Prediction of soil characteristics over large areas is desirable for environmental modeling. In arid environments, soil characteristics often show strong ecological connectivity with natural vegetation, specifically biomass and/or canopy cover, suggesting that the soil characteristics may be predicted from vegetation data. The objective of this study was to predict soil infiltration characteris...

This research was conducted to develop infiltration model and evaluate Omo Kuraz III furrow irrigation scheme performance using three common parameters namely: application efficiency, water storage efficiency distribution uniformity.

annual fires might change many soil physical properties in semi steppe rangeland.the objective of this study was to investigate the impact of fire on soil physical properties and soil water infiltration parameters in semi-steppe rangeland of karsanak region in chaharmahal and bakhtiari province. therefore, several sites were chosen which were affected by fire at three, two and one years prior t...

In his seminal paper on the solution of infiltration equation, Philip (1969), https://doi.org/10.1016/b978-1-4831-9936-8.50010-6 proposed a gravity time, tgrav, to estimate practical convergence time and domain validity infinite series expansion, TSE, for describing transient state. The parameter tgrav refers point in where is dominated equally by capillarity as derived from first two (dominant...

The movement of water into the soil under specific conditions is called infiltration. The study of infiltration is one of the most important necessities in irrigation and drainage engineering. Two popular infiltration models called Kostiakov and Modified Kostiakov, which are largely used in the fields, are considered for analysis. The problem is modeled as a least sum of squares of the differen...

The farmland in Yinchuan is composed of sierozem soil, which characterized by high sand content and low organic matter content, resulting poor water-holding capacity weak soil structure. Humic acid a natural polymer amendment. It critical to study how humic affects water infiltration at the microlevel. A one-dimensional vertical experiment was conducted explore adding different amounts (0, 1%, ...

Conglomeratic alluvial sediments (sand–gravel–cobbles) are common in fluvial, periglacial, and tectonically active regions but have received little attention with respect to unsaturated flow, specifically moisture–tension–conductivity relationships, due to difficulty in making measurements in the field or laboratory and lack of agricultural value. We used a field-scale infiltration experiment, ...

OBJECTIVE The frequency of bone marrow infiltration by Hodgkin lymphoma is low and varies from 3 to 18%. Hence there exists a dilemma whether bone marrow staging should be done only in the high risk cases. This study aims to study the clinicopathological features and the histomorphology of bone marrow infiltration by Hodgkin Lymphoma. MATERIAL AND METHOD Bone marrow aspirates and biopsies fro...

flood spreading stations were constructed in iran with different objectives such as groundwater recharge and vegetation recovery. accumulation of sediment can be a major problem in flood spreading stations. according to generally accepted theories, floods and salt pollution can reduce gradually the infiltration rate. in order to investigate this issue, 13 flood spreading stations were selected ...