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geobotanical exploration

geobotanical exploration (biogeochemical exploration) Traditionally, the use of indicator plant species or assemblages to detect the possible presence of metal-rich deposits. It is based on the principle of limits of tolerance; i.e., it assumes that only specialized species can withstand metal-contaminated soils. In practice, plant response may be confusingly more complex (e.g., plants may respond to low availability of essential nutrients rather than to high presence of toxic minerals), which makes such indicators unreliable. In modern use the concept includes the collection and chemical analysis of plant materials or soil layers, especially humus, in which metal ions may accumulate. It is a supplementary rather than a primary prospecting method. See also LIMITING FACTOR and LIMITS OF TOLERANCE.

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geobotanical exploration

geobotanical exploration(biogeochemical exploration) Traditionally, the use of indicator plant species or assemblages to detect the possible presence of metal-rich deposits. It is based on the principle of limits of tolerance, i.e. it assumes that only specialized species can withstand metal-contaminated soils. In practice, plant response may be confusingly more complex (e.g. plants may respond to low availability of essential nutrients rather than to high presence of toxic minerals) which makes such indicators unreliable. In modern use the concept includes the collection and chemical analysis of plant materials or soil layers, especially humus, in which metal ions may accumulate. It is a supplementary rather than a primary prospecting method. See also limiting factor.

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"geobotanical exploration." A Dictionary of Ecology. . Encyclopedia.com. 20 May. 2018 <http://www.encyclopedia.com>.

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"geobotanical exploration." A Dictionary of Ecology. . Retrieved May 20, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/geobotanical-exploration-0

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geobotanical exploration

geobotanical exploration (biogeochemical exploration) Traditionally, the use of indicator plant species or assemblages to detect the possible presence of metal-rich deposits. It is based on the limits-of-tolerance principle, i.e. it assumes that only specialized species can withstand metal-contaminated soils. In practice, plant response may be confusingly more complex (e.g. plants may respond to the low availability of essential nutrients rather than to a high concentration of toxic minerals) which makes such indicators unreliable. In modern use the concept includes the collection and chemical analysis of plant materials or soil layers, especially humus, in which metal ions may accumulate. It is a supplementary rather than a primary prospecting method.

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"geobotanical exploration." A Dictionary of Earth Sciences. . Encyclopedia.com. 20 May. 2018 <http://www.encyclopedia.com>.

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"geobotanical exploration." A Dictionary of Earth Sciences. . Retrieved May 20, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/geobotanical-exploration

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