Energy input in ecosystem, Biology

Assignment Help:

Energy Input in Ecosystem

Survival and functioning of ecosystem is dependent on the input of energy. Continuous availability of energy is essential for supporting diverse ecosystem processes. For any ecosystem, the ultimate source of energy is sunlight. And as you know, it enters the ecosystem through the producers. When a primary consumer (herbivore) eats a producer, and is itself eaten by secondary consumers, we can say that energy is flowing through the ecosystem. The information provided therein, would serve you as a base material for understanding this and the subsequent sections of this unit. As you already know that the amount of solar energy received at the outer boundary of earth's atmosphere is at the rate of 2cal/cm2/min. This quantity is fixed and known as solar constant. You have also learnt that about 30 per cent often sunlight reaching the earth's atmosphere is reflected back into space, about 51 per cent is absorbed as heat by ground, vegetation or water, and about 19 per cent is absorbed by the atmosphere.

Only a small fraction of sunlight, that is, about 0.b2 per tent reaching the atmosphere is used in photosynthesis. Nevertheless; it is this small fraction on which all the organisms of the ecosystem depend. The actual amount of solar flux' received at the surface of the earth is dependent on various climatic, geographic and other environmental factors. On an average the total amount of solar energy that reaches the earth's surface is about 3,400 kcal/m2/day. It varies significantly from one place to another, for example, it decreases with latitude and its input also varies during different seasons at any given location.


Related Discussions:- Energy input in ecosystem

What are some prophylactic measures against ascariasis, Q. What are some pr...

Q. What are some prophylactic measures against ascariasis? The major prophylactic measures against ascariasis are: efficient washing of vegetables and other foods base sanitary

Anatomical coordinate systems, Brain anatomical coordinate systems are the ...

Brain anatomical coordinate systems are the first potential point of confusion, as there are different ones due to the fact that research is conducted in different species where d

Explain how will you perform ward radiography?, Question 1 Explain how ...

Question 1 Explain how will you perform ward radiography? Question 2 Discuss the radiographic projections recommended for imaging the first to third cervical vertebr

Respiration, Can you define respiration in 5 oganisms

Can you define respiration in 5 oganisms

Describe dna replication in details, Describe DNA replication in details? ...

Describe DNA replication in details? Replication :  DNA replicates itself by first breaking the hydrogen bonds between the nitrogen base pairs, and "unzips" itself into two s

How different are pteridophytes from bryophytes, How different are pteridop...

How different are pteridophytes from bryophytes regarding substance transport? Pteridophytes are tracheophyte (vascular) plants, i.e., they have tissues specialized in conduct

Explain phylum cyanobacteria, Phylum Cyanobacteria Cyanobacteria  are p...

Phylum Cyanobacteria Cyanobacteria  are prokaryotes,  but  they are not  like bacteria  in  the usual  sense of  the word.  The cyanobacteria  lack chloroplasts,  and  their  l

Explain nucleoside reverse transcriptase inhibitors, Normal 0 f...

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

Genetic recombination, Mutations are the only kind of variability generatin...

Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one

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