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What is the difference between biomass and productivity?
Biomass is the living (and sometimes including recently dead) organic material synthesized by plants and other organisms. Primary productivity is the process resulting from photosynthetic activity of the plants and determines biomass accumulation in forests.
Biomass productivity is determined by dividing the biomass per unit area by the age of the forest ecosystem. The mature standing crop in a natural ecosystem will range from 4-500 or more tons per hectare and annual dry matter production from 0.1–7.5 tons per hectare. …
What is productivity in biology?
Definition of Biological productivity: The quantity of organic matter or its equivalent in dry matter, carbon, or energy content which is accumulated during a given period of time.
What is the difference between biomass and standing crop?
Terms for Biomass Phytomass = Total weight of plant mass per unit of area in an ecosystem. Standing Crop = The amount of biomass at a given time. Usually refers to the amount of above-ground plant biomass. Peak Standing Crop = The maximum amount of standing crop observed during a given year.
What is biomass in biology?
Biomass, the contraction for biological IIIXS, is the amount of living material provided by a given area or volume of the earth’s surface, whether terrestrial or aquatic.
How is biomass measured?
Typical units of biomass are grams per meter squared (g/ m2), although you will also see kg/m2, lb/ft2, etc. While knowing an ecosystem’s biomass is useful for many applications such as farming, logging, and wildlife manage- ment, another helpful unit of measure in an ecosystem is how much carbon is stored.
What is the difference between primary productivity and secondary productivity?
b) Define food web….
| Primary productivity | Secondary productivity |
|---|---|
| The energy is obtained from the sunlight and food is produced. | The energy is obtained by the transfer of the energy through food chain. |
| The process of production is fast. | The process of production is quite slow. |
What is the key difference between primary productivity and net primary productivity quizlet?
What is the key difference between primary productivity and net primary productivity? Net primary productivity represents just the energy used to build biomass. Net primary productivity is a small fraction (often ~10%) of primary productivity.
Is biomass production research linked to energy conversion?
Biomass production research and research on technologies for conversion of biomass to energy is developing rapidly within the European Union. In the UK, it has become clear that the two research areas must, of necessity, be linked. To allow examination of this linkage, a comprehensive economic and systems model has been developed at ETSU.
Can biomass productivity of plantations be accurately determined?
Biomass productivity of plantations can be determined accurately but the biomass productivity of uneven or all age stands are estimates of questionable value because of the age variation encountered. Two of the best compilations of biomass and biomass productivity for forest ecosystems are by Rodin and Basilevich (1968) and Art and Marks (1971).
How can biomass production and productivity be controlled in PBRs?
Biomass production and productivity in PBRs are controlled by nonlinear predictive control and proportional-integral derivatives (PID) with feedback linearization for operating a PBR with constant density mode.
Why is biomass production important to the environment?
Also because biomass production is widely dispersed, resource-driven international conflicts over petroleum might be minimized or avoided entirely. Biomass production is a key part of global cycles of carbon, oxygen, nitrogen, water and other compounds.