Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria
Summary In highly weathered tropical conditions, soil organic matter is important for soil quality and productivity. We evaluated the effects of deforestation and subsequent arable cropping on the qualitative and quantitative transformation of the humic pool of the soil at three locations in Nigeria...
Gespeichert in:
| Veröffentlicht in: | European journal of soil science 2005-06, Vol.56 (3), p.343-352 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 352 |
|---|---|
| container_issue | 3 |
| container_start_page | 343 |
| container_title | European journal of soil science |
| container_volume | 56 |
| creator | Piccolo, A Conte, P Spaccini, R Mbagwu, J.S.C |
| description | Summary
In highly weathered tropical conditions, soil organic matter is important for soil quality and productivity. We evaluated the effects of deforestation and subsequent arable cropping on the qualitative and quantitative transformation of the humic pool of the soil at three locations in Nigeria. Cultivation reduced the humic pool in the order: acetone‐soluble hydrophobic fraction (HE) > humic acid (HA) > humin (HU) > fulvic acid (FA), but not to the same degree at all three sites. The C and N contents, as well as the C/N ratios of humic extracts, were large and not substantially influenced by land use. The δ13C values of the humic extracts were invariably more negative in forested soils thereby showing a dilution of δ13C signature with cultivation from C3 to C4 plants. The δ13C values of apolar HE fractions were generally more negative, indicating a reduced sensitivity compared with other humic fractions to turnover of crop residues. The contents of hydrophobic constituents (alkyl and aromatic C), as revealed by cross‐polarization magic angle spinning (CPMAS) 13C‐NMR spectroscopy, in HA, FA and HU were generally |
| doi_str_mv | 10.1111/j.1365-2389.2004.00671.x |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_28589354</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>28589354</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4981-3f7a57ae17bcfe29306c7804e85662a6efd83f03d11a1d09976f58914b2e0f323</originalsourceid><addsrcrecordid>eNqNks1u1DAUhSMEEmXgGfAGdgl2_L9ggYbSKYrKYqhYWh6P3fGQSQY7Uadvz01TtcvWG1_L37mWz7lFgQiuCKwv-4pQwcuaKl3VGLMKYyFJdXpVnD1evJ5qTkosOXtbvMt5jzGhROuzYnPZhXb0nfOoD6i13RaNGeoODTuP3M4m6wafYh6iyxOyGw_RoTxu8mBBlVHsUO4PHg2pP0ZnWzjF9h69ijegtO-LN8G22X942BfF9Y_z38tV2fy6uFx-a0rHtCIlDdJyaT2RGxd8rSkWTirMvOJC1Fb4sFU0YLolxJIt1lqKwJUmbFN7HGhNF8Xnue8x9f9GnwdziNn5Fj7l-zGbWgFOOXsWBGMYwQQ_DzLJGNcSQDWDLvU5Jx_MMcWDTXeGYDPFZPZmSsNMaZgpJnMfkzmB9NPDGzaDeyGBqzE_6YVkSoAbi-LrzN3G1t-9uL85_7leQwX6ctZDlP70qLfprxGSSm7-XF2YZvVdL5sVNg3wH2c-2N7YG5gAc72uYWzAGEw4p_Q_W6e9cg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>14744597</pqid></control><display><type>article</type><title>Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria</title><source>Access via Wiley Online Library</source><creator>Piccolo, A ; Conte, P ; Spaccini, R ; Mbagwu, J.S.C</creator><creatorcontrib>Piccolo, A ; Conte, P ; Spaccini, R ; Mbagwu, J.S.C</creatorcontrib><description>Summary
In highly weathered tropical conditions, soil organic matter is important for soil quality and productivity. We evaluated the effects of deforestation and subsequent arable cropping on the qualitative and quantitative transformation of the humic pool of the soil at three locations in Nigeria. Cultivation reduced the humic pool in the order: acetone‐soluble hydrophobic fraction (HE) > humic acid (HA) > humin (HU) > fulvic acid (FA), but not to the same degree at all three sites. The C and N contents, as well as the C/N ratios of humic extracts, were large and not substantially influenced by land use. The δ13C values of the humic extracts were invariably more negative in forested soils thereby showing a dilution of δ13C signature with cultivation from C3 to C4 plants. The δ13C values of apolar HE fractions were generally more negative, indicating a reduced sensitivity compared with other humic fractions to turnover of crop residues. The contents of hydrophobic constituents (alkyl and aromatic C), as revealed by cross‐polarization magic angle spinning (CPMAS) 13C‐NMR spectroscopy, in HA, FA and HU were generally < 50%, with the exception of larger hydrophobicity in HU in the forested soil at Nsukka and HA in that at Umudike. The HE fraction contained significantly more apolar constituents, and consequently had a larger intrinsic hydrophobicity than the other humic fractions. The larger reduction of apolar humic constituents than of the less hydrophobic humic fractions, when these soils were deforested for cultivation, indicates that at those sites the stability of accumulated organic matter is to be ascribed mainly to the selective preservation of hydrophobic compounds.