Changes in dunefield geomorphology and vegetation cover as a response to local and regional climate variations

被引：32

作者：

da Silva, Graziela Miot ^{[1
]}

Martinho, Caroline Thais ^{[2
]}

Hesp, Patrick ^{[1
]}

Keim, Barry D. ^{[3
]}

Ferligoj, Yanina ^{[4
]}

机构：

[1] Flinders Univ S Australia, Fac Sci & Engn, Sch Environm, Adelaide, SA 5001, Australia

[2] PUCRS Pontifical Catholic Univ Rio Grande Sul, CEPAC, BR-90619900 Porto Alegre, RS, Brazil

[3] Louisiana State Univ, Dept Geog & Anthropol, Louisiana Off State Climatol, Baton Rouge, LA 70803 USA

[4] Univ Salvador, Fac Hist Geog & Turismo, Escuela Geog & Ciencias Ambientales, Buenos Aires, DF, Argentina

来源：

JOURNAL OF COASTAL RESEARCH | 2013年

关键词：

Dunefield stabilization; vegetation; ENSO; Pacific Decadal Oscillation; PACIFIC DECADAL OSCILLATION; SEA-SURFACE TEMPERATURE; SOUTHERN BRAZIL; EL-NINO; ANOMALIES; EPISODE; IMPACTS; FIELDS; WIND;

D O I：

10.2112/SI65.221.1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Published analyses of aerial photographs show a marked increase in vegetation cover of coastal transgressive dunefields along the Southern Brazilian Holocene Barrier around the late 1970s. This phenomenon is reflecting an increase in precipitation and a decrease in aeolian sediment transport. These climatic changes are associated with recurring high intensity El Nino events related to the 1976/1977 regime shift of the Pacific Decadal Oscillation (PDO).

引用

页码：1307 / 1312

页数：6

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