Modeling aggregate size distribution of eroded sediment resulting from rain-splash and raindrop impacted flow processes

2019 ◽  
Vol 34 (2) ◽  
pp. 166-177 ◽  
Author(s):  
Selen Deviren Saygin ◽  
Gunay Erpul
Keyword(s):  
Size Distribution ◽  
Aggregate Size ◽  
Aggregate Size Distribution ◽  
Flow Processes ◽  
Rain Splash

Measurement of soil dry aggregate size distribution using the laser diffraction method

2021 ◽  
Vol 211 ◽  
pp. 105023
Author(s):  
C. Polakowski ◽  
A. Sochan ◽  
M. Ryżak ◽  
M. Beczek ◽  
R. Mazur ◽  
...  
Keyword(s):  
Size Distribution ◽  
Diffraction Method ◽  
Aggregate Size ◽  
Laser Diffraction ◽  
Aggregate Size Distribution

Aggregate size distribution and stability of an oxisol under legume-based and pure grass pastures in the eastern Colombian savannas

Soil Research ◽  
1995 ◽  
Vol 33 (1) ◽  
pp. 153 ◽  
Author(s):  
AJ Gijsman ◽  
RJ Thomas
Keyword(s):  
Size Distribution ◽  
Soil Aggregates ◽  
Aggregate Stability ◽  
Aggregate Size ◽  
Soil Aggregate ◽  
Hot Water ◽  
Aggregate Size Distribution ◽  
Carbohydrate Concentration ◽  
Stability Measurement ◽  
Water Extractable

This study evaluated soil aggregate size distribution and stability of an Oxisol under improved grass-only or grass-legume pastures, established in previously native savanna. Three grass-legume combinations were included at various stocking rates. In all treatments and soil layers, soils were well aggregated, having more than 90% of their weight in macroaggregates (>250 �m). The addition of legumes to pastures did not affect the soil aggregate size distribution, although aggregates showed somewhat more stability against slaking. An increase in stocking rate negatively affected both average aggregate size and aggregate stability. Aggregates showed little or no dispersion of clay particles in any treatment. A positive correlation was found between wet aggregate stability and hot-water extractable carbohydrate concentration, supporting the hypothesis that these carbohydrates equate with plant-derived or microbial polysaccharides which glue soil aggregates together. It is suggested that determination of hot-water extractable carbohydrates may serve as a useful indicator of small differences in aggregate stability, even when these differences are not evident in the stability measurement itself.

Aggregate size distribution and associated organic C and N under different tillage systems and Ca-amendment in a degraded Ultisol

2016 ◽  
Vol 160 ◽  
pp. 42-52 ◽  
Author(s):  
Chiquinquirá Hontoria ◽  
Clara Gómez-Paccard ◽  
Ignacio Mariscal-Sancho ◽  
Marta Benito ◽  
Juana Pérez ◽  
...  
Keyword(s):  
Size Distribution ◽  
Aggregate Size ◽  
Tillage Systems ◽  
Organic C ◽  
Aggregate Size Distribution ◽  
C And N
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