Environment, Ebinur Lake, Xinjiang, China - A Case Study on the Source of Saline Dust Storm

2012 ◽  
Vol 260-261 ◽  
pp. 1003-1008
Author(s):  
Dong Wei Liu ◽  
Jilili Abuduwaili
Keyword(s):  
Vertical Distribution ◽  
Wind Erosion ◽  
Dust Storms ◽  
Aeolian Transport ◽  
Near Surface ◽  
Erosion Pins ◽  
Dry Lake ◽  
The Vertical Distribution ◽  
Main Factor

In many arid and semiarid lands, dry lake beds (saline playa) represent a tremendous source of unconsolidated salt-rich sediments that are available for aeolian transport. Severe salt-dust storms caused by the erosion of such landforms have become very harmful natural phenomena. Base on texture and appearance characteristic, five principal undisturbed playa surfaces for sampling to investigate the deflation rate and the vertical distribution of material abraded using a wind-tunnel experiment in this study. Two additional field deflation monitoring transect were aslo established to examine vertical deflation by wind from measurements of erosion pins at the Ebinur (dry) Lake. The results indicate that winds greater than 8 m/s is the main factor for inducing the erosion of the playa sediments. Soft salt, aeloian sediment and alluvial deposit are the main sources of the saline dust storms in Ebinur region. The near-surface vertical distribution of material abraded concentrated in 0 -10 cm height. The annual wind erosion rate ranged from 0.48 cm to 5.6 cm in the northwest portion of the lake and from 0.24 cm to 0.96 cm in the southeast portion.

Is the vertical distribution of meiofauna similar in two contrasting microhabitats? A case study of a macrotidal sandy beach

2018 ◽  
Vol 502 ◽  
pp. 39-51 ◽  
Author(s):  
T.F. Maria ◽  
M.G. Silva Filho ◽  
T.P. Souza ◽  
J. Vanaverbeke ◽  
A. Vanreusel ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Sandy Beach ◽  
The Vertical Distribution
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