</description><identifier>ISSN: 1351-0754</identifier><identifier>EISSN: 1365-2389</identifier><identifier>DOI: 10.1111/j.1365-2389.2004.00671.x</identifier><language>eng</language><publisher>Oxford, UK; Malden, USA: Blackwell Science Ltd</publisher><subject>Agronomy. Soil science and plant productions ; arable soils ; Biological and medical sciences ; Chemical, physicochemical, biochemical and biological properties ; deforestation ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; forest soils ; Fundamental and applied biological sciences. Psychology ; Geochemistry ; humic substances ; hydrophobicity ; land use ; Organic matter ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; Soil and rock geochemistry ; soil organic matter ; Soil science ; Soils ; spectral analysis ; Surficial geology ; tropical soils</subject><ispartof>European journal of soil science, 2005-06, Vol.56 (3), p.343-352</ispartof><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4981-3f7a57ae17bcfe29306c7804e85662a6efd83f03d11a1d09976f58914b2e0f323</citedby><cites>FETCH-LOGICAL-c4981-3f7a57ae17bcfe29306c7804e85662a6efd83f03d11a1d09976f58914b2e0f323</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1365-2389.2004.00671.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1365-2389.2004.00671.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,27929,27930,45579,45580</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16748629$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Piccolo, A</creatorcontrib><creatorcontrib>Conte, P</creatorcontrib><creatorcontrib>Spaccini, R</creatorcontrib><creatorcontrib>Mbagwu, J.S.C</creatorcontrib><title>Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria</title><title>European journal of soil science</title><description>Summary
In highly weathered tropical conditions, soil organic matter is important for soil quality and productivity. We evaluated the effects of deforestation and subsequent arable cropping on the qualitative and quantitative transformation of the humic pool of the soil at three locations in Nigeria. Cultivation reduced the humic pool in the order: acetone‐soluble hydrophobic fraction (HE) > humic acid (HA) > humin (HU) > fulvic acid (FA), but not to the same degree at all three sites. The C and N contents, as well as the C/N ratios of humic extracts, were large and not substantially influenced by land use. The δ13C values of the humic extracts were invariably more negative in forested soils thereby showing a dilution of δ13C signature with cultivation from C3 to C4 plants. The δ13C values of apolar HE fractions were generally more negative, indicating a reduced sensitivity compared with other humic fractions to turnover of crop residues. The contents of hydrophobic constituents (alkyl and aromatic C), as revealed by cross‐polarization magic angle spinning (CPMAS) 13C‐NMR spectroscopy, in HA, FA and HU were generally < 50%, with the exception of larger hydrophobicity in HU in the forested soil at Nsukka and HA in that at Umudike. The HE fraction contained significantly more apolar constituents, and consequently had a larger intrinsic hydrophobicity than the other humic fractions. The larger reduction of apolar humic constituents than of the less hydrophobic humic fractions, when these soils were deforested for cultivation, indicates that at those sites the stability of accumulated organic matter is to be ascribed mainly to the selective preservation of hydrophobic compounds.</description><subject>Agronomy. Soil science and plant productions</subject><subject>arable soils</subject><subject>Biological and medical sciences</subject><subject>Chemical, physicochemical, biochemical and biological properties</subject><subject>deforestation</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>forest soils</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Geochemistry</subject><subject>humic substances</subject><subject>hydrophobicity</subject><subject>land use</subject><subject>Organic matter</subject><subject>Physics, chemistry, biochemistry and biology of agricultural and forest soils</subject><subject>Soil and rock geochemistry</subject><subject>soil organic matter</subject><subject>Soil science</subject><subject>Soils</subject><subject>spectral analysis</subject><subject>Surficial geology</subject><subject>tropical soils</subject><issn>1351-0754</issn><issn>1365-2389</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNks1u1DAUhSMEEmXgGfAGdgl2_L9ggYbSKYrKYqhYWh6P3fGQSQY7Uadvz01TtcvWG1_L37mWz7lFgQiuCKwv-4pQwcuaKl3VGLMKYyFJdXpVnD1evJ5qTkosOXtbvMt5jzGhROuzYnPZhXb0nfOoD6i13RaNGeoODTuP3M4m6wafYh6iyxOyGw_RoTxu8mBBlVHsUO4PHg2pP0ZnWzjF9h69ijegtO-LN8G22X942BfF9Y_z38tV2fy6uFx-a0rHtCIlDdJyaT2RGxd8rSkWTirMvOJC1Fb4sFU0YLolxJIt1lqKwJUmbFN7HGhNF8Xnue8x9f9GnwdziNn5Fj7l-zGbWgFOOXsWBGMYwQQ_DzLJGNcSQDWDLvU5Jx_MMcWDTXeGYDPFZPZmSsNMaZgpJnMfkzmB9NPDGzaDeyGBqzE_6YVkSoAbi-LrzN3G1t-9uL85_7leQwX6ctZDlP70qLfprxGSSm7-XF2YZvVdL5sVNg3wH2c-2N7YG5gAc72uYWzAGEw4p_Q_W6e9cg</recordid><startdate>200506</startdate><enddate>200506</enddate><creator>Piccolo, A</creator><creator>Conte, P</creator><creator>Spaccini, R</creator><creator>Mbagwu, J.S.C</creator><general>Blackwell Science Ltd</general><general>Blackwell Science</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7U6</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>200506</creationdate><title>Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria</title><author>Piccolo, A ; Conte, P ; Spaccini, R ; Mbagwu, J.S.