What is a biomass in biology?

What is a 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.

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 primary productivity in biology?

Primary productivity is the process by which organisms make their own food from inorganic sources. The majority of primary producers are terrestrial plants and microbial life, such as algae. Primary productivity due to photosynthesis is commonly measured by quantifying oxygen production or CO2 assimilation.

What is high net primary productivity?

The primary productivity of an ecosystem is defined as the speed at which the solar energy is turned into an organic substance by chlorophyll in the photosynthesis. A high primary productivity rate in the ecosystems is obtained when the physical factors (for instance: water, nutrients and climate) are favourable.

What is biomass in biology class 10?

The dead parts of plants and trees, and the waste material of animals are called biomass. Biomass is the organic matter which is used as a fuel to produce energy. Biomass includes wood, agricultural wastes (crop residues) and cow-dung.

What is productivity in an ecosystem?

In ecology, productivity is the rate at which energy is added to the bodies of organisms in the form of biomass. Productivity can be defined for any trophic level or other group, and it may take units of either energy or biomass. There are two basic types of productivity: gross and net.

What is productivity Byjus?

Productivity refers to the rate of generation of biomass in the ecosystem. It is expressed in units of mass per unit surface.

What is productivity in environmental science?

What is secondary productivity in biology?

Secondary production is the generation of biomass of heterotrophic (consumer) organisms in a system. This is driven by the transfer of organic material between trophic levels, and represents the quantity of new tissue created through the use of assimilated food.

What is GPP and NPP?

While gross primary production (GPP) is the total influx of carbon into an ecosystem through the photosynthetic fixation of CO2, net primary production (NPP) is this gross carbon influx discounted for plant respiratory costs of growth and maintenance.

What causes high NPP?

Net Primary Productivity is affected by temperature, water availability, carbon dioxide, and nutrients, all of which are abiotic factors. In Tropical Rainforests, water, sunlight, and high temperatures are consistent and a dense concentration of plants is present, causing both the GPP and NPP to be very high.

Which is the best definition of bioproductivity?

Bioproductivity, efficiency, and related terms. Bioproductivity is the coordinated manifestation of the efficiency with which biological processes operate at various organization scales, from molecular/cellular to the whole organism and population.

How is the amount of bioproductivity expressed in hectare?

The amount of biological material useful to humans that is generated in a given area. In agriculture, productivity is called yield (biomass x land area). Expressed in amount per hectare [1-2].

How is biological productivity related to aquatic production?

Central to all biological activity within inland aquatic ecosystems is biological productivity or aquatic production. This involves two main processes: (1) primary production, in which living organisms form energy-rich organic material (biomass) from energy-poor inorganic materials in the environment through photosynthesis, and (2)…

What are the two main processes of biological productivity?

This involves two main processes: (1) primary production, in which living organisms form energy-rich organic material (biomass) from energy-poor inorganic materials in the environment through photosynthesis, and (2)… Primary productivity is the rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances.