Production efficiency - ecosystem, Biology

Assignment Help:

Production Efficiency - Ecosystem

The maximum amount of solar energy harvested by plants is about 5 per cent but the average for green plants, on the whole is only a small fraction of sunlight, i.e., 0.02 per cent reaching the atmosphere. The production efficiency that is the ratio of net primary production to gross primary production (of green plants) is on the average rather high. It varies between 40 to 85 per cent. The most efficient are those plants which have low maintenance requirement due to minimum non-photosynthetic (non green) tissues, such as in grasses, algae and phytoplankton. Algae and crops like corn have an efficiency of about 80 to 85 per cent, submerged aquatic plants 60 to 75 per cent, deciduous forests about 42 per cent. Different ecosystems have different productivities.

Productivity of ecosystems depends on a variety of factors such as sunlight, temperature, rainfall and the availability of nutrients. Those situations that provide the best circumstances for plant growth are the most productive. Warm, moist, sunny areas with high levels of nutrients in the soil are ideal. Some areas have low productivity because one of the essential factors is missing. Deserts have low productivity because water is scarce, arctic areas too have low productivity because temperature is low, and open oceans also have low productivity because nutrients are in short supply. Coral reefs and tropical rain forests have high productivity. Marshes and estuaries are-highly productive since waters running into them are rich in the nutrients and they also get enough light.


Related Discussions:- Production efficiency - ecosystem

What is infra-diaphragmatic type of tapvc, What is Infra-diaphragmatic Type...

What is Infra-diaphragmatic Type of TAPVC? Initial stages of operation are the same as for supracardiac type of TAPVC. The heart is lifted out of the pericardial cavity and c

Define central nervous system, Q. Define Central nervous system? The ne...

Q. Define Central nervous system? The nervous system begins as a simple tube during embryonic development (then anterior part expands and also ventricles are formed).  Foreb

What is a population, Q. What is a population? In the Biology a populat...

Q. What is a population? In the Biology a population is a set of individuals of the same species living in a given place and in a given time.

Neurological disorders due to imbalanced nutritional intake, Define Neurolo...

Define Neurological disorders arising due to imbalanced nutritional intake (deficiency or excess)? Common examples are the neurological manifestations  of beriberi, pellagra, p

Name the animals having a single opening as mouth and anus, One example of ...

One example of animals having a single opening to the outside that serves both as mouth as well as anus is: 1. Octopus 2. Asterias 3. Ascidia 4. Fasciola Ascidia i

Determine the emerging clinical use of brain, Determine the Emerging clinic...

Determine the Emerging clinical use of brain Emerging clinical uses include identifying brain regions from which epileptic seizures emanate and confirming diagnoses of neurodeg

Can you explain puffeelfish poisoning, Q. Can you explain Puffeelfish poiso...

Q. Can you explain Puffeelfish poisoning? Tetrodotoxin (TTX) causes pufferfish (tetrodon) poisoning, also known as blowfish poisoning or fugu. How does a pufferfish look l

What is the bio-medical waste, What is the Bio-medical waste The Bio-m...

What is the Bio-medical waste The Bio-medical waste (Management & Handling Rules), 1998 is applicable to all persons, who generate, collect, receive, store, transport, treat,

How pathogenic bacteria cause diseases, What are some mechanisms by which p...

What are some mechanisms by which pathogenic bacteria cause diseases? Why is this knowledge important? Pathogenic bacteria have characteristics called as virulence factors that

Which of the processes results in the atp, Which of the processes results i...

Which of the processes results in the most ATP production within a cell?

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