Estuarine ecosystem function response to flood and drought in a shallow, semiarid estuary: Nitrogen cycling and ecosystem metabolism
نویسندگان
چکیده
منابع مشابه
The impact of precipitation change on nitrogen cycling in a semiarid ecosystem
in a semi-arid ecosystem Melissa A. Cregger*, Nate G. McDowell, Robert E. Pangle, William T. Pockman and Aim ee T. Classen Department of Ecology and Evolutionary Biology, University of Tennessee, 569 Dabney Hall, Knoxville, TN 37996, USA; Earth and Environmental Sciences, Los Alamos National Laboratory, MS-J495, Los Alamos, NM 87545, USA; and Department of Biology, University of New Mexico, Cas...
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Bacterial uptake or release of dissolved nitrogen compounds (amino nitrogen, urea, ammonium and nitrate) were examined in 0.8 pm filtered water from an estuary (Santa Rosa Sound [SRS], northwestern Florida) and an open-water location in the Gulf of Mexico (GM). The bacterial nutrient dynamics were related to oxygen consumption and activity of enzymes involved in nitrogen assimilation (glutamate...
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Drought is one of the most destructive natural disasters causing serious damages to human society, and studies have projected more severe and widespread droughts in the coming decades associated with the warming climate. Although several drought indices have been developed for drought monitoring, most of them were based on large scale environmental conditions rather than ecosystem transitional ...
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متن کاملMechanisms of plant species impacts on ecosystem nitrogen cycling
J. M. H. Knops,* K. L. Bradley and D. A. Wedin School of Biological Sciences, School of Natural Resource Sciences, University of Nebraska, 348 Manter Hall, Lincoln, NE 68588, USA. *Correspondence: E-mail: [email protected] Abstract Plant species are hypothesized to impact ecosystem nitrogen cycling in two distinctly different ways. First, differences in nitrogen use efficiency can lead to positiv...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 2013
ISSN: 0024-3590
DOI: 10.4319/lo.2013.58.6.2293