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001 20180711101639.0
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005 20190930165647.0
008 180711t2016 xxu|||||o|||| 00| 0 eng d
022 _a0266-0032
024 _a10.1111/sum.12293
040 _aAR-BaUFA
245 1 0 _aCatabolic response and phospholipid fatty acid profiles as microbial tools to assess soil functioning
520 _aMicrobial properties may help to provide an integrated view of changes in soil functioning associated with soil management or soil status. The fatty acid profiles of membrane phospholipids (PLFA) can give the composition of ecophysiological groups of soil microbial communities, while catabolic response profiles (CRP) estimate the heterotrophic functional diversity in soils, both relevant to the understanding of the role of micro-organisms in the functioning of the soil. The objectives of this study were (i) to evaluate the CRP and PLFA as microbial tools to characterize changes in soil functioning and (ii) clarify the relation among these microbial measurements, with other physical, chemical and biochemical soil properties. We compare the same soil subjected to different managements and degrees of erosion. An undisturbed soil (UN), an old pasture soil (OP) and soils under continuous cultivation (NT) with four different depth of A horizon: 25 cm (NT 25), 23 cm (NT 23), 19 cm (NT 19) and 14 cm (NT 14) were tested. Substrate-induced respiration of most substrates diminished when cropping pressure increased (UN major to OP major to NT), and soil catabolic evenness, as a diversity index, decreased by increasing production pressure and soil erosion. The correlation found among most of the measured physical, chemical and biochemical soil properties with the catabolic evenness showed the potential of this measurement to provide an integrated view of soil functioning. The PLFA analysis showed that the composition of microbial community denoting a partial recovery after 10 yr under grazed grassland. The stress indicators showed that farming practices increased microbial stress with the highest values found in the most eroded soils.
653 _aSOIL BIODIVERSITY
653 _aSOIL MICROBIAL INDICATORS
653 _aSOIL STATUS MONITORING
700 1 _aRomaniuk, Romina Ingrid
_uInstituto Nacional de Tecnología Agropecuaria (INTA). Hurlingham, Buenos Aires, Argentina.
_912589
700 _97396
_aCostantini, Alejandro Oscar
_uUniversidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Edafología. Buenos Aires, Argentina.
_uInstituto Nacional de Tecnología Agropecuaria (INTA). Hurlingham, Buenos Aires, Argentina.
700 1 _aGiuffré, Lidia L.
_uUniversidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Edafología. Buenos Aires, Argentina.
_912918
700 _943347
_aNannipieri, Paolo
_uUniversity of Firenze. Department of Soil Science and Plant Nutrition, Florence, Italy.
773 0 _tSoil Use and Management
_wSECS000171
_gVol.32, no.4 (2016), p.603–612, tbls., grafs.
856 _f2016romaniuk
_iEn Reservorio:
_qapplication/pdf
_uhttp://ri.agro.uba.ar/files/intranet/articulo/2016romaniuk.pdf
856 _u https://www.wiley.com
_zLINK AL EDITOR
942 _cARTICULO
942 _cENLINEA
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