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Using soil organic matter fractions as indicators of soil physical quality

The objective of this study was to evaluate the use of chemical and physical fractions of soil organic matter (SOM), rather than SOM per se, as indicators of soil physical quality (SPQ) based on their effect on aggregate stability (AS). Chemically extracted humic and fulvic acids (HA and FA) were us...

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Published: 2021
Subjects:
Aggregate stability
soil quality
chemical and physical fractions
Online Access:http://hdl.handle.net/10872/21413
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bitstream.url.fl_str_mv https://saber.ucv.ve/jspui/bitstream/10872/21413/1/2018.%20Pulido-Moncada_et_al.%20Using%20soil%20organic%20matter%20fractions%20as%20indicators%20of%20soil%20physical%20quality.pdf
https://saber.ucv.ve/jspui/bitstream/10872/21413/2/license.txt
https://saber.ucv.ve/jspui/bitstream/10872/21413/3/2018.%20Pulido-Moncada_et_al.%20Using%20soil%20organic%20matter%20fractions%20as%20indicators%20of%20soil%20physical%20quality.pdf.txt
dc.contributor.author.none.fl_str_mv Pulido-Moncada, Mansonia
Lozano, Zenaida
Delgado, Mavelis
Van Ranst, Erick
Lobo, Deyanira
Gabriels, Donald
Cornelis, Wim
dc.creator.fl_str_mv Pulido-Moncada, Mansonia
Lozano, Zenaida
Delgado, Mavelis
Van Ranst, Erick
Lobo, Deyanira
Gabriels, Donald
Cornelis, Wim
dc.date.accessioned.none.fl_str_mv 2021-08-02T20:57:40Z
dc.date.available.none.fl_str_mv 2021-08-02T20:57:40Z
dc.date.issued.none.fl_str_mv 2021-08-02
dc.identifier.issn.none.fl_str_mv 1475-2743
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/10872/21413
dc.language.iso.en_US.fl_str_mv en
dc.subject.en_US.fl_str_mv Aggregate stability
soil quality
chemical and physical fractions
dc.title.en_US.fl_str_mv Using soil organic matter fractions as indicators of soil physical quality
dc.type.en_US.fl_str_mv Article
description The objective of this study was to evaluate the use of chemical and physical fractions of soil organic matter (SOM), rather than SOM per se, as indicators of soil physical quality (SPQ) based on their effect on aggregate stability (AS). Chemically extracted humic and fulvic acids (HA and FA) were used as chemical fractions, and heavy and light fractions (HF and LF) obtained by density separation as physical fractions. The analyses were conducted on medium-textured soils from tropical and temperate regions under cropland and pasture. Results show that soil organic carbon (SOC), SOM fractions and AS appear to be affected by land use regardless of the origin of the soils. A general separation of structurally stable and unstable soils between samples of large and small SOC content,respectively, was observed. SOM fractions did not show a better relationship with AS than SOC per se. In both geographical regions, soils under cropland showed the smallest content of SOC, HA and carbon concentration in LF and HF, and the largest HF/LF ratio (proportion of the HF and LF in percent by mass of bulk soil). With significant associations between AS and SOC content (0.79**),FA/SOC (r = 0.83**), HA/FA (r = 0.58**), carbon concentration of LF (r = 0.69**) and HF (r = 0.70**) and HF/LF ratio (r = 0.80**), cropland showed lowest AS. These associations indicate that SOM fractions provide information about differences in SOM quality in relation to AS and SPQ of soils from tropical and temperate regions under cropland and pasture.
id SABERUCV_95fc337ffed145461c01756d2ef0ce4e
identifier_str_mv 1475-2743
language_invalid_str_mv en
network_acronym_str SABERUCV
network_name_str Repositorio Institucional de la Universidad Central de Venezuela
oai_identifier_str oai:saber.ucv.ve:10872/21413
publishDate 2021
publishDateSort 2021
repository.mail.fl_str_mv sfwrussians@gmail.com
repository.name.fl_str_mv Saber UCV
repository_id_str
