How many millimetres (equivalent depth) of water are
contained in a soil profile 1 metre deep if the mass water
content of the upper 400 mm depth is 15% and that of the
lower 600 mm is 20%. The bulk density in the upper layer is
1300 kg m- and in the lower layer is 1500 kg m-?. Assume Pw
= 1000 kg m’How much water does the soil contain (in
cubic
metres) per 1.5 hectares of land?
ri

Answers

Answer 1

The equivalent depth of water in the soil is 180 mm of water and the volumetric water content of soil is 3870 cubic meter/ 1.5 hectare of soil.

What is the formula to calculate the equivalent depth of water in a soil?

The equivalent depth of water in a soil is calculated using the formula below:

equivalent depth of water = water content × depth of soil

The depth of soil profile 1 = 400 mm

The depth of soil profile 2 = 600 mm

Equivalent depth of water in the soil = 15% × 400 mm + 20% × 600 mm

Equivalent depth of water in the soil = 60 mm + 120 mm = 180 mm

Therefore, the equivalent depth of water in the soil is 1800 mm of water.

The volumetric water content of the soil is calculated using the formula below:

Volumetric water content = water content × bulk density of soil/density of water × height of soil

Height of soil profile 1 = 0.4 m

Height of soil profile 2 = 0.6 m

Volumetric water content of soil profile 1 = 15% × 1300/1000 × 0.4 m = 0.078 cubic meter/square metre of soil

Volumetric water content of soil profile 2 = 20% × 1500/1000 × 0.6 m = 0.18 cubic meter/square metre of soil

Sum of volumetric water content of soil = 0.078 + 0.18 = 0.258 cubic meter/square metre of soil.

1 hectare = 10000 square metre

Thus, 1.5 hectares = 15000 square metre

Volumetric water content of soil = 0.258 × 15000 cubic meter/ 1.5 hectare of soil

Volumetric water content of soil = 3870 cubic meter/ 1.5 hectare of soil

Thus, the equivalent depth of water in the soil is 180 mm of water and the volumetric water content of soil is 3870 cubic meter/ 1.5 hectare of soil.

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Related Questions

Which of these is a reason why there are more photosynthetic plants in an ecosystem than mammals
that feed on them?
A. Mammals are on the same trophic level as photosynthetic plants.
B. Plants convert all of their energy into a form that is unusable to mammals.
C. Mammals provide only 10% of their energy to plants.
D. Plants require less energy per organism than the mammals that feed on them.

Answers

Answer:

D

Explanation:

Plants require less energy per organism than the mammals that feed on themHence, since less energy is required per photosynthetic plant, more of them are present in an ecosystem
D ^^ i agree with them

5) According to the visual, which three continents, as of 2004, are the largest consumers or energy per capita?
A) Europe, Australia, Asia
B) Europe, Africa, Australia
C;Asia, Europe, North America
D) North America, Europe, Australia

Answers

Answer:

the anwer is etiehr c or d

Explanation:

Answer:

D) North America, Europe, Australia

Explanation:

One species of owl feeds only
during the day and another
species feeds only at night.
What type of reproductive
isolation is occurring between the
two owl species?
A. photosynthetic isolation
B. gametic isolation
C. temporal isolation

Answers

Answer: C

Explanation:

Temporal Isolation is the type of reproductive isolation is occurring between the two owl species. So, the correct option is (C).

What is Temporal isolation?

Temporal isolation is defined as the ability of a set of processes that run on the same system to run without guesswork with respect to their temporal constraints between each other.

Temporal isolation occurs when two or more species breed separately For example, two species of owls live in the same rain forest. each species is different feeding habits such as one species feeding during the day and the other at night.

Thus, Temporal Isolation is the type of reproductive isolation is occurring between the two owl species. So, the correct option is (C).

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Any one tell me what is this

Answers

Answer: look honestly I am not sure , it is the reptile but if you want a name so it is a lizard . *(lizard)

Explanation: characteristics are that it has a short neck , flexible skull , movable eyelids and a long tail . These characteristics were in the picture so probably it is a lizard . Hope my answer is correct . Please give brainliest .

