Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/David_Allen_Laird> ?p ?o }
Showing triples 1 to 52 of
52
with 100 triples per page.
- David_Allen_Laird abstract "David Alan Laird is a professor at Iowa State University, Department of Agronomy, Ames, Iowa. Throughout his career as a soil scientist, he made many contributions to clay mineralogy, including developing a model describing the relationship between cation selectivity and the extent of crystalline swelling in expanding 2:1 phyllosilicates. Other work demonstrated the effects of ionic strength and cation charge on the breakup and formation of smectitic quasicrystals and the principle of cation demixing which lent great insight into understanding clay flocculation. Investigations in organic matter interactions with clay minerals led to the development of the idea of dual mode bonding in which amphipathic molecules interact with substrates by both hydrophobic-hydrophobic and hydrophilic-hydrophilic interactions. Laird et al. (2008) showed that smectites, a class of clay minerals found in soil, can adsorb tremendous amounts of organic materials and, hence, strongly influence the transport and bioavailability of organic materials including pesticides applied to the soil. In a study published in 2003, Gonzalez and Laird showed that new carbon derived from decomposing plant material tends to preferentially sorb to the fine clay subfraction of soil. Further work demonstrated that the coarse clay fraction had the greatest carbon to nitrogen ratio, greatest minimum residence time in the soil based on 14C radioisotope dating, and contained carbon most recalcitrant to microbial digestion. Collectively many of Dr. Laird's contributions to soil science have provided insight into understanding soil organic matter and clay interactions and, thus, the genesis of soil peds from the molecular viewpoint.More recent work has been focused on identifying pyrogenic carbon in soil with an emphasis on biochar soil application and studying the impact of biochar on soil properties. He also founded and led the USDA-ARS Biochar and Pyrolysis Initiative from 2008 - 2010 and has made continued contributions in the characterization of biochar and understanding its role in soil environments.".
- David_Allen_Laird wikiPageID "42742809".
- David_Allen_Laird wikiPageLength "4520".
- David_Allen_Laird wikiPageOutDegree "10".
- David_Allen_Laird wikiPageRevisionID "662688064".
- David_Allen_Laird wikiPageWikiLink Agricultural_Research_Service.
- David_Allen_Laird wikiPageWikiLink Ames,_Iowa.
- David_Allen_Laird wikiPageWikiLink Biochar.
- David_Allen_Laird wikiPageWikiLink Category:Iowa_State_University_faculty.
- David_Allen_Laird wikiPageWikiLink Category:Living_people.
- David_Allen_Laird wikiPageWikiLink Category:Soil_scientists.
- David_Allen_Laird wikiPageWikiLink Category:Year_of_birth_missing_(living_people).
- David_Allen_Laird wikiPageWikiLink Clay_minerals.
- David_Allen_Laird wikiPageWikiLink Iowa_State_University.
- David_Allen_Laird wikiPageWikiLink Phyllosilicates.
- David_Allen_Laird wikiPageWikiLink Silicate_minerals.
- David_Allen_Laird wikiPageWikiLink Smectite.
- David_Allen_Laird wikiPageWikiLink USDA-ARS.
- David_Allen_Laird wikiPageWikiLinkText "David Allen Laird".
- David_Allen_Laird hasPhotoCollection David_Allen_Laird.
- David_Allen_Laird name "Laird, David Allen".
- David_Allen_Laird shortDescription "American academic".
- David_Allen_Laird wikiPageUsesTemplate Template:Multiple_issues.
- David_Allen_Laird wikiPageUsesTemplate Template:Persondata.
- David_Allen_Laird wikiPageUsesTemplate Template:Reflist.
- David_Allen_Laird description "American academic".
- David_Allen_Laird description "American academic".
- David_Allen_Laird subject Category:Iowa_State_University_faculty.
- David_Allen_Laird subject Category:Living_people.
- David_Allen_Laird subject Category:Soil_scientists.
- David_Allen_Laird subject Category:Year_of_birth_missing_(living_people).
- David_Allen_Laird hypernym Professor.
- David_Allen_Laird type Agent.
- David_Allen_Laird type Person.
- David_Allen_Laird type Person.
- David_Allen_Laird type Agent.
- David_Allen_Laird type NaturalPerson.
- David_Allen_Laird type Thing.
- David_Allen_Laird type Q215627.
- David_Allen_Laird type Q5.
- David_Allen_Laird type Person.
- David_Allen_Laird comment "David Alan Laird is a professor at Iowa State University, Department of Agronomy, Ames, Iowa. Throughout his career as a soil scientist, he made many contributions to clay mineralogy, including developing a model describing the relationship between cation selectivity and the extent of crystalline swelling in expanding 2:1 phyllosilicates.".
- David_Allen_Laird label "David Allen Laird".
- David_Allen_Laird sameAs m.010lwzn6.
- David_Allen_Laird sameAs Q16875067.
- David_Allen_Laird sameAs Q16875067.
- David_Allen_Laird wasDerivedFrom David_Allen_Laird?oldid=662688064.
- David_Allen_Laird givenName "David Allen".
- David_Allen_Laird isPrimaryTopicOf David_Allen_Laird.
- David_Allen_Laird name "David Allen Laird".
- David_Allen_Laird name "Laird, David Allen".
- David_Allen_Laird surname "Laird".