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The rate at which primary producers in ecosystems are fixing organic matter.
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The total fixation of energy by photosynthesis in a region.
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The total amount of carbon (or organic matter or energy) fixed by an ecosystem, including the amount fixed but respired by the green plants. See Woodwell (1995a).
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Total amount of solar or geothermal energy converted to chemical energy in a certain time period by organisms in a given region. 863
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the amount of carbon fixed in photosynthesis by plants
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The total amount (mass or weight) of organic matter created by photosynthesis over a defined time period (total product of photosynthesis).
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The amount of energy fixed by photosynthesis over a defined time period.
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Primary production is the fixation of light energy into chemical compounds (the construction of sugars from CO2 and water; photosynthesis). Gross primary production then refers to the total amount of energy fixed by plants (the primary producers). This energy can then be used by plants to generate new biomass; growing.
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