Carbon mineralization in saline soils as affected by residue composition and water potential
In saline soils under semi-arid climate, low matric and osmotic potential are the main stressors for microbes. But little is known about the impact of water potential (sum of matric and osmotic potential) and substrate composition on microbial activity and biomass in field collected saline soils. Th...
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| description | In saline soils under semi-arid climate, low matric and osmotic potential are the main stressors for microbes. But little is known about the impact of water potential (sum of matric and osmotic potential) and substrate composition on microbial activity and biomass in field collected saline soils. Three sandy loam soils with electrical conductivity of the saturated soil extract (EC
e
) 3.8, 11 and 21 dS m
−1
(hereafter referred to EC3.8, EC11 and EC21) were kept at optimal water content for 14 days. After this pre-incubation, the soils were either left at optimal water content or dried to achieve water potentials of −2.33, −2.82, −3.04 and −4.04 MPa. Then, the soils were amended with 20 g kg
−1
pea or wheat residue to increase nutrient supply. Carbon dioxide emission was measured over 14 days; microbial biomass C was measured at the end of the experiment. Cumulative respiration decreased with decreasing water potential and was significantly (
P
|
| doi_str_mv | 10.1007/s00374-012-0698-x |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1352286784</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1352286784</sourcerecordid><originalsourceid>FETCH-LOGICAL-c445t-e4dbe109c7c9a54c4d2289a951a8b0f013252c0732cfb494fb94003857ec8ab83</originalsourceid><addsrcrecordid>eNp1kF9LHDEUxUOp4Nb6AXwLlEJfps2_2SSPslQtCH3RNyHcydwpkdlkzZ2l2k9v7EophUIgHPI7594cxs6k-CyFsF9ICG1NJ6TqxNq77vENW0mjm7LOv2UrIa3rlF2rY_aO6F4I2TvpV-xuA3UomW9Txgpz-gVLajJlTk1l5FTSTBzamSaMC458eOIVKY175LFsd4XSbwvkkf-EBSvflQXzkmB-z44mmAlPX-8Tdnvx9WZz1V1_v_y2Ob_uojH90qEZB5TCRxs99CaaUSnnwfcS3CAmIbXqVRRWqzgNxptp8KZ91_UWo4PB6RP26ZC7q-Vhj7SEbaKI8wwZy56C1H1LXFtnGvrhH_S-7Gtu2zVKOd2GrlWj5IGKtRBVnMKupi3UpyBFeOk7HPoOre_w0nd4bJ6Pr8lAEeapQo6J_hhb99IIrRunDhy1p_wD618b_Df8GVjGkFU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1328395162</pqid></control><display><type>article</type><title>Carbon mineralization in saline soils as affected by residue composition and water potential</title><source>SpringerLink Journals</source><creator>Setia, Raj ; Marschner, Petra</creator><creatorcontrib>Setia, Raj ; Marschner, Petra</creatorcontrib><description>In saline soils under semi-arid climate, low matric and osmotic potential are the main stressors for microbes. But little is known about the impact of water potential (sum of matric and osmotic potential) and substrate composition on microbial activity and biomass in field collected saline soils. Three sandy loam soils with electrical conductivity of the saturated soil extract (EC
e
) 3.8, 11 and 21 dS m
−1
(hereafter referred to EC3.8, EC11 and EC21) were kept at optimal water content for 14 days. After this pre-incubation, the soils were either left at optimal water content or dried to achieve water potentials of −2.33, −2.82, −3.04 and −4.04 MPa. Then, the soils were amended with 20 g kg
−1
pea or wheat residue to increase nutrient supply. Carbon dioxide emission was measured over 14 days; microbial biomass C was measured at the end of the experiment. Cumulative respiration decreased with decreasing water potential and was significantly (
P
< 0.05) lower in soils at water potential −4 MPa than in soils at optimal water content. The effect of residue type on the response of cumulative respiration was inconsistent; with residue type having no effect in the saline soils (EC11 and EC21) whereas in the non-saline soil (EC3.8), the decrease in respiration with decreasing water potential was less with wheat than with pea residue. At a given water potential, the absolute and relative (in percentage of optimal water content) cumulative respiration was lower in the saline soils than in the non-saline soil. This can be explained by the lower osmotic potential and the smaller microbial biomass in the saline soils. However, even at a similar osmotic potential, cumulative respiration was higher in the non-saline soil. It can be concluded that high salt concentrations in the soil solution strongly reduce microbial activity even if the water content is relatively high. The stronger relative decrease in microbial activity in the saline soils at a given osmotic potential compared to the non-saline soil suggests that the small biomass in saline soils is less able to tolerate low osmotic potential. Hence, drying of soil will have a stronger negative effect on microbial activity in saline than in non-saline soils.