CO2 fluxes of cryptogamic crusts. II. Response to dehydration
The carbon dioxide exchange of Microcoleus- and Scytonema-dominated cryptogamic crusts as related to dehydration was measured in the laboratory with a modified discrete sampling technique and infrared gas analysis. The dehydration curves predicted that carboxylation and dark respiration rates for bo...
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| Veröffentlicht in: | The New phytologist 1993-10, Vol.125 (2), p.391-396 |
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| container_title | The New phytologist |
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| creator | Jeffries, D.L Link, S.O Klopatek, J.M |
| description | The carbon dioxide exchange of Microcoleus- and Scytonema-dominated cryptogamic crusts as related to dehydration was measured in the laboratory with a modified discrete sampling technique and infrared gas analysis. The dehydration curves predicted that carboxylation and dark respiration rates for both crust types would become zero at from 4 to 5% water content (W) (approximately 16-23% soil saturation), with the water contents at which the rates became zero significantly lower in the second treatment cycle than the first. The dehydration curves predicted that net photosynthesis rates would become zero at 6.7-11.2% W (27-44% soil saturation), with the water contents at which the rates became zero significantly higher in the second cycle of treatment than the first. |
| doi_str_mv | 10.1111/j.1469-8137.1993.tb03891.x |
| format | Article |
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II. Response to dehydration</title><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>JSTOR Archive Collection A-Z Listing</source><source>Alma/SFX Local Collection</source><creator>Jeffries, D.L ; Link, S.O ; Klopatek, J.M</creator><creatorcontrib>Jeffries, D.L ; Link, S.O ; Klopatek, J.M</creatorcontrib><description>The carbon dioxide exchange of Microcoleus- and Scytonema-dominated cryptogamic crusts as related to dehydration was measured in the laboratory with a modified discrete sampling technique and infrared gas analysis. The dehydration curves predicted that carboxylation and dark respiration rates for both crust types would become zero at from 4 to 5% water content (W) (approximately 16-23% soil saturation), with the water contents at which the rates became zero significantly lower in the second treatment cycle than the first. The dehydration curves predicted that net photosynthesis rates would become zero at 6.7-11.2% W (27-44% soil saturation), with the water contents at which the rates became zero significantly higher in the second cycle of treatment than the first.</description><identifier>ISSN: 0028-646X</identifier><identifier>EISSN: 1469-8137</identifier><identifier>DOI: 10.1111/j.1469-8137.1993.tb03891.x</identifier><identifier>CODEN: NEPHAV</identifier><language>eng</language><publisher>Oxford: Cambridge University Press</publisher><subject>Animal, plant and microbial ecology ; Biological and medical sciences ; Biological soil crusts ; Carbon dioxide ; Carboxylation ; Confidence interval ; cryptogams ; Cyanobacteria ; Dehydration ; Desert soils ; desiccation ; Fundamental and applied biological sciences. 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The dehydration curves predicted that net photosynthesis rates would become zero at 6.7-11.2% W (27-44% soil saturation), with the water contents at which the rates became zero significantly higher in the second cycle of treatment than the first.</description><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Biological soil crusts</subject><subject>Carbon dioxide</subject><subject>Carboxylation</subject><subject>Confidence interval</subject><subject>cryptogams</subject><subject>Cyanobacteria</subject><subject>Dehydration</subject><subject>Desert soils</subject><subject>desiccation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>gas exchange</subject><subject>lichen crusts</subject><subject>Microbial ecology</subject><subject>Microcoleus</subject><subject>Moisture content</subject><subject>Photosynthesis</subject><subject>Respiration</subject><subject>Scytonema</subject><subject>Soil</subject><subject>Soil