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

被引：31
|
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
收藏
页码：1307 / 1312
页数：6
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