</description><identifier>ISSN: 0178-2762</identifier><identifier>EISSN: 1432-0789</identifier><identifier>DOI: 10.1007/s00374-012-0698-x</identifier><identifier>CODEN: BFSOEE</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Agriculture ; Agronomy. Soil science and plant productions ; Arid climates ; Biochemistry and biology ; Biological and medical sciences ; Biomass ; Biomedical and Life Sciences ; Carbon ; Carbon dioxide emissions ; Chemical, physicochemical, biochemical and biological properties ; Crop residues ; Emission measurements ; Fundamental and applied biological sciences. Psychology ; Life Sciences ; Microbial activity ; Microbiology ; Mineralization ; Mineralogy ; Organic matter ; Original Paper ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; Respiration ; Saline soils ; Salinity ; Sandy loam ; Sandy soils ; Saturated soils ; Semiarid climates ; Soil science ; Soil Science & Conservation ; Soil solution ; Soils ; Triticum aestivum ; Water ; Water content ; Water potential ; Wheat</subject><ispartof>Biology and fertility of soils, 2013-01, Vol.49 (1), p.71-77</ispartof><rights>Springer-Verlag 2012</rights><rights>2014 INIST-CNRS</rights><rights>Springer-Verlag Berlin Heidelberg 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-e4dbe109c7c9a54c4d2289a951a8b0f013252c0732cfb494fb94003857ec8ab83</citedby><cites>FETCH-LOGICAL-c445t-e4dbe109c7c9a54c4d2289a951a8b0f013252c0732cfb494fb94003857ec8ab83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00374-012-0698-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00374-012-0698-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27614033$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Setia, Raj</creatorcontrib><creatorcontrib>Marschner, Petra</creatorcontrib><title>Carbon mineralization in saline soils as affected by residue composition and water potential</title><title>Biology and fertility of soils</title><addtitle>Biol Fertil Soils</addtitle><description>In saline soils under semi-arid climate, low matric and osmotic potential are the main stressors for microbes. But little is known about the impact of water potential (sum of matric and osmotic potential) and substrate composition on microbial activity and biomass in field collected saline soils. Three sandy loam soils with electrical conductivity of the saturated soil extract (EC
e
) 3.8, 11 and 21 dS m
−1
(hereafter referred to EC3.8, EC11 and EC21) were kept at optimal water content for 14 days. After this pre-incubation, the soils were either left at optimal water content or dried to achieve water potentials of −2.33, −2.82, −3.04 and −4.04 MPa. Then, the soils were amended with 20 g kg
−1
pea or wheat residue to increase nutrient supply. Carbon dioxide emission was measured over 14 days; microbial biomass C was measured at the end of the experiment. Cumulative respiration decreased with decreasing water potential and was significantly (
P
< 0.05) lower in soils at water potential −4 MPa than in soils at optimal water content. The effect of residue type on the response of cumulative respiration was inconsistent; with residue type having no effect in the saline soils (EC11 and EC21) whereas in the non-saline soil (EC3.8), the decrease in respiration with decreasing water potential was less with wheat than with pea residue. At a given water potential, the absolute and relative (in percentage of optimal water content) cumulative respiration was lower in the saline soils than in the non-saline soil. This can be explained by the lower osmotic potential and the smaller microbial biomass in the saline soils. However, even at a similar osmotic potential, cumulative respiration was higher in the non-saline soil. It can be concluded that high salt concentrations in the soil solution strongly reduce microbial activity even if the water content is relatively high. The stronger relative decrease in microbial activity in the saline soils at a given osmotic potential compared to the non-saline soil suggests that the small biomass in saline soils is less able to tolerate low osmotic potential. Hence, drying of soil will have a stronger negative effect on microbial activity in saline than in non-saline soils.