Time Stability of Soil Water Content
نویسندگان
چکیده
منابع مشابه
ارزیابی کیفیت خاک در کاربری‌های مختلف زمین با استفاده از روش‌های آماری چند متغیره
The aim of the study was to investigate the effects of land use on soil quality parameters using multivariate statistical analysis. Soil samples (0-25 and 25-50 cm depths) were taken from three land uses in forest area of Marivan including forest, rangeland, and cultivated land. Soil characteristics of pH, EC, sand, silt, clay and CaCO3 content, water-stable aggregates and their organic carbon ...
متن کاملارزیابی پایداری ساختمان خاک به‌روش الک تر در برخی از مکان‌های مرتعی استان اصفهان
Soil aggregate stability is considered as a key indicator of soil quality and health assessments in rangelands. Many factors and properties such as soil texture, organic carbon, calcium carbonate, sodium adsorption ratio, and electrical conductivity might affect soil aggregate stability. The effects of these factors on aggregate stability of 71 soil samples collected from 4 rangeland sites (2 i...
متن کاملتغییرپذیری عناصر غذایی خاک و پایداری خاکدانه در زمان های مختلف پس از آتش سوزی در جنگل های زاگرس (مطالعه موردی: جنگل های پاوه)
The changes in soil nutrients and aggregate stability either in short-term or in long-term after fire is very important in forest ecosystems due to their key role in plants growth and preventing soil erosion. In the present investigation the short, medium, and long-term effect of fire was surveyed on these properties for the first time in Iran. For this purpose a plot of Zagros forests was sele...
متن کاملAssessing Relation of Soil Hydrophobicity and Soil Water Content and Determining Threshold Moisture of Organic Soil Samples
Soil water content is the most effective factor associated with the hydrophobic and hydrophilic changes in a soil. Water repellency in soils, is not a permanent feature; it can be reached in the dry season and reduced or eliminated in the wet season It can be said that in terms of moisture, there is a critical region that is defined as the threshold moisture content, where in lower moisture, th...
متن کاملInfluence of Curing Time and Water Content on Unconfined Compressive Strength of Sand Stabilized Using Epoxy Resin
Improvement and stabilization of soils are widely used to improve the physical and mechanical properties of sandy soils. Despite the abundance of researchers that have been conducted on this topic to date, most of them have focused on dry soil. The effects of the existing water in the soil and different curing durations (curing environment) have not been investigated. In this study, different p...
متن کاملNumerical methods in soil hydrology: TDR waveform analysis and water vapor diode simulation
Soil water content impacts all soil physical, chemical and biological properties. Soil water movement in shallow soil layers has critical importance for plant water use, foundation stability, energy transfer and chemical diffusion. Numerical analysis is one way to study soil water. New numerical methods are presented in this thesis to determine soil water content from time domain reflectometry ...
متن کامل