نتایج جستجو برای: soil conservation service scs adjusted the kostiakovs infiltration model by adding a constant coefficient
تعداد نتایج: 20573780 فیلتر نتایج به سال:
Furrow irrigation is the most common method of surface irrigation. However, the accurate estimation of the soil water infiltration equation is the most important challenge for evaluating this method of irrigation. In this study, a fast and simple method that is named soil intake families and presented by USDA-NRCS (RSIF), evaluated for estimation of the Kostiakove-lewis infiltration equation pa...
Pembangunan konstruksi keairan seiring berjalannya waktu semakin meningkat dengan tujuan mencegah banjir, menaikkan tinggi muka air, maupun membantu manajemen sumber daya air. Tetapi pada perencanaannya butuh data debit selama 20 tahun yang sangat sulit didapat. Oleh karena itu adanya metode Hidrograf Satuan Sintetik (HSS) untuk menganalisa tanpa menggunakan curah hujan dan hanya karakteristik ...
Dielectric constant values of the samples of soil of Alwar (at various moist states) have been calculated using wave guide cell method at a single microwave frequency 9.78 GHz at 33C. The Backscattering coefficients for rough and bare soil surfaces 0 soil σ are calculated by Small Perturbation Model (SPM). Fresnal reflectivity of the soil surfaces which is an input parameter for SPM is calculat...
The purpose of this study is to assess Farmers’ attitude toward the soil conservation practices in the Kushk-Abad catchment basins in the province of Khorasan Razavi. A sample of 200 farmers was randomly selected from 1200 farmers living in Kardeh catchment basin. Data collection was done through a questionnaire that was administered in 2014. Validity of the questionnaire was confirmed by a pan...
The main scope of this research is evaluation of Soil Conservation Service Procedure in derivation of initial abstraction of precipitation in watershed scale. For this purpose Dalaki watershed which is located in south east of Iran was selected then by using hec-hms and GIS models and a number of observed rainfall runoff events some parameters like CN of watershed ,K and X of Muskingam meth...
the present paper investigates how far ideologies can be tease out in discourse by examining the employed schemata by two ideologically opposed news media, the bbc and press tv, to report syria crisis during a period of nine months in 2011. by assuming that news is not a valuefree construction of facts and drawing on micro structural approach of schema theory, for the first time in discours...
Protective Role of Biochar in Different Soil Moisture for Prevent Soil Loss in Laboratory Conditions
The using of soil conditioners to water and soil conservation is essential and also, the effect study of soil moisture on the soil conservation process and its role on changing runoff, soil erosion and sediment yield is necessary for understanding and simulating the hydrologic response of soil. Therefore, the present study was carried with the aim of investigating the effect of biochar with amo...
the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems is not 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 determined under real conditions of a center pivot system. for this purpose, a single ri...
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