Effect of soil aggregate size and dicyandiamide on N2O emissions and ammonia oxidizer abundance in a grazed pasture soil

2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
A. Robinson ◽  
H. J. Di ◽  
K. C. Cameron ◽  
A. Podolyan
Keyword(s):  
Aggregate Size ◽  
Soil Aggregate ◽  
Ammonia Oxidizer ◽  
N2o Emissions ◽  
Grazed Pasture ◽  
Pasture Soil

Effect of aggregate size distribution on soil moisture, soil-gas diffusivity, and N2O emissions from a pasture soil

Geoderma ◽  
2021 ◽  
Vol 383 ◽  
pp. 114737
Author(s):  
J.R.R.N. Jayarathne ◽  
T.K.K. Chamindu Deepagoda ◽  
Timothy J. Clough ◽  
Steve Thomas ◽  
Bo Elberling ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Size Distribution ◽  
Aggregate Size ◽  
Soil Gas ◽  
N2o Emissions ◽  
Aggregate Size Distribution ◽  
Gas Diffusivity ◽  
Pasture Soil

scholarly journals The effect of soil pH and dicyandiamide (DCD) on N2O emissions and ammonia oxidiser abundance in a stimulated grazed pasture soil

2014 ◽  
Vol 14 (8) ◽  
pp. 1434-1444 ◽  
Author(s):  
Aimee Robinson ◽  
Hong Jie Di ◽  
Keith C. Cameron ◽  
Andriy Podolyan ◽  
Jizheng He
Keyword(s):  
Soil Ph ◽  
N2o Emissions ◽  
Grazed Pasture ◽  
Pasture Soil

Soil aggregate size-dependent relationships between microbial functional diversity and multifunctionality

2021 ◽  
Vol 154 ◽  
pp. 108143
Author(s):  
Shun Han ◽  
Manuel Delgado-Baquerizo ◽  
Xuesong Luo ◽  
Yurong Liu ◽  
Joy D. Van Nostrand ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Aggregate Size ◽  
Soil Aggregate ◽  
Microbial Functional Diversity ◽  
Size Dependent

Aging shapes the distribution of copper in soil aggregate size fractions

2018 ◽  
Vol 233 ◽  
pp. 569-576 ◽  
Author(s):  
Qi Li ◽  
Huihui Du ◽  
Wenli Chen ◽  
Jialong Hao ◽  
Qiaoyun Huang ◽  
...  
Keyword(s):  
Aggregate Size ◽  
Soil Aggregate ◽  
Size Fractions

scholarly journals Stimulation of r- vs. K-selected microorganisms by elevated atmospheric CO2 depends on soil aggregate size

2009 ◽  
Vol 69 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Maxim Dorodnikov ◽  
Evgenia Blagodatskaya ◽  
Sergey Blagodatsky ◽  
Andreas Fangmeier ◽  
Yakov Kuzyakov
Keyword(s):  
Aggregate Size ◽  
Soil Aggregate ◽  
Atmospheric Co2 ◽  
Elevated Atmospheric Co2 ◽  
Stimulation Of

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.

Sign in / Sign up

Export Citation Format

Share Document