spelling Pulido-Moncada, MansoniaLozano, ZenaidaDelgado, MavelisVan Ranst, ErickLobo, DeyaniraGabriels, DonaldCornelis, Wim2021-08-02T20:57:40Z2021-08-02T20:57:40Z2021-08-021475-2743http://hdl.handle.net/10872/21413The objective of this study was to evaluate the use of chemical and physical fractions of soil organic matter (SOM), rather than SOM per se, as indicators of soil physical quality (SPQ) based on their effect on aggregate stability (AS). Chemically extracted humic and fulvic acids (HA and FA) were used as chemical fractions, and heavy and light fractions (HF and LF) obtained by density separation as physical fractions. The analyses were conducted on medium-textured soils from tropical and temperate regions under cropland and pasture. Results show that soil organic carbon (SOC), SOM fractions and AS appear to be affected by land use regardless of the origin of the soils. A general separation of structurally stable and unstable soils between samples of large and small SOC content,respectively, was observed. SOM fractions did not show a better relationship with AS than SOC per se. In both geographical regions, soils under cropland showed the smallest content of SOC, HA and carbon concentration in LF and HF, and the largest HF/LF ratio (proportion of the HF and LF in percent by mass of bulk soil). With significant associations between AS and SOC content (0.79**),FA/SOC (r = 0.83**), HA/FA (r = 0.58**), carbon concentration of LF (r = 0.69**) and HF (r = 0.70**) and HF/LF ratio (r = 0.80**), cropland showed lowest AS. These associations indicate that SOM fractions provide information about differences in SOM quality in relation to AS and SPQ of soils from tropical and temperate regions under cropland and pasture.enAggregate stabilitysoil qualitychemical and physical fractionsUsing soil organic matter fractions as indicators of soil physical qualityArticleORIGINAL2018. Pulido-Moncada_et_al. Using soil organic matter fractions as indicators of soil physical quality.pdf2018. Pulido-Moncada_et_al. Using soil organic matter fractions as indicators of soil physical quality.pdfapplication/pdf171083https://saber.ucv.ve/jspui/bitstream/10872/21413/1/2018.%20Pulido-Moncada_et_al.%20Using%20soil%20organic%20matter%20fractions%20as%20indicators%20of%20soil%20physical%20quality.pdfd9dfbf5c40d3d84d8782ac2629f4092eMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://saber.ucv.ve/jspui/bitstream/10872/21413/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXT2018. Pulido-Moncada_et_al. Using soil organic matter fractions as indicators of soil physical quality.pdf.txt2018. Pulido-Moncada_et_al. Using soil organic matter fractions as indicators of soil physical quality.pdf.txtExtracted texttext/plain48162https://saber.ucv.ve/jspui/bitstream/10872/21413/3/2018.%20Pulido-Moncada_et_al.%20Using%20soil%20organic%20matter%20fractions%20as%20indicators%20of%20soil%20physical%20quality.pdf.txt266bc29983730f7b534c6a60644853bbMD5310872/21413oai:saber.ucv.ve:10872/214132026-03-17 03:45:14.892Saber UCVsfwrussians@gmail.comTk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=
spellingShingle Using soil organic matter fractions as indicators of soil physical quality
Aggregate stability
soil quality
chemical and physical fractions
title Using soil organic matter fractions as indicators of soil physical quality
title_full Using soil organic matter fractions as indicators of soil physical quality
title_fullStr Using soil organic matter fractions as indicators of soil physical quality
title_full_unstemmed Using soil organic matter fractions as indicators of soil physical quality
title_short Using soil organic matter fractions as indicators of soil physical quality
title_sort Using soil organic matter fractions as indicators of soil physical quality
topic Aggregate stability
soil quality
chemical and physical fractions
url http://hdl.handle.net/10872/21413

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