crusts</subject><issn>0028-646X</issn><issn>1469-8137</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNo9j11LwzAUhoMoOKf_QLCIF9605rNJLryQ4cdgMFAH3pWkSWdH19Qkhe3fG5ns3JxzeB5eeAG4RbBAaR42BaKlzAUivEBSkiJqSIRExe4ETI7oFEwgxCIvafl1Di5C2EAIJSvxBDzOljhrunFnQ-aarPb7Ibq12rZ1uscQQ5HN50X2bsPg-mCz6DJjv_fGq9i6_hKcNaoL9up_T8Hq5flz9pYvlq_z2dMibxBnMddSM0UlI4gKKYhQSkOojVIcGUqNUVY0GgkpBRc8_VLb0lBW6ppLKIwmU3B_yB28-xltiNW2DbXtOtVbN4YKM8RKgVOjpN79qyrUqmu86us2VINvt8rvKyIJwYIn7fqgbUJ0_ogxYwLjP3xzwI1ylVr7lLD6wBARmCogKjn5BahpbbM</recordid><startdate>19931001</startdate><enddate>19931001</enddate><creator>Jeffries, D.L</creator><creator>Link, S.O</creator><creator>Klopatek, J.M</creator><general>Cambridge University Press</general><general>Blackwell</general><scope>FBQ</scope><scope>IQODW</scope><scope>7X8</scope></search><sort><creationdate>19931001</creationdate><title>CO2 fluxes of cryptogamic crusts. II. Response to dehydration</title><author>Jeffries, D.L ; Link, S.O ; Klopatek, J.M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f175t-b9b5a49531489838aab00bdaa71d44ddae8fb189987874dd9be6d456bc7908db3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Animal, plant and microbial ecology</topic><topic>Biological and medical sciences</topic><topic>Biological soil crusts</topic><topic>Carbon dioxide</topic><topic>Carboxylation</topic><topic>Confidence interval</topic><topic>cryptogams</topic><topic>Cyanobacteria</topic><topic>Dehydration</topic><topic>Desert soils</topic><topic>desiccation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>gas exchange</topic><topic>lichen crusts</topic><topic>Microbial ecology</topic><topic>Microcoleus</topic><topic>Moisture content</topic><topic>Photosynthesis</topic><topic>Respiration</topic><topic>Scytonema</topic><topic>Soil</topic><topic>Soil crusts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jeffries, D.L</creatorcontrib><creatorcontrib>Link, S.O</creatorcontrib><creatorcontrib>Klopatek, J.M</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>MEDLINE - Academic</collection><jtitle>The New phytologist</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jeffries, D.L</au><au>Link, S.O</au><au>Klopatek, J.M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>CO2 fluxes of cryptogamic crusts. II. Response to dehydration</atitle><jtitle>The New phytologist</jtitle><date>1993-10-01</date><risdate>1993</risdate><volume>125</volume><issue>2</issue><spage>391</spage><epage>396</epage><pages>391-396</pages><issn>0028-646X</issn><eissn>1469-8137</eissn><coden>NEPHAV</coden><abstract>The carbon dioxide exchange of Microcoleus- and Scytonema-dominated cryptogamic crusts as related to dehydration was measured in the laboratory with a modified discrete sampling technique and infrared gas analysis. The dehydration curves predicted that carboxylation and dark respiration rates for both crust types would become zero at from 4 to 5% water content (W) (approximately 16-23% soil saturation), with the water contents at which the rates became zero significantly lower in the second treatment cycle than the first. The dehydration curves predicted that net photosynthesis rates would become zero at 6.7-11.2% W (27-44% soil saturation), with the water contents at which the rates became zero significantly higher in the second cycle of treatment than the first.</abstract><cop>Oxford</cop><pub>Cambridge University Press</pub><doi>10.1111/j.1469-8137.1993.tb03891.x</doi><tpages>6</tpages></addata></record> |
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| ispartof | The New phytologist, 1993-10, Vol.125 (2), p.391-396 |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; JSTOR Archive Collection A-Z Listing; Alma/SFX Local Collection |
| subjects | Animal, plant and microbial ecology Biological and medical sciences Biological soil crusts Carbon dioxide Carboxylation Confidence interval cryptogams Cyanobacteria Dehydration Desert soils desiccation Fundamental and applied biological sciences. Psychology gas exchange lichen crusts Microbial ecology Microcoleus Moisture content Photosynthesis Respiration Scytonema Soil Soil crusts |
| title | CO2 fluxes of cryptogamic crusts. II. Response to dehydration |
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