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Lanzhou University (2009)

The Influencing Mechanism of Xeric Shrubs on Medium and Trace Elements in Alxa Desert

任伟; Ren Wei

Titre : The Influencing Mechanism of Xeric Shrubs on Medium and Trace Elements in Alxa Desert

Auteur : 任伟; Ren Wei

Grade : Master’s Theses 2009

Université : Lanzhou University

Résumé partiel
The "fertile island" characteristics of 7 desert shrubs(i.e.Zygophyllum xanthoxylum, Nitraria tangutorum,Reaumuria soongorica,Ammopiptanthus mongolicu,Atraphaxia bracteata,Haloxylon ammodendron,Ceratoides lateens) in Alxa were investigated.We studied at various angles,such as in different parts of each shrub,at different depths,from the horizontal and vertical directions as well as the different elements on the same shrub and different shrubs on the same element.The results revealed as follows.(1)The total Cu was accumulated in the 0-10cm soil layer of Zygophyllum xanthoxylum,the contents of other elements were as follows:under the shrub

Mots clés : desert shrub; fertile island; rhizosphere effect; medium elements; trace elements;

Présentation (CNKI)

Page publiée le 9 septembre 2014, mise à jour le 14 février 2018