نتایج جستجو برای: infiltration depth

تعداد نتایج: 212662  

Journal: :Water 2022

Soil preferential flow is an essential process that affects the movement and relocation of soil water solutes. This study was conducted on cropland in arid semi-arid area Zhongning County, Ningxia. According to different cracks, rain intensity, rainfall duration, slope, there were three groups, 17 dye tracer experiments field. We quantified characteristics by investigating analyzing infiltratio...

ژورنال: علوم آب و خاک 2019

Quantitative description of the spatial variability of soil hydraulic characteristics is crucial for planning, management and the optimum application. Field measurement of infiltration is very expensive, time-consuming and laborious. Soil structure also important effects on water infiltration in the soil. The objectives of this study were to determine the spatial variability of water infiltrati...

Journal: :PanAfrican journal of governance and development 2023

This study focuses on the deployments of UN peacekeeping operations within intra-state armed conflicts in Africa. The statement problem and objective is to demonstrate amidst significant roles that deployed Africa have played are still playing, nonetheless growing geostrategic infiltration from hegemonic states as well other member where troops drawn constitute different mitigate conflicts. ver...

2010
R. C. Schwartz

Tillage-induced changes in soil properties are difficult to predict, yet can influence evaporation, infiltration and howwater is redistributedwithin the profile after precipitation.We evaluated the effects of sweep tillage (ST) on near surface soil water dynamics as compared with an untilled (UT) soil during a 7-month period. Plots were established in a fallow field devoid of residue under stub...

1999
OMAR RIMAWI ELIAS SALAMEH

Water quality changes taking place during the infiltration process of treated wastewater produced by the Yeast Industrial Company, Jordan, are discussed. It was found that the COD, NH4 + and P04 ~"contents decreased with depth. More than 80% of NH4 + and about 95% of P04 3 and COD were removed at a depth of 70 cm in the soil profile. However, the electrical conductivity (EC) of the infiltrated ...

2002
J. Holden T. P. Burt

Blanket peat covers the headwaters of many major European rivers. Runoff production in upland blanket peat catchments is flashy with large flood peaks and short lag times; there is minimal baseflow. Little is known about the exact processes of infiltration and runoff generation within these upland headwaters. This paper presents results from a set of rainfall simulation experiments performed on...

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...

Journal: :Applied sciences 2023

Lymph node density (LND)—the proportion of positive nodes among the total number resected nodes—has emerged as a reliable prognostic factor in solid tumors. This study aims to assess importance LND lingual squamous cell carcinoma (LSCC) and its involvement. A retrospective longitudinal with 62 patients was performed. All were diagnosed LSCC submitted for tumor resection neck dissection. Patient...

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