How do rainfall intensity and raindrop size determine stemflow production? Quantitative evaluation from field rainfall simulation experiments

2021 ◽  
Author(s):  
Yafeng Zhang ◽  
Xinping Wang ◽  
Yanxia Pan ◽  
Rui Hu
Keyword(s):  
Quantitative Evaluation ◽  
Rainfall Intensity ◽  
Rainfall Simulation ◽  
Simulation Experiments ◽  
Raindrop Size

scholarly journals Straw mulch as a sustainable solution to decrease runoff and erosion in glyphosate-treated clementine plantations in Eastern Spain. An assessment using rainfall simulation experiments

CATENA ◽  
2019 ◽  
Vol 174 ◽  
pp. 95-103 ◽  
Author(s):  
S.D. Keesstra ◽  
J. Rodrigo-Comino ◽  
A. Novara ◽  
A. Giménez-Morera ◽  
M. Pulido ◽  
...  
Keyword(s):  
Rainfall Simulation ◽  
Simulation Experiments ◽  
Straw Mulch

Rainfall simulation experiments as a tool for process research in soil science, hydrology, and geomorphology

2021 ◽  
pp. 395-418
Author(s):  
Petr Kavka ◽  
Martin Neumann ◽  
Tomáš Dostál ◽  
David Zumr ◽  
Tomáš Laburda ◽  
...  
Keyword(s):  
Process Research ◽  
Rainfall Simulation ◽  
Soil Science ◽  
Simulation Experiments

Scale Effects of Sediment-Related Transport of Phosphorus

1993 ◽  
Vol 28 (3-5) ◽  
pp. 473-481 ◽  
Author(s):  
S. M. Bolton ◽  
T. J. Ward
Keyword(s):  
Total Phosphorus ◽  
Overland Flow ◽  
Sediment Load ◽  
Scale Effects ◽  
Sediment Concentration ◽  
Rainfall Simulation ◽  
Small Rivers ◽  
Phosphorus Transport ◽  
Simulation Experiments ◽  
Stream Type

Sediment and nutrient data from USGS gauged stream sites in New Mexico and from rainfall simulation experiments were compiled and analyzed. Above a suspended sediment concentration of about 500 mg/l, associated concentrations of total phosphorus are highest in overland flow and then progressively decrease from agricultural drains to ephemeral washes to undammed rivers. Within a stream type, sediment-related concentrations of total phosphorus typically differed between larger and smaller basins. Small rivers had higher phosphorus transport per unit of sediment load than larger rivers. Small and medium sized washes had different relationships between phosphorus and sediment than did large and very large washes.

scholarly journals Seasonal Characteristics of Disdrometer-Observed Raindrop Size Distributions and Their Applications on Radar Calibration and Erosion Mechanism in a Semi-Arid Area of China

2020 ◽  
Vol 12 (2) ◽  
pp. 262 ◽  
Author(s):  
Zongxu Xie ◽  
Hanbo Yang ◽  
Huafang Lv ◽  
Qingfang Hu
Keyword(s):  
Rainfall Intensity ◽  
Shaanxi Province ◽  
Theoretical Formula ◽  
Size Distributions ◽  
Seasonal Characteristics ◽  
Different Seasons ◽  
Raindrop Size ◽  
Radar Calibration ◽  
The Impact ◽  
Semi Arid

