Artificial culture of biological soil crusts and its effects on overland flow and infiltration under simulated rainfall

2011 ◽  
Vol 48 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Bo Xiao ◽  
Qing-hai Wang ◽  
Yun-ge Zhao ◽  
Ming-an Shao
Keyword(s):  
Overland Flow ◽  
Biological Soil Crusts ◽  
Simulated Rainfall ◽  
Artificial Culture ◽  
Soil Crusts

Responses of soil respiration of moss-dominated biological soil crusts to simulated rainfall on loess and aeolian soils in the Loess Plateau of China

2017 ◽  
Vol 37 (11) ◽  
Author(s):  
肖波 XIAO Bo ◽  
郭成久 GUO Chengjiu ◽  
赵东阳 ZHAO Dongyang ◽  
胡克林 HU Kelin ◽  
贾玉华 JIA Yuhua
Keyword(s):  
Soil Respiration ◽  
Loess Plateau ◽  
Biological Soil Crusts ◽  
Simulated Rainfall ◽  
The Loess Plateau ◽  
Soil Crusts

scholarly journals Quantifying the surface covering, binding and bonding effects of biological soil crusts on soil detachment by overland flow

2017 ◽  
Vol 42 (15) ◽  
pp. 2640-2648 ◽  
Author(s):  
Fa Liu ◽  
Guang-Hui Zhang ◽  
Fubao Sun ◽  
Hao Wang ◽  
Long Sun
Keyword(s):  
Overland Flow ◽  
Biological Soil Crusts ◽  
Soil Crusts ◽  
Surface Covering

Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes

2013 ◽  
Vol 5 (6) ◽  
pp. 739
Author(s):  
Wu YongSheng ◽  
Erdun Hasi ◽  
Yin RuiPing ◽  
Zhang Xin ◽  
Ren Jie ◽  
...  
Keyword(s):  
Sand Dunes ◽  
Biological Soil Crusts ◽  
Soil Crusts

scholarly journals Erosion and Subsequent Transport State of Escherichia coli from Cowpats

2005 ◽  
Vol 71 (6) ◽  
pp. 2875-2879 ◽  
Author(s):  
Richard William Muirhead ◽  
Robert Peter Collins ◽  
Philip James Bremer
Keyword(s):  
Escherichia Coli ◽  
Surface Waters ◽  
Overland Flow ◽  
Single Cells ◽  
Rainfall Event ◽  
Buffer Strips ◽  
Simulated Rainfall ◽  
E Coli ◽  
Unattached Fraction ◽  
Over Time

ABSTRACT Processes by which fecal bacteria enter overland flow and their transportation state to surface waters are poorly understood, making the effectiveness of measures designed to intercept this pathway, such as vegetated buffer strips, difficult to predict. Freshly made and aged (up to 30 days) cowpats were exposed to simulated rainfall, and samples of the cowpat material and runoff were collected. Escherichia coli in the runoff samples were separated into attached (to particles) and unattached fractions, and the unattached fraction was analyzed to determine if the cells were clumped. Within cowpats, E. coli grew for 6 to 14 days, rather than following a typical logarithmic die-off curve. E. coli numbers in the runoff correlated with numbers inside the cowpat. Most of the E. coli organisms eroded from the cowpats were transported as single cells, and only a small percentage (about 8%) attached to particles. The erosion of E. coli from cowpats and the state in which the cells were transported did not vary with time within a single rainfall event or over time as the cowpats aged and dried out. These findings indicate that cowpats can remain a significant source of E. coli in overland flow for more than 30 days. As well, most of the E. coli organisms eroded from cowpats will occur as readily transportable single cells.

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