نتایج جستجو برای: soil structure

تعداد نتایج: 1736028  

ژورنال: علوم آب و خاک 2014
امیری, الهام , شیرانی, حسین , محبوبی, علی اکبر , مصدقی, محمد رضا ,

In this study, the effect of soil structure under saturated and unsaturated flow conditions on nonreactive bromide (BR) transport was investigated. The soil structure treatments consisted of undisturbed columns (prismatic and granular structures), and disturbed columns (single- grain structure). A constant concentration (C0= 0.005 M) of bromide was supplied on the surface of the columns in a st...

2005
A. K. Guber

Structure is an important factor of soil functioning in ecosystems. Soil aggregate size distributions are commonly used to characterize soil structure. Relationships between density of dry soil aggregates and aggregate size present a different way to use aggregate-related information in soil structure characterization. Those relationships have been simulated assuming soils to be mass fractals. ...

Using finite element nonlinear analysis, the dynamic soil pressure on perimeter retainingwalls of structures is investigated. Nonlinear Drucker Prager failure criterion is used to model the soilbehavior in the near field. The far field soil and the middle structure are assumed to behave as linearelastic materials. The soil-wall interface behavior is modeled incorporating nonlinear interfaceelem...

2014
Zhen Zhen Haitao Liu Na Wang Liyue Guo Jie Meng Na Ding Guanglei Wu Gaoming Jiang Wen-Xiong Lin

The long-term application of excessive chemical fertilizers has resulted in the degeneration of soil quality parameters such as soil microbial biomass, communities, and nutrient content, which in turn affects crop health, productivity, and soil sustainable productivity. The objective of this study was to develop a rapid and efficient solution for rehabilitating degraded cropland soils by precis...

2004
Keijan Wu Naoise Nunan John W. Crawford Iain M. Young

et al. (1995). Finally, Yeong and Torquato (1998) use a combination of the two-point correlation function and The characterization of the soil habitat is of fundamental importhe lineal path function to characterize the pore geometance to an understanding of processes associated with sustainable management such as environmental flows, bioavailability, and soil try of a broad range of isotropic s...

Journal: :Agricultural and Food Science 1954

Journal: :Netherlands Journal of Agricultural Science 1969

Journal: :Plant, Cell & Environment 2016

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