Raindrop size distributions (DSDs) are the microphysical characteristics of raindrop spectra. Rainfall characterization is important to: (1) provide information on extreme rate, thus, it has an impact on rainfall related hazard; (2) provide data for indirect observation, model and forecast; (3) calibrate and validate the parameters in radar reflectivity-rainfall intensity (Z-R) relationships (quantitative estimate precipitation, QPE) and the mechanism of precipitation erosivity. In this study, the one-year datasets of raindrop spectra were measured by an OTT Parsivel-2 Disdrometer placed in Yulin, Shaanxi Province, China. At the same time, four TE525MM Gauges were also used in the same location to check the disdrometer-measured rainfall data. The theoretical formula of raindrop kinetic energy-rainfall intensity (KE-R) relationships was derived based on the DSDs to characterize the impact of precipitation characteristics and environmental conditions on KE-R relationships in semi-arid areas. In addition, seasonal rainfall intensity curves observed by the disdrometer of the area with application to erosion were characterized and estimated. The results showed that after quality control (QC), the frequencies of raindrop spectra data in different seasons varied, and rainfalls with R within 0.5–5 mm/h accounted for the largest proportion of rainfalls in each season. The parameters in Z-R relationships (Z = aRb) were different for rainfall events of different seasons (a varies from 78.3–119.0, and b from 1.8–2.1), and the calculated KE-R relationships satisfied the form of power function KE = ARm, in which A and m are parameters derived from rainfall shape factor μ. The sensitivity analysis of parameter A with μ demonstrated the applicability of the KE-R formula to different precipitation processes in the Yulin area.

Rainfall simulation experiments indicate that biochar addition enhances erosion of loess‐derived soils

2019 ◽  
Vol 30 (18) ◽  
pp. 2272-2286 ◽  
Author(s):  
Fengbao Zhang ◽  
Chihua Huang ◽  
Mingyi Yang ◽  
Jiaqiong Zhang ◽  
Weiyu Shi
Keyword(s):  
Rainfall Simulation ◽  
Simulation Experiments

scholarly journals Comparative Analysis of Splash Erosion Devices for Rainfall Simulation Experiments: A Laboratory Study

Water ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1228 ◽  
Author(s):  
María Fernández-Raga ◽  
Julián Campo ◽  
Jesús Rodrigo-Comino ◽  
Saskia D. Keesstra
Keyword(s):  
Rainfall Simulation ◽  
Key Factors ◽  
Erosion Process ◽  
Rain Intensity ◽  
Significant Relation ◽  
Simulation Experiments ◽  
Rainfall Characteristics ◽  
Splash Erosion ◽  
Simulated Rain ◽  
Set Up

For the study of soil erosion it is important to set up the experiments well. In the experimental design one of the key factors is the choice of the measurement device. This is especially important when one part of the erosion process needs to be isolated, such as for splash erosion. Therefore, the main aim of this research is to list the general characteristics of the commonly used splash erosion devices and to discuss the performance, to be able to relate them, and make suggestions regarding their use. The devices we selected for this comparative comparison were: the splash cup, funnel, Morgan tray, Tübingen cup, tower, and the gutter. The devices were tested under the same conditions (rainfall characteristics, slope, and soil type) to assess their hydrological response under different intensities of simulated rainfall. All devices were installed on a sloping plot (10°) with sandy soil, and were exposed to 10 min. of simulated rain with intensities ranging from 60 to 172 mm/h to measure the splashed sediment, and to describe problems and differences among them. The results showed that the Tübingen cup was the best performing device to measure kinetic energy of the rain, but, because of its design, it is not possible to measure the detached splashed sediment under natural (field) conditions. On the other hand, the funnel device showed a significant relation with rain intensity because it loses little sediment to washing. In addition, the device is easy to use and cheap. Therefore, this device is highly recommended to estimated splash erosion. to the good performance measuring the actual splash erosion, because it loses little sediment by washing. The device is also cheap and easy to install and manage.

Nutrient losses in runoff from grassland and shrubland habitats in Southern New Mexico: I. rainfall simulation experiments

1999 ◽  
Vol 45 (1) ◽  
pp. 21-34 ◽  
Author(s):  
William H. Schlesinger ◽  
Athol D. Abrahams ◽  
Anthony J. Parsons ◽  
John Wainwright
Keyword(s):  
New Mexico ◽  
Rainfall Simulation ◽  
Nutrient Losses ◽  
Simulation Experiments
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