For Biomass we have terms and definitions in 24 topics. The topics are Atmospheric Chemistry, Biology, Biomediation, Climate, Energy, Environment, Ethanol, Fish, Forestry, Geography, Global Warming, Hunting, Microbiology, Natural Gas, Naturopathic, Oceanography, Physical Geography, Sanitation, Satellite Meteorology, Science, Solar Energy, Speleological, Wind Energy and Wood.

The complete dry weight of organic material found in the biosphere or less strictly, the matter in the biosphere that is contained in living organisms. [Biology; Campbell, Niel; 1118; 1990; Benjamin Cummings, Redwood City.] [ Living in the Environment; Miller, Tyler; 467-470; 1994; Wadworth; Belmont.]
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The total dry weight of food at each level of the food pyramid.
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The amount of living matter present in a particular habitat, usually expressed as dry weight per unit area or volume or as weight per unit volume.
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The total dry organic matter or stored energy content of living organisms that is present at a specific time in a defined unit (community, ecosystem, crop, etc.) of the Earth's surface.
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Biomass is organic waste from agricultural, livestock, and lumber industry products, dead trees, foliage, etc., and is considered a renewable energy source. Biomass can be used as fuel and is most often burned to create steam that powers steam turbine generators. It is also used to make transportation fuels like ethanol and biodiesel, and chemicals like pyrolysis oil that can be burned like oil to produce energy.
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(1) the amount of living matter in an area, including plants, large animals and insects; (2) plant materials and animal waste used as fuel.
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Plant matter such as trees, grasses, agricultural crops or other biological material.
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The total quantity (at any given time) of living organisms of one or more species per unit of space (species biomass), or of all the species in a biotic community (community biomass).
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In terms of energy production, biomass is wood and forest residues, crops and other plants, and animal manure.
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The total weight of organisms, plant and animal, in a given area
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Materials that are biological in origin, including organic material (both living and dead) from above and below ground, for example, trees, crops, grasses, tree litter, roots, and animals and animal waste.
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The total weight of all living organisms in a biological community.
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A general term to indicate the total weight (usually dry weight) of a microorganism in a culture or an environment.
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Biologically produced organic matter.
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The actual amount of existing material within a species or genus.
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The amount of living matter, including plants and animals in a given habitat, expressed either as:
* the weight of organisms per unit area, or,
* as the volume of organisms per unit area, or
* as the volume of organisms per unit volume of habitat.
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The weight of living tissues usually measured per unit area over a particular time interval. Can include the dead parts of organisms like bark, hair, and nails.
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The mass of biological material contained in a system.
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The total amount of living material in a given system.
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Pertaining to all organic matter produced by presently (or very recently) living organisms.
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A renewable form of energy that is derived from burning plant material that can be “renewed” by planting and growing again each year.
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The total mass or weight of living matter, usually relates to a given area, habitat or community.
Biology - Flora & Fauna.
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Wood waste, agricultural wastes, methane gases from landfills, and crops grown specifically for energy production.
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Total woody material in a forest. Refers to both merchantable material and material left following a conventional logging operation. In the broad sense, all of the organic material on a given area; in the narrow sense, burnable vegetation to be used for fuel in a combustion system
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