Dataset Information

Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions.

ABSTRACT: A decline in pasture productivity is often associated with a reduction in vegetative cover. We hypothesize that nitrogen (N) in urine deposited by grazing cattle on degraded pastures, with low vegetative cover, is highly susceptible to losses. Here, we quantified the magnitude of urine-based nitrous oxide (N2O) lost from soil under paired degraded (low vegetative cover) and non-degraded (adequate vegetative cover) pastures across five countries of the Latin America and the Caribbean (LAC) region and estimated urine-N emission factors. Soil N2O emissions from simulated cattle urine patches were quantified with closed static chambers and gas chromatography. At the regional level, rainy season cumulative N2O emissions (3.31 versus 1.91?kg N2O-N ha-1) and emission factors (0.42 versus 0.18%) were higher for low vegetative cover compared to adequate vegetative cover pastures. Findings indicate that under rainy season conditions, adequate vegetative cover through proper pasture management could help reduce urine-induced N2O emissions from grazed pastures.

SUBMITTER: Chirinda N

PROVIDER: S-EPMC6351538 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions.

Chirinda Ngonidzashe N Loaiza Sandra S Arenas Laura L Ruiz Verónica V Faverín Claudia C Alvarez Carolina C Savian Jean Víctor JV Belfon Renaldo R Zuniga Karen K Morales-Rincon Luis Alberto LA Trujillo Catalina C Arango Miguel M Rao Idupulapati I Arango Jacobo J Peters Michael M Barahona Rolando R Costa Ciniro C Rosenstock Todd S TS Richards Meryl M Martinez-Baron Deissy D Cardenas Laura L

Scientific reports 20190129 1

A decline in pasture productivity is often associated with a reduction in vegetative cover. We hypothesize that nitrogen (N) in urine deposited by grazing cattle on degraded pastures, with low vegetative cover, is highly susceptible to losses. Here, we quantified the magnitude of urine-based nitrous oxide (N<sub>2</sub>O) lost from soil under paired degraded (low vegetative cover) and non-degraded (adequate vegetative cover) pastures across five countries of the Latin America and the Caribbean ( ...[more]

PMID: 30696896

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Dataset Information

Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions.

Publications

Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions.

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