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In soil science, pedotransfer functions (PTF) are predictive functions of certain soil properties using data from soil surveys. The term pedotransfer function was coined by Johan Bouma as translating data we have into what we need. The most readily available data comes from a soil survey, such as the field morphology, soil texture, structure and pH. Pedotransfer functions add value to this basic information by translating them into estimates of other more laborious and expensively determined soil properties. These functions fill the gap between the available soil data and the properties which are more useful or required for a particular model or quality assessment. Pedotransfer functions utilize various regression analysis and data mining techniques to extract rules associating basic soil

Attributes	Values
rdf:type	software
rdfs:label	Pedotransfer function (en)
rdfs:comment	In soil science, pedotransfer functions (PTF) are predictive functions of certain soil properties using data from soil surveys. The term pedotransfer function was coined by Johan Bouma as translating data we have into what we need. The most readily available data comes from a soil survey, such as the field morphology, soil texture, structure and pH. Pedotransfer functions add value to this basic information by translating them into estimates of other more laborious and expensively determined soil properties. These functions fill the gap between the available soil data and the properties which are more useful or required for a particular model or quality assessment. Pedotransfer functions utilize various regression analysis and data mining techniques to extract rules associating basic soil (en)
dcterms:subject	Pedology Soil physics
Wikipage page ID	2389749 (xsd:integer)
Wikipage revision ID	1018378014 (xsd:integer)
Link from a Wikipage to another Wikipage	Rule of thumb Pedology United States Department of Agriculture Johan Bouma Permanent wilting point Clay Soil survey Bulk density Data mining Regression analysis Hydraulic conductivity Soil science Soil texture classification Artificial neural network Soil physics Soil texture Available water capacity Field capacity Sand Silt Soil Soil organic matter Water retention curve Nonlimiting water range Moisture equivalent Soil functions Soil inference system Water content Lyman Briggs
Link from a Wikipage to an external page	http://www.sipeaa.it/ASP/ASP2/SOILPAR.asp http://www.ars.usda.gov/Services/docs.htm%3Fdocid=8953
sameAs	Pedotransfer function Pedotransfer function Pedotransfer function
has abstract	In soil science, pedotransfer functions (PTF) are predictive functions of certain soil properties using data from soil surveys. The term pedotransfer function was coined by Johan Bouma as translating data we have into what we need. The most readily available data comes from a soil survey, such as the field morphology, soil texture, structure and pH. Pedotransfer functions add value to this basic information by translating them into estimates of other more laborious and expensively determined soil properties. These functions fill the gap between the available soil data and the properties which are more useful or required for a particular model or quality assessment. Pedotransfer functions utilize various regression analysis and data mining techniques to extract rules associating basic soil properties with more difficult to measure properties. Although not formally recognized and named until 1989, the concept of the pedotransfer function has long been applied to estimate soil properties that are difficult to determine. Many soil science agencies have their own (unofficial) rule of thumb for estimating difficult-to-measure soil properties. Probably because of the particular difficulty, cost of measurement, and availability of large databases, the most comprehensive research in developing PTFs has been for the estimation of water retention curve and hydraulic conductivity. (en)
gold:hypernym	Functions
prov:wasDerivedFrom	wikipedia-en:Pedotransfer_function?oldid=1018378014&ns=0
page length (characters) of wiki page	6942 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Pedotransfer_function
is Link from a Wikipage to another Wikipage of	Ped- Permanent wilting point Lyman James Briggs PTF Hydraulic conductivity Soil science Field capacity Nonlimiting water range Moisture equivalent Soil functions Soil inference system Pedotransfer Pedotransfer functions
is Wikipage redirect of	Pedotransfer Pedotransfer functions
is foaf:primaryTopic of	wikipedia-en:Pedotransfer_function

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