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4981-3f7a57ae17bcfe29306c7804e85662a6efd83f03d11a1d09976f58914b2e0f323</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>arable soils</topic><topic>Biological and medical sciences</topic><topic>Chemical, physicochemical, biochemical and biological properties</topic><topic>deforestation</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>forest soils</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Geochemistry</topic><topic>humic substances</topic><topic>hydrophobicity</topic><topic>land use</topic><topic>Organic matter</topic><topic>Physics, chemistry, biochemistry and biology of agricultural and forest soils</topic><topic>Soil and rock geochemistry</topic><topic>soil organic matter</topic><topic>Soil science</topic><topic>Soils</topic><topic>spectral analysis</topic><topic>Surficial geology</topic><topic>tropical soils</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Piccolo, A</creatorcontrib><creatorcontrib>Conte, P</creatorcontrib><creatorcontrib>Spaccini, R</creatorcontrib><creatorcontrib>Mbagwu, J.S.C</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>European journal of soil science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Piccolo, A</au><au>Conte, P</au><au>Spaccini, R</au><au>Mbagwu, J.S.C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria</atitle><jtitle>European journal of soil science</jtitle><date>2005-06</date><risdate>2005</risdate><volume>56</volume><issue>3</issue><spage>343</spage><epage>352</epage><pages>343-352</pages><issn>1351-0754</issn><eissn>1365-2389</eissn><abstract>Summary
In highly weathered tropical conditions, soil organic matter is important for soil quality and productivity. We evaluated the effects of deforestation and subsequent arable cropping on the qualitative and quantitative transformation of the humic pool of the soil at three locations in Nigeria. Cultivation reduced the humic pool in the order: acetone‐soluble hydrophobic fraction (HE) > humic acid (HA) > humin (HU) > fulvic acid (FA), but not to the same degree at all three sites. The C and N contents, as well as the C/N ratios of humic extracts, were large and not substantially influenced by land use. The δ13C values of the humic extracts were invariably more negative in forested soils thereby showing a dilution of δ13C signature with cultivation from C3 to C4 plants. The δ13C values of apolar HE fractions were generally more negative, indicating a reduced sensitivity compared with other humic fractions to turnover of crop residues. The contents of hydrophobic constituents (alkyl and aromatic C), as revealed by cross‐polarization magic angle spinning (CPMAS) 13C‐NMR spectroscopy, in HA, FA and HU were generally < 50%, with the exception of larger hydrophobicity in HU in the forested soil at Nsukka and HA in that at Umudike. The HE fraction contained significantly more apolar constituents, and consequently had a larger intrinsic hydrophobicity than the other humic fractions. The larger reduction of apolar humic constituents than of the less hydrophobic humic fractions, when these soils were deforested for cultivation, indicates that at those sites the stability of accumulated organic matter is to be ascribed mainly to the selective preservation of hydrophobic compounds.</abstract><cop>Oxford, UK; Malden, USA</cop><pub>Blackwell Science Ltd</pub><doi>10.1111/j.1365-2389.2004.00671.x</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1351-0754 |
| ispartof | European journal of soil science, 2005-06, Vol.56 (3), p.343-352 |
| issn | 1351-0754 1365-2389 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28589354 |
| source | Access via Wiley Online Library |
| subjects | Agronomy. Soil science and plant productions arable soils Biological and medical sciences Chemical, physicochemical, biochemical and biological properties deforestation Earth sciences Earth, ocean, space Exact sciences and technology forest soils Fundamental and applied biological sciences. Psychology Geochemistry humic substances hydrophobicity land use Organic matter Physics, chemistry, biochemistry and biology of agricultural and forest soils Soil and rock geochemistry soil organic matter Soil science Soils spectral analysis Surficial geology tropical soils |
| title | Influence of land use on the characteristics of humic substances in some tropical soils of Nigeria |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-13T03%3A12%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Influence%20of%20land%20use%20on%20the%20characteristics%20of%20humic%20substances%20in%20some%20tropical%20soils%20of%20Nigeria&rft.jtitle=European%20journal%20of%20soil%20science&rft.au=Piccolo,%20A&rft.date=2005-06&rft.volume=56&rft.issue=3&rft.spage=343&rft.epage=352&rft.pages=343-352&rft.issn=1351-0754&rft.eissn=1365-2389&rft_id=info:doi/10.1111/j.1365-2389.2004.00671.x&rft_dat=%3Cproquest_cross%3E28589354%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=14744597&rft_id=info:pmid/&rfr_iscdi=true |