Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The Soil Ecosystem

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:

Water and Mineral Acquisition

Water and Mineral Acquisition

Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.

Titration Calculations: Weak Acid - Strong Base

Titration Calculations: Weak Acid - Strong Base

Calculating pH for Titration Solutions: Weak Acid/Strong Base
For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be represented as:

The Water Cycle

The Water Cycle

The Earth’s hydrosphere includes all of the areas where the storage and movement of water occurs. Since water is the basis of all living processes, the cycling of water is extremely important to ecosystem dynamics.

Water: A Bronsted-Lowry Acid and Base

Water: A Bronsted-Lowry Acid and Base

The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and ionizes, protons are transferred from hydrogen fluoride molecules to water molecules, yielding hydronium ions and fluoride ions:

Titration Calculations: Strong Acid - Strong Base

Titration Calculations: Strong Acid - Strong Base

Calculating pH for Titration Solutions: Strong Acid/Strong Base
A titration is carried out for 25.00 mL of 0.100 M HCl (strong acid) with 0.100 M of a strong base NaOH. The pH at different volumes of added base solution can be calculated as follows:
(a) Titrant volume = 0 mL. The solution pH is due to the acid ionization of HCl. Because this is a strong acid, the ionization is complete and the hydronium ion molarity is 0.100 M. The pH of the solution is then:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Impact of treated wastewater sludge on soil and wheat growth characteristics in a semi-arid climate.

The Science of the total environment·2025

Same author

Treated wastewater reuse for irrigation in a semi-arid region.

The Science of the total environment·2025

Same author

Treated wastewater reuse and its impact on soil properties and potato and corn growth.

The Science of the total environment·2024

Same author

Development of WEF-P Nexus based on product-supply chain: A case study of phosphorous fertilizer industry in Morocco.

The Science of the total environment·2022

Same author

Investigating the applicability of UAVs in characterizing desert shrub biomass and developing biological indicators for the selection of suitable revegetation sites.

Journal of environmental management·2021

Same author

Toward creating an environment of cooperation between water, energy, and food stakeholders in San Antonio.

The Science of the total environment·2018

Search research articles

Related Experiment Video

Updated: Feb 5, 2026

Electrostatic Method to Remove Particulate Organic Matter from Soil

Electrostatic Method to Remove Particulate Organic Matter from Soil

Published on: February 10, 2021

Soil pedostructure-based method for calculating the soil-water holding properties.

Amjad T Assi¹, Rabi H Mohtar^1,2,3, Erik Braudeau¹

¹Department of Biological and Agricultural Engineering, Texas A&M University, College Station, TX 77843-2117, USA.

|September 1, 2018

Summary

This study introduces a new method to quantify soil water holding properties by considering soil aggregate structure. The approach accurately calculates field capacity, permanent wilting point, and available water for different soil types.

Keywords:

Available water Field capacity Pedostructure method for calculating the field capacity Permanent wilting point Soil aggregates structure Thermodynamic

More Related Videos

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools

Published on: December 16, 2022

Related Experiment Videos

Last Updated: Feb 5, 2026

Electrostatic Method to Remove Particulate Organic Matter from Soil

Electrostatic Method to Remove Particulate Organic Matter from Soil

Published on: February 10, 2021

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils

Published on: November 25, 2016

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools

Published on: December 16, 2022

Area of Science:

Soil Science
Agronomy
Environmental Science

Background:

Soil aggregate structure (pedostructure) is crucial for soil health, water, and nutrient cycling.
Current methods for quantifying soil-water holding properties do not incorporate pedostructure.
This gap limits accurate assessment of soil productivity and water use efficiency.

Purpose of the Study:

To develop and validate a thermodynamic, structure-based approach for quantifying soil-water holding properties.
To establish a methodology for calculating field capacity (FC), permanent wilting point (PWP), and available water (AW) based on pedostructure.
To integrate soil aggregate structure into the assessment of soil water dynamics.

Main Methods:

Applied a thermodynamic and soil structure-based approach.
Developed a methodology utilizing the pedostructure concept.
Tested the method on loamy fine sand and silt loam soils.

Main Results:

The developed method accurately quantified FC, PWP, and AW for both tested soil types.
Calculated values for loamy fine sand (FC=0.208 m³/m³, PWP=0.068 m³/m³, AW=0.140 m³/m³) were within FAO recommendations.
Calculated values for silt loam (FC=0.283 m³/m³, PWP=0.184 m³/m³, AW=0.071 m³/m³) also aligned with FAO ranges.

Conclusions:

The pedostructure-based approach provides a novel and accurate way to quantify soil water holding properties.
This method offers unique solutions for calculating FC and PWP, improving soil water assessment.
Integrating pedostructure enhances the understanding of soil health, productivity, and water use efficiency.