</description><subject>Agriculture</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Arid climates</subject><subject>Biochemistry and biology</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>Biomedical and Life Sciences</subject><subject>Carbon</subject><subject>Carbon dioxide emissions</subject><subject>Chemical, physicochemical, biochemical and biological properties</subject><subject>Crop residues</subject><subject>Emission measurements</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Life Sciences</subject><subject>Microbial activity</subject><subject>Microbiology</subject><subject>Mineralization</subject><subject>Mineralogy</subject><subject>Organic matter</subject><subject>Original Paper</subject><subject>Physics, chemistry, biochemistry and biology of agricultural and forest soils</subject><subject>Respiration</subject><subject>Saline soils</subject><subject>Salinity</subject><subject>Sandy loam</subject><subject>Sandy soils</subject><subject>Saturated soils</subject><subject>Semiarid climates</subject><subject>Soil science</subject><subject>Soil Science & Conservation</subject><subject>Soil solution</subject><subject>Soils</subject><subject>Triticum aestivum</subject><subject>Water</subject><subject>Water content</subject><subject>Water potential</subject><subject>Wheat</subject><issn>0178-2762</issn><issn>1432-0789</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kF9LHDEUxUOp4Nb6AXwLlEJfps2_2SSPslQtCH3RNyHcydwpkdlkzZ2l2k9v7EophUIgHPI7594cxs6k-CyFsF9ICG1NJ6TqxNq77vENW0mjm7LOv2UrIa3rlF2rY_aO6F4I2TvpV-xuA3UomW9Txgpz-gVLajJlTk1l5FTSTBzamSaMC458eOIVKY175LFsd4XSbwvkkf-EBSvflQXzkmB-z44mmAlPX-8Tdnvx9WZz1V1_v_y2Ob_uojH90qEZB5TCRxs99CaaUSnnwfcS3CAmIbXqVRRWqzgNxptp8KZ91_UWo4PB6RP26ZC7q-Vhj7SEbaKI8wwZy56C1H1LXFtnGvrhH_S-7Gtu2zVKOd2GrlWj5IGKtRBVnMKupi3UpyBFeOk7HPoOre_w0nd4bJ6Pr8lAEeapQo6J_hhb99IIrRunDhy1p_wD618b_Df8GVjGkFU</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Setia, Raj</creator><creator>Marschner, Petra</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SN</scope><scope>7T7</scope><scope>7UA</scope><scope>7X2</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>H95</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>LK8</scope><scope>M0K</scope><scope>M2P</scope><scope>M7P</scope><scope>P64</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope></search><sort><creationdate>20130101</creationdate><title>Carbon mineralization in saline soils as affected by residue composition and water potential</title><author>Setia, Raj ; Marschner, Petra</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-e4dbe109c7c9a54c4d2289a951a8b0f013252c0732cfb494fb94003857ec8ab83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Agriculture</topic><topic>Agronomy. Soil science and plant productions</topic><topic>Arid climates</topic><topic>Biochemistry and biology</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>Biomedical and Life Sciences</topic><topic>Carbon</topic><topic>Carbon dioxide emissions</topic><topic>Chemical, physicochemical, biochemical and biological properties</topic><topic>Crop residues</topic><topic>Emission measurements</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Life Sciences</topic><topic>Microbial activity</topic><topic>Microbiology</topic><topic>Mineralization</topic><topic>Mineralogy</topic><topic>Organic matter</topic><topic>Original Paper</topic><topic>Physics, chemistry, biochemistry and biology of agricultural and forest soils</topic><topic>Respiration</topic><topic>Saline soils</topic><topic>Salinity</topic><topic>Sandy loam</topic><topic>Sandy soils</topic><topic>Saturated soils</topic><topic>Semiarid climates</topic><topic>Soil science</topic><topic>Soil Science & Conservation</topic><topic>Soil solution</topic><topic>Soils</topic><topic>Triticum