نتایج جستجو برای: infiltrometer

تعداد نتایج: 142  

Use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems isn’t an accurate approach because the real conditions of infiltration under center pivot sprinklers is different from what happens in the double ring. In this study the infiltration parameters were evaluated in real conditions of a center pivot system. For this purpose a single ring...

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Infiltration is the process of water penetration from the ground surface into the soil and is an important process in the hydrological cycle by which surface runoff and groundwater recharge can be linked. Over the years, the importance of the infiltration process resulted in the development of several simplified analytical models for predicting infiltration. These infiltration models range from...

2005
Sarah A. Lewis Joan Q. Wu Peter R. Robichaud

An important element of evaluating a large wildfire is to assess its effects on the soil in order to predict the potential watershed response. After the 55 000 ha Hayman Fire on the Colorado Front Range, 24 soil and vegetation variables were measured to determine the key variables that could be used for a rapid field assessment of burn severity. The percentage of exposed mineral soil and litter...

Journal: :IOP conference series 2023

Abstract The land load in the Air Dingin Sub-watershed is increasing due to relocation of Padang City administrative center district. Subsequently, this not only reduces catchment area but also increases surface runoff, because open green space, which originally served as a area, has been converted into settlements. A random measurement infiltration rate with double-ring infiltrometer was used ...

Journal: :Forests 2021

The paper deals with measurements of water infiltration carried out on a well-developed forest floor formed by needle-leaf litter Norway spruce. Three field methods (tension disk permeameter, single-ring infiltrometer and Guelph permeameter) were used to determine the soil hydraulic conductivity. results strongly influenced repellency at interface between O- A-horizons. This was severely repell...

Journal: :Journal of Hydrology and Hydromechanics 2021

Abstract The determination of soil hydraulic properties is important in several environmental sciences but may be expensive and time consuming. Therefore, during the last decades, a great effort has been made to develop relatively easy, robust, inexpensive methods for characterization. In this manuscript, we reviewed discussed different infiltrometer techniques light available experimental appl...

2006
C. Fallico

After pointing out the importance of the saturated hydraulic conductivity (ks) measurements and the difficulties and uncertainties that are present, and after recalling salient aspects of three well-known measurement methods of this parameter (i.e. constant-head tension infiltrometer (TI) method, constant-head pressure infiltrom5 eter (PI) method and soil core (SC) estimates method), the result...

2012
Florencio Ingelmo José Molina José Miguel de Paz Fernando Visconti

The knowledge of the soil saturated hydraulic conductivity (Ks) is essential for irrigation management purposes and for hydrological modelling. Several attempts have been done to estimate Ks in base of a number of soil parameters. However, a reliable enough model for qualitative Ks estimation based on the expert assessment of field characteristics had not been developed up to date. Five field c...

2016
Derek M. Heeren Daniel E. Storm

Measuring infiltration at the plot scale is difficult, especially for high hydraulic conductivity soils. At the plot scale, the infiltration rate is usually calculated by comparing surface runoff to rainfall. Direct measurement of infiltration beyond the point scale is typically limited to locations where land forming (e.g., infiltration pond) has been performed or fields with basin irrigation ...

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