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(Article of periodic en Anglais - 2011)

Document title

Effect of vegetation coverage on aeolian dust accumulation in a semiarid steppe of northern China

Authors(s) and Affiliation(s)

YAN Y. (1 2) ; XU X. (3) ; XIN X. (1 2) ; YANG R. (1 2) ; CHEN B. (1 2) ;
(1) Hulunber State Station of Grassland Ecosystem Field Observation and Scientific Research, Dep. of Grassland Sciences, Key Lab. of Resources Remote Sensing and Digital Agriculture, Ministry of Agriculture, CHINE
(2) Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, CHINE
(3) Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, CHINE

Abstract

The AA. conducted a field experiment to investigate the effects of vegetation coverage on airborne dust accumulation and evaluated effects of dust input on the contribution of nutrients to vegetation-mulched fields. Five vegetation coverage treatments (15%, 35%, 55%, 75% and 95%) were constructed, with 0% coverage as a control. Vegetation coverage significantly affected dust accumulation in degenerated semiarid grasslands. The particles in the dust trapped by treatment without vegetation coverage were significantly coarser than those by treatments with vegetation. In addition, the dust trapped by treatments with vegetation contained more organic carbon, nitrogen and phosphorus content than that by the control plot. This finding indicates that areas with higher vegetation coverage can obtain more nutrients by trapping airborne dust in semiarid steppes

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2011, vol. 87, no3 [pp. 351-356]

Bibliographic references : 40 ref.

Collation : 4 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.07.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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