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Flood regime affects soil stoichiometry and the distribution of the invasive plants in subtropical estuarine wetlands in China
Wang, W. (Fujian shi fan da xue. Institute of Geography)
Wang, Chun (Fujian shi fan da xue. Institute of Geography)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals)
Tong, Chuan (Fujian shi fan da xue. Institute of Geography)
Jia, Ruixia (Fujian shi fan da xue. Institute of Geography)
Zeng, C. (Fujian shi fan da xue. Institute of Geography)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)

Date: 2015
Abstract: Projections of climate change impacts over the coming decades suggest that rising sea levels will flood coastal wetlands, moving the range of wetlands inland from the current coastline. The intensity of flooding in wetland areas will thus increase, with corresponding impacts on soil properties and coastal ecosystems. We studied the impacts of two levels of water inundation on the concentration and stoichiometry of soil carbon, nitrogen, phosphorus and sulfur in areas dominated by the native C3 species Scirpus triqueter L. , the native C4 species Cyperus malaccensis var. brevifolius Boecklr. and the invasive Gramineae C3 species Phragmites australis (Cav. ) Trin. ex Steud in the Shanyutan wetland areas of the Minjiang River estuary in China. Comparison of the communities dominated by these three species in high- and low-water flood habitats showed that flooding enhanced anaerobiosis and salinity and altered the carbon and nitrogen plant–soil cycles. Higher flooding favored the invasive species more than the two native species. The invasive P. australis accumulated more carbon (65% increase in aboveground biomass), and took up more nitrogen under high flooding than did C. malaccensis and S. triqueter. The more conservative use of soil resources, particularly the limiting nutrient N, appeared to underlie the higher capacity of the invasive species to tolerate higher flooding intensity. Increases in flooding may thus enhance the success and expansion of the invasive P. australis to the detriment of the native plant species in these Chinese wetlands.
Note: Número d'acord de subvenció EC/FP7/610028
Note: Número d'acord de subvenció MINECO/CGL2013-48074-P
Note: Número d'acord de subvenció AGAUR/2014/SGR-274
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; acceptedVersion
Subject: China ; Climate change ; Ocean level ; Plant invasion ; Stoichiometry ; Wetland
Published in: Catena, Vol. 128 (May 2015) , p. 144-154, ISSN 0341-8162

DOI: 10.1016/j.catena.2015.01.017

42 p, 959.0 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles

 Record created 2015-02-09, last modified 2019-02-03

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