Effect of substrate location in soil and soil pore-water regime on carbon turnover
Introduction of 14C-labelled glucose into soil pores of two different size classes (
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| Veröffentlicht in: | Soil biology & biochemistry 1993, Vol.25 (1), p.57-62 |
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| container_title | Soil biology & biochemistry |
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| creator | Killham, K. Amato, M. Ladd, J.N. |
| description | Introduction of
14C-labelled glucose into soil pores of two different size classes ( |
| doi_str_mv | 10.1016/0038-0717(93)90241-3 |
| format | Article |
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14C-labelled glucose into soil pores of two different size classes (<6 and 6–30 μm neck dia) of a Vertisol, and subsequent comparison of
14C flow at two matric potentials (— 50 and −10 kPa), enabled an evaluation of the effects of substrate location and pore-water regime on carbon turnover. Based on
14CO
2 evolution and biomass
14C concentrations in soil, turnover of added substrate carbon during a 4-week incubation was found to be greater when substrate was located in the larger pores, and particularly when such amended soil was held at the lower soil water matric potential. Observed differences in carbon turnover highlighted the importance of spatial compartmentalization of substrates and decomposers (primary and secondary) in soil due to both pore size exclusion (microhabitats) and the degree to which pores are water-filled.</description><identifier>ISSN: 0038-0717</identifier><identifier>EISSN: 1879-3428</identifier><identifier>DOI: 10.1016/0038-0717(93)90241-3</identifier><identifier>CODEN: SBIOAH</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Agronomy. Soil science and plant productions ; biogeochemical cycles ; biological activity in soil ; Biological and medical sciences ; Chemical, physicochemical, biochemical and biological properties ; degradation ; Fundamental and applied biological sciences. Psychology ; Generalities ; glucose ; Invertebrates ; matric potential ; microhabitats ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; pore size ; soil fauna ; soil microorganisms ; soil organic matter ; soil pore system ; Soil science ; soil water content ; spatial distribution ; substrates ; Vertisols</subject><ispartof>Soil biology & biochemistry, 1993, Vol.25 (1), p.57-62</ispartof><rights>1993</rights><rights>1993 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-2f4af3a92667be42a592b7cf95dea66940fa01e71adcffad0467d07d3371e1fe3</citedby><cites>FETCH-LOGICAL-c388t-2f4af3a92667be42a592b7cf95dea66940fa01e71adcffad0467d07d3371e1fe3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0038-0717(93)90241-3$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4541476$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Killham, K.</creatorcontrib><creatorcontrib>Amato, M.</creatorcontrib><creatorcontrib>Ladd, J.N.</creatorcontrib><title>Effect of substrate location in soil and soil pore-water regime on carbon turnover</title><title>Soil biology & biochemistry</title><description>Introduction of
14C-labelled glucose into soil pores of two different size classes (<6 and 6–30 μm neck dia) of a Vertisol, and subsequent comparison of
14C flow at two matric potentials (— 50 and −10 kPa), enabled an evaluation of the effects of substrate location and pore-water regime on carbon turnover. Based on
14CO
2 evolution and biomass
14C concentrations in soil, turnover of added substrate carbon during a 4-week incubation was found to be greater when substrate was located in the larger pores, and particularly when such amended soil was held at the lower soil water matric potential. Observed differences in carbon turnover highlighted the importance of spatial compartmentalization of substrates and decomposers (primary and secondary) in soil due to both pore size exclusion (microhabitats) and the degree to which pores are water-filled.</description><subject>Agronomy. Soil science and plant productions</subject><subject>biogeochemical cycles</subject><subject>biological activity in soil</subject><subject>Biological and medical sciences</subject><subject>Chemical, physicochemical, biochemical and biological properties</subject><subject>degradation</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Generalities</topic><topic>glucose</topic><topic>Invertebrates</topic><topic>matric potential</topic><topic>microhabitats</topic><topic>Physics, chemistry, biochemistry and biology of agricultural and forest soils</topic><topic>pore size</topic><topic>soil fauna</topic><topic>soil microorganisms</topic><topic>soil organic matter</topic><topic>soil pore system</topic><topic>Soil science</topic><topic>soil water content</topic><topic>spatial distribution</topic><topic>substrates</topic><topic>Vertisols</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Killham, K.</creatorcontrib><creatorcontrib>Amato, M.</creatorcontrib><creatorcontrib>Ladd, J.N.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Soil biology & biochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Killham, K.</au><au>Amato, M.</au><au>Ladd, J.N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of substrate location in soil and soil pore-water regime on carbon turnover</atitle><jtitle>Soil biology & biochemistry</jtitle><date>1993</date><risdate>1993</risdate><volume>25</volume><issue>1</issue><spage>57</spage><epage>62</epage><pages>57-62</pages><issn>0038-0717</issn><eissn>1879-3428</eissn><coden>SBIOAH</coden><abstract>Introduction of
14C-labelled glucose into soil pores of two different size classes (<6 and 6–30 μm neck dia) of a Vertisol, and subsequent comparison of
14C flow at two matric potentials (— 50 and −10 kPa), enabled an evaluation of the effects of substrate location and pore-water regime on carbon turnover. Based on
14CO
2 evolution and biomass
14C concentrations in soil, turnover of added substrate carbon during a 4-week incubation was found to be greater when substrate was located in the larger pores, and particularly when such amended soil was held at the lower soil water matric potential. Observed differences in carbon turnover highlighted the importance of spatial compartmentalization of substrates and decomposers (primary and secondary) in soil due to both pore size exclusion (microhabitats) and the degree to which pores are water-filled.</abstract><cop>Oxford</cop><cop>New York, NY</cop><pub>Elsevier Ltd</pub><doi>10.1016/0038-0717(93)90241-3</doi><tpages>6</tpages></addata></record> |
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| ispartof | Soil biology & biochemistry, 1993, Vol.25 (1), p.57-62 |
| issn | 0038-0717 1879-3428 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Agronomy. Soil science and plant productions biogeochemical cycles biological activity in soil Biological and medical sciences Chemical, physicochemical, biochemical and biological properties degradation Fundamental and applied biological sciences. Psychology Generalities glucose Invertebrates matric potential microhabitats Physics, chemistry, biochemistry and biology of agricultural and forest soils pore size soil fauna soil microorganisms soil organic matter soil pore system Soil science soil water content spatial distribution substrates Vertisols |
| title | Effect of substrate location in soil and soil pore-water regime on carbon turnover |
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