Answer:

Lizard

Explanation:

It is class reptilia

I give out an egg

In the above diagram of an animal cell, what is the function of organelle 3?

Answers

A ribosome is a cellular particle made of RNA and protein that serves as the site for protein synthesis in the cell. The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.

which of the following describes a hypertonmic solution

Answers

Answer:   A

Explanation:

i looked it up and it said A

What energy-rich substance is produced by green plants
during photosynthesis?

Answers

Answer: Yes, the stored energy is sugar, but the specific name for sugar in this context would be glucose which is the form of sugar for plants.

Hope this helps!

how are tumor cells different from normal cells? ​

Answers

Answer:

Normal cells follow a typical cycle: They grow, divide and die. Cancer cells, on the other hand, don't follow this cycle. Instead of dying, they multiply and continue to reproduce other abnormal cells. These cells can invade body parts, such as the breast, liver, lungs and pancreas.

Explanation:Normal cells follow a typical cycle: They grow, divide and die. Cancer cells, on the other hand, don't follow this cycle. Instead of dying, they multiply and continue to reproduce other abnormal cells. These cells can invade body parts, such as the breast, liver, lungs and pancreas.

Do you get your electricity from a utility company or do you have solar/wind/geothermal devices for your electricity??

Answers

Answer:

get mine electricity from  an utility company

What trends do you see in the
organisms of the ecosystem if
you decrease CO2? *

Answers

Answer:

When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.

Explanation:

Which type of bank account typically offers the least (if any) interest?
a)Checking account
b)Savings account
c)Money market account
d)None of the above.​

Answers

Answer:  The answer is Checking account.

Explanation:

What do eukaryotic cells have to prokaryotic cells do not

Answers

Answer:

Cell walls

Explanation:

Eukaryotic cells have cell walls which make the cell rigid and help keep its shape. An example of a eukaryotic cell is a plant cell. Prokaryotic cells do not have cell walls, meaning that the cells are not able to keep a shape. An example of a prokaryotic cell is an animal cell.

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The heart is considered to be a part of which of the two systems listed below?

Answers

Answer:

The heart is at the centre of your circulatory system, which is a network of blood vessels that delivers blood to every part of your body. Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly.

Explanation:

Which of these is NOT a form of pollution caused by humans?
A. light
B. chemical contaminants
C. volcanic activity
D. noise

Answers

It's volcanic activity.

Explanation:

Volcanic Activity

what directs light rays into the eye​

Answers

Answer:The cornea

Explanation:The cornea directs light rays into the eye and helps focus them on the light-sensitive retina at the back of the eye, providing sharp, clear vision.

Answer:

Lens

Explanation:

Lens refract light rays on to the retina

Which of the following is true about highly meets rating

Answers

But Where is the following

Does apoptosis cause cancer?

Answers

Answer:

yes it can, its's a much more complicated than we would like to think

What is a result of overhunting plant and animal species?

A. Species can become extinct
B. Species can overpopulate
C. Species reproduce faster than they normally would
D. Humans pollute natural habitats​

Answers

I believe it’s A, hope this helps!!


In ____ the two chromosomes are always identical

Answers

Answer: Sister Chromatids

Explanation:

Because each chromosome was duplicated during the S phase, it now consists of two identical copies called sister chromatids that are attached at a common center point called the centromere.

I hope this helped! :)

True or false Some plants have underground leaves that are often mistaken for roots

Answers

Some plants such as Philcoxia minensis have underground leaves that are often mistaken for roots.

Which plants have underground leaves?

Some plants such as Philcoxia minensis have both leaves on stems above ground as well as underground leaves.

The underground leaves are able to capture sunlight that passes through the sandy soil in which these plants grow.

Therefore, it is true that some plants have underground leaves that are often mistaken for roots.

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Two degrees Celsius is equal to how many degrees Fahrenheit

Answers

Explanation:

°F = 1.8°C + 32

°F = 1.8(2) + 32

°F = 3.6 + 32 = 35.6

12. According to the law of conservation of
energy, in theory, a bouncy Sall should
never stop bouncing. However, we know
that it eventually stops. Where does the
energy go.
A. Some gets converted into sound energy and escapes
into the surroundings.
B. Some gets converted into thermal energy and escapes
into the surroundings.
C. Both A and B

Answers

some gets converted into sound energy and escapes into the surroundings.

hope it helps..!!!

