69. A Comparison of Methods to Measure Aerosol Surface-Area

2004 ◽  
Author(s):  
A. Maynard ◽  
B. Ku ◽  
P. Andresen ◽  
G. Ramachandran ◽  
P. Pai ◽  
...  
Keyword(s):  
Surface Area ◽  
Comparison Of Methods

scholarly journals A comparison of methods to estimate harvest-induced damage to the soil using the example of a beech timber stand

2014 ◽  
Vol 75 (3) ◽  
pp. 245-251
Author(s):  
Dariusz Kulak
Keyword(s):  
Surface Area ◽  
Soil Condition ◽  
Visual Assessment ◽  
Field Trials ◽  
Comparison Of Methods ◽  
Farm Tractor ◽  
Damage Indicators ◽  
Soil Disturbances ◽  
Different Order ◽  
Different Levels

Abstract The study determines the extent of soil disturbances occurring during mechanised harvesting operations in a beech timber stand and investigates whether applying different research methods can be used to classify, in a comparable way, forest areas with different levels of soil damage. In the analysed stand, felling and on-side processing were conducted with chainsaws, while extraction - using an farm tractor. After the completion of logging operations, visible soil disturbances on each sample plot were measured, including surface area, volume and depth, and the value of five most common indicators of soil damage was calculated. The share of disturbed surface area, the volume of soil disturbances and different soil damage indicators allowed sample plots to be arranged in the same way according to increasing levels of soil damage occurring during harvesting. A different order was observed only in relation to the depth of the ruts formed. The similarity of the applied measures and classifications of soil disturbances indicates that all of the methods can be applied to make simple comparisons of the degree of soil damage. Because field trials are easy to perform, soil damage indicators based on a visual assessment of soil condition, without the need to take measurements, are worth recommending at first. A fuller picture of the level and nature of detected soil damage, however, can be obtained by taking into account the depth of the disturbance.

Comparison of Methods for Determining Specific-surface Area of Fine-grained Soils

2007 ◽  
Vol 26 (2) ◽  
pp. 121-132 ◽  
Author(s):  
D. N. Arnepalli ◽  
S. Shanthakumar ◽  
B. Hanumantha Rao ◽  
D. N. Singh
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Comparison Of Methods ◽  
Fine Grained

A comparison of methods used to characterize the soil specific surface area of clays

2013 ◽  
Vol 83-84 ◽  
pp. 144-152 ◽  
Author(s):  
Matej Maček ◽  
Alenka Mauko ◽  
Ana Mladenovič ◽  
Bojan Majes ◽  
Ana Petkovšek
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Comparison Of Methods
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