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Herbaceous layer development during spring does not deplete soil nitrogen in the Portuguese montado

Title data

Otieno, Dennis Ochuodho ; Mirzaei, Heydar ; Hussain, Mir Zaman ; Li, Yanli ; Schmidt, Markus W. T. ; Wartinger, Margarete ; Jung, Eun-Young ; Ribeiro, Nuno ; Pereira, João Santos ; Tenhunen, John:
Herbaceous layer development during spring does not deplete soil nitrogen in the Portuguese montado.
In: Journal of Arid Environments. Vol. 75 (2011) Issue 3 . - pp. 231-238.
ISSN 0140-1963
DOI: https://doi.org/10.1016/j.jaridenv.2010.10.011

Abstract in another language

Nitrogen (N) content in the soil and in the herbaceous biomass were monitored during spring of 2004–2006 to determine how the herbaceous layer development influences soil N availability in the montado ecosystem of southern Portugal. Highest (246.6 ± 52.7 g m−2) and lowest (123.2 ± 89.5 g m−2) peak biomass occurred in 2006 and 2005 respectively. Total soil N within the top 20 cm soil profile ranged between 0.2 ± 0.1% in February and 0.41 ± 0.2% in May, while available soil N was lowest (5 ± 2 μg g−1soil) in February but increased three-to-five fold in March and was >17.5 μg g−1soil at senescence in May. Significant (p herbaceous plants were annuals with large reserves of organic N at senescence, which returned to the soil as detritus. The herbaceous vegetation is a critical component of the montado that contributes to N recharge and cycling within the ecosystem.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER151530
Keywords: Biomass development of the herbaceous vegetation; Mediterranean ecosystems; Portoguese montado; Pasture; Plant and soil nitrogen pools; Root distribution and nutrient uptake; Soil moisture
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors > Chair Plant Ecology - Univ.-Prof. John D. Tenhunen, Ph.D.
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professor Plant Ecology
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 28 Jan 2020 11:21
Last Modified: 13 May 2020 08:02
URI: https://eref.uni-bayreuth.de/id/eprint/54081