Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
What is the main external morphological feature that differentiates platyhelminthes from other worms (nematodes)? Platyhelminthes are also called as flatworms because they are
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
what is the bioindicator of water pollution.
Define Reduction of blood lipids? This effect have been especially observed with saponins. Diets containing saponin-rich foods (300-500 mg saponins/day) e.g. soya, alfalfa, chi
What is Peripheral Vein Feeding Intravenous feeding is a method of providing parenteral nutrition when a patient cannot take in food or formula through the gastrointestinal
Tumours of kidney - Wilm's Tomour So far you have learnt about the disorders in glomerular dysfunctioning, now you will learn about the tumours in kidney the wilm's tumour.
CAR E OF EYES - 1. Eyes should be periodically examined in children. 2. While reading the paper should be held 36 cm. away from eyes and preferable at an angle
Q. Meaning of Counselling in diabetes mellitus? The word counselling is a very broad term which is used for helping others to overcome their particular difficulty. It has been
What type of larval dispersal does Dreissenids use?
Do sea urchins have teeth? Sea urchins have a teeth-like structure juxtaposed to the mouth and made of five teeth linked to ossicles and muscle fibers. This structure, called a
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd