What is a hectare furrow slice of soil?
What is a hectare furrow slice of soil?
Hectare-furrow slice (HFS) is the assumed mass of a hectare to depth of 15 cm, 2200 Mg (metric ton, 1000 kg. Acre-furrow slice (AFS) is the assumed mass of an acre to depth of 6 in, 1000 tons (2000 lbs).
How many tons is an acre of dirt?
An acre furrow slice is the volume or soil in an acre of topsoil 6-7 inches deep. The estimated average weight of soil in an acre furrow slice is 2,000,000 lbs (1,000 tons).
What is the weight of 1 hectare soil in KG?
2 million kgs
How do you convert kg to hectares?
4536 kg/lb = 5,080 kg). Because a hectare is equal to 2.471 acres, it means that 200 bu/ac is equal to about 12,553 kg/ha (5,080 kg/ac x 2.471 ac/ha = 12,553 kg/ha). This translates into 126 quintals per hectare and 12.55 metric tons per hectare.
What is bulk density formula?
Bulk density (g/cm3) = Dry soil weight (g) / Soil volume (cm3) Bulk density is usually expressed in megagrams per cubic metre (Mg/m3) but the numerically equivalent units of g/cm3 and t/m3 are also used (1 Mg/m3 = 1 g/cm3 = 1 t/m3) (Cresswell and Hamilton, 2002).
What is bulk unit weight?
Bulk unit weight is a measure of the amount of solid particles plus water per unit volume. Saturated unit weight is equal to the bulk density when the total voids is filled up with water.
What is void ratio formula?
The void ratio is the ratio of the volume of voids (open spaces, i.e. air and water) in a soil to volume of solids. Where: e = Void Ratio. Vv = Volume of voids (m3 or ft3) Vs = Volume of solids (m3 or ft3)
What is bulk density a good indicator of?
Bulk density is an indicator of soil compaction. It is calculated as the dry weight of soil divided by its volume. This volume includes the volume of soil particles and the volume of pores among soil particles. Bulk density is typically expressed in g/cm3.
Why Bulk density is smaller than particle density?
Particle density is the volumetric mass of the solid soil. It differs from bulk density because the volume used does not include pore spaces. Particle density represents the average density of all the minerals composing the soil.
What fills soil pores?
The volume of soil voids that can be filled by water and/or air; inversely related to bulk density. Porosity is also known as “pore space.” The weight of an individual soil particle per unit volume.
How do you find bulk density?
The bulk density of a powder is determined by measuring the volume of a known mass of powder sample, that may have been passed through a sieve into a graduated cylinder (Method 1), or by measuring the mass of a known volume of powder that has been passed through a volumeter into a cup (Method 2) or a measuring vessel ( …
How do you increase bulk density?
A powder with a wide distribution of particle sizes will have a higher bulk density than a powder with a narrower distribution of particle sizes. Increasing feed solids generally increases bulk density. Feed aeration decreases bulk density. Feed suspensions give higher bulk densities than feed solutions.
How do you calculate unit weight in bulk?
Bulk Unit Weight / Moist Unit Weight
- γ=(G+Se)γw1+e.
- γ=(G+Gw)γw1+e.
- γd=Gγw1+e.
- γsat=(G+e)γw1+e.
- γ′=(G−1)γw1+e.
How do I calculate unit weight?
Unit weight is also known by the name specific weight. Unit weight of the soil is the total weight of the soil divided by total volume. Total weight of soil also includes weight of water. Total volume occupied includes the volume of water as well as the volume of air along with the soil volume.
How do you find unit weight?
Simply divided the total weight by the total volume to find the weight per single unit of volume.
What is effective unit weight?
The unit weight of a soil that, when multiplied by the height of the overlying column of soil, yields the effective pressure due to the weight of the overburden.
What is G in soil mechanics?
In soil mechanics, the specific gravity of soil solids (which is often referred to as the specific gravity of soil) is an important parameter for calculation of the weight-volume relationship. Thus specific gravity, Gs, is defined as. Gs = unit weight (or density) of soil solids only / unit weight (or density) or water.
How is effective stress calculated?
The effective stress s´ is related to total stress and pore pressure by s´ = s – u. The adjective ‘effective’ is particularly apt, because it is effective stress that is effective in causing important changes: changes in strength, changes in volume, changes in shape.
What is water unit weight?
From Wikipedia, the free encyclopedia. The specific weight, also known as the unit weight, is the weight per unit volume of a material. A commonly used value is the specific weight of water on Earth at 4°C, which is 9.807 kN/m3 or 62.43 lbf/ft3.
How do you work out the weight of water?
Calculating the weight of water
- Convert your 1L figure to mL. Volume = 1 × 1000 = 1000 mL.
- Weight in grams = volume × density. 1000 × 0.99802 = 998.02g.
- Convert grams to pounds. 998.02 × 0.0022 = 2.1956.
How do you calculate water weight in a tank?
To estimate the weight of the water in your tank, multiply the volume in gallons by the weight per gallon for the type of water.
How much does a 60 gallon aquarium weigh full of water?
Common Fish Tank Sizes and Characteristics
| Tank Size | Outside Dimensions in Inches (L x W x H) | Weight Empty and Full (lbs) |
|---|---|---|
| 55 Gallon | 48 1/4 x 12 3/4 x 21 | 625 |
| 60 Gallon | 48 3/8 x 12 7/8 x 23 7/8 | 710 |
| 80 X-High | 48 7/8 x 14 x 30 3/4 | 990 |
| 75 Gallon | 48 1/2 x 18 1/2 x 21 3/8 | 850 |