aestivum</topic><topic>Water</topic><topic>Water content</topic><topic>Water potential</topic><topic>Wheat</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Setia, Raj</creatorcontrib><creatorcontrib>Marschner, Petra</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Water Resources Abstracts</collection><collection>Agricultural Science Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Biology and fertility of soils</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Setia, Raj</au><au>Marschner, Petra</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Carbon mineralization in saline soils as affected by residue composition and water potential</atitle><jtitle>Biology and fertility of soils</jtitle><stitle>Biol Fertil Soils</stitle><date>2013-01-01</date><risdate>2013</risdate><volume>49</volume><issue>1</issue><spage>71</spage><epage>77</epage><pages>71-77</pages><issn>0178-2762</issn><eissn>1432-0789</eissn><coden>BFSOEE</coden><abstract>In saline soils under semi-arid climate, low matric and osmotic potential are the main stressors for microbes. But little is known about the impact of water potential (sum of matric and osmotic potential) and substrate composition on microbial activity and biomass in field collected saline soils. Three sandy loam soils with electrical conductivity of the saturated soil extract (EC
e
) 3.8, 11 and 21 dS m
−1
(hereafter referred to EC3.8, EC11 and EC21) were kept at optimal water content for 14 days. After this pre-incubation, the soils were either left at optimal water content or dried to achieve water potentials of −2.33, −2.82, −3.04 and −4.04 MPa. Then, the soils were amended with 20 g kg
−1
pea or wheat residue to increase nutrient supply. Carbon dioxide emission was measured over 14 days; microbial biomass C was measured at the end of the experiment. Cumulative respiration decreased with decreasing water potential and was significantly (
P
< 0.05) lower in soils at water potential −4 MPa than in soils at optimal water content. The effect of residue type on the response of cumulative respiration was inconsistent; with residue type having no effect in the saline soils (EC11 and EC21) whereas in the non-saline soil (EC3.8), the decrease in respiration with decreasing water potential was less with wheat than with pea residue. At a given water potential, the absolute and relative (in percentage of optimal water content) cumulative respiration was lower in the saline soils than in the non-saline soil. This can be explained by the lower osmotic potential and the smaller microbial biomass in the saline soils. However, even at a similar osmotic potential, cumulative respiration was higher in the non-saline soil. It can be concluded that high salt concentrations in the soil solution strongly reduce microbial activity even if the water content is relatively high. The stronger relative decrease in microbial activity in the saline soils at a given osmotic potential compared to the non-saline soil suggests that the small biomass in saline soils is less able to tolerate low osmotic potential. Hence, drying of soil will have a stronger negative effect on microbial activity in saline than in non-saline soils.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s00374-012-0698-x</doi><tpages>7</tpages></addata></record> |
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| subjects | Agriculture Agronomy. Soil science and plant productions Arid climates Biochemistry and biology Biological and medical sciences Biomass Biomedical and Life Sciences Carbon Carbon dioxide emissions Chemical, physicochemical, biochemical and biological properties Crop residues Emission measurements Fundamental and applied biological sciences. Psychology Life Sciences Microbial activity Microbiology Mineralization Mineralogy Organic matter Original Paper Physics, chemistry, biochemistry and biology of agricultural and forest soils Respiration Saline soils Salinity Sandy loam Sandy soils Saturated soils Semiarid climates Soil science Soil Science & Conservation Soil solution Soils Triticum aestivum Water Water content Water potential Wheat |
| title | Carbon mineralization in saline soils as affected by residue composition and water potential |
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