How deep below Earth's surface do rocka melt?
O A. 500 km
O B. 1000 km
O C. 50 m
O D. 50 km

Answers

It’s D.50km your welcome

Prokaryotic DNA is:
(Fill in the letters, this is for a crossword)

_ e _ _ _ _ _ _ _

Answers

Answer:

Prokaryotic DNA can be found in the cytoplasm whereas eukaryotic DNA is found in the nucleus, enclosed by the nuclear membrane.

Explanation:

What might be an example of a neutral relationship in this ecosystems

Answers

The interaction is seemingly neutral for one of the organisms. For example, a barnacle attached to a whale can travel thousands of miles collecting and filtering food from the moving water. The whale doesn't seem to be affected by the little hitchhikers.

What phase(s) of cellular respiration could provide the organism with water?

Answers

Water is formed when hydrogen and oxygen react to form H2O during the electron transport chain, which is the final stage of cellular respiration

The two polymer strands of a DNA molecule are held together by _____________ bonds between the _____________ of the nucleotides.

Answers

Answer:

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Explanation:

please consider as brainlest

The two polymer strands of a DNA molecule are held together by hydrogen  bonds between the pairs of bases of the nucleotides.

What is mean by DNA molecule?Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder  a shape known as a double helix.

The two polymer strands of a DNA molecule are held together by hydrogen  bonds between the pairs of bases of the nucleotides.

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In what respect is a mycelium and a fruiting body similar?

Answers

Answer:

Both are made of hyphae.

What is NOT an example of a way in which the release of greenhouse gases in one ecosystem can
affect bird migration in another ecosystem.
A. Birds may change the time of year in which they migrate.
B. Birds may change the location of their migration if the temperature ranges at either end of their migration
route are no longer suitable.
C. Birds may not migrate at all if they can find an area in which the temperature range is more suitable
throughout the year.
D. Birds generally migrate to the sources of pollution

Answers

Answer:

D

Explanation:

Things birds may do due to the release of greenhouse gases in an ecosystem :

Change the time of the year in which they migrateChange location if migration if temperatures at location to which they usually migrate are not suitableNot migrate at all if they can find an area with suitable temperatureMigrate away from the source of pollution

Hence, D is the incorrect statement as birds do not migrate to the sources of pollution.

1) A simplified nitrogen cycle in the ocean is shown here. The movement of nitrogen can impact algae growth, particularly the phytoplankton populations shown here. Large marine mammals, like whales,
move to the surface of the ocean and release nitrogenous wastes in the form of ammonia. Analyze the nitrogen cycle and select the logical explanation on the impact of the phytoplankton populations
A) Phytoplankton populations will increase as nitrogen availability increases at the surface.
B) Phytoplankton populations will decrease because the ammonia is toxic to the phytoplankton,
C) Phytoplankton populations will decrease as nitrogen influx will cause the phytoplankton to be outcompeted by the bacteria.
D) Phytoplankton populations will not increase nor decrease because ammonia is not a usable form of nitrogen for the phytoplankton
The Practice

Answers

Answer:A) Phytoplankton populations will increase as nitrogen availability increases at the surface.

Phytoplankton populations will increase as nitrogen availability increases at the surface. So, the correct option is (A).

What is Nitrogen cycle?

The nitrogen cycle is defined as the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates in atmospheric, terrestrial and marine ecosystems where nitrogen is transformed through both biological and physical processes.

The steps which are involved in this process:

Nitrogen fixation.Assimilation.Ammonification.Nitrification.Denitrification.Dissimilatory nitrate reduction to ammonium.Anaerobic ammonia oxidation.

It is a repeating cycle of processes during which nitrogen moves through both living and non-living things such as the atmosphere, soil, water, plants, animals and bacteria. In order to move to different parts of the cycle, nitrogen must change form. In this cycle , the phytoplankton increases the nitrogen availability.

Thus, Phytoplankton populations will increase as nitrogen availability increases at the surface. So, the correct option is (A).

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