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 is the endoplasmic reticulum, What is the Endoplasmic Reticulum Th...

What is the Endoplasmic Reticulum The cytoplasm of most eukaryotic cells contains a very complex network of internal membranes, called the endoplasmic reticulum, which forms ch

Bone formation, 3 main stages of bone formation, and explain the process of...

3 main stages of bone formation, and explain the process of these 3 stages.

Nephridia of worms, Normal 0 false false false EN-IN ...

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

Chronic renal failure , Chronic Renal Failure (CFW) Chronic renal fai...

Chronic Renal Failure (CFW) Chronic renal failure begins when the diseased kidney can no longer maintain the normal chemical structure of body fluids under normal conditio

What is haccp and what is its significance?, Normal 0 false ...

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

What is stem cell therapy, What is Stem cell therapy Most defects / dis...

What is Stem cell therapy Most defects / diseases treated by stem cell therapy are not genetic in origin so the therapy will have no impact on gene pool in terms of change in f

Gastrulation, Gastrulation  Gastrulation is the process through whic...

Gastrulation  Gastrulation is the process through which the presumptive areas of organ specific rudimetns present on the surface of blastula move to their specific position

Fats, definition and explanation of fats

definition and explanation of fats

What is the molecular formula of the compound, A solid compound was found t...

A solid compound was found to contain 42.11% C, 51.46%O and 6.43% H by weight. The molecular weight of the compound was 341. What is the molecular formula of the compound?

Determine the procedure of rothera test, Rothera's Test It is highly se...

Rothera's Test It is highly sensitive for both acetoacetic and acetone. Although it is one of the oldest methods still it is widely used. Procedure: - Take about 5ml of

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