Shrub stage - xerarch, Biology

Assignment Help:

Shrub Stage - Xerarch

Sufficient soil is formed in the herbs stage, for supporting the woody plants or the shrubs. They migrate with the help of seeds or rhizomes from the adjacent areas. Examples are: species of Rhus and Physocarpus. The shrubs soon develop into dense vegetation. The habitat is considerably modified. The herbs are shaded by the overgrowing shrubs. They no longer find it possible to thrive in such a situation and are, therefore, completely replaced by the shrubs.

The shrubby vegetation adds a lot of organic matter to the soil, through leaves and other plant parts. The soil is thus enriched with considerable amount of humus. The huge mass of roots of the shrubs corrodes the rocks. The enriched soil attains greater capacity for holding water. The soil is shaded, and, therefore, evaporation of water is considerably reduced. The humidity is increased over such areas. All these favour the growth of seedlings of trees which start invading the area.


Related Discussions:- Shrub stage - xerarch

Synthetic petrol, Petrol or gasoline can be synthesized by following three ...

Petrol or gasoline can be synthesized by following three methods: 1.      Polymerisation 2.      Fischer - tropsch method 3.      Bergius process polymerisation In

Define caution for the use of pipettes - food microbiology, Caution for the...

Caution for the use of Pipettes - Food Microbiology? (1) Never do pipetting with mouth. (2) For culturing, sterilized pipettes should be used. (3) Never keep pipettes on

Financing of healthcare - constraints, Financing of Healthcare - Constraint...

Financing of Healthcare - Constraints One of the major constraints to improve the healthcare delivery system in developing countries is weak public sector management. These ec

Which glands is affected by the hormones, Which pair of glands is affected ...

Which pair of glands is affected by the hormones from the posterior pituitary? A) thyroid, ovaries B) adrenal cortex, liver C) testes, mammary glands D) kidneys, uterus

Sweating - temperature relations in animals, Normal 0 false f...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Why degree of dispersion of protein solution is decreased, Degree of disper...

Degree of dispersion of protein solution is decreased. It is decreased because of certain reasons:- Association: refers to changes occuring at subunit or molecular leve

What is a genetic family tree, What is a genetic family tree? Genetic f...

What is a genetic family tree? Genetic family tree is a schematic family tree that shows the biological inheritance of some trait by successive generations. Genetic family t

Photosynthesis, The neurotransmitter found in insects that is similar to do...

The neurotransmitter found in insects that is similar to dopamine is?

What are the chemical bonds of the dna molecule, Q. What are the chemical b...

Q. What are the chemical bonds of the DNA molecule that are broken for replication process to occur? During the DNA replication process, hydrogen bonds between the nitrogen- co

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd