Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1006/jare.1996.0236 |
Impact of increased aridity on sand dune activity in the Canadian Prairies | |
Wolfe, SA | |
通讯作者 | Wolfe, SA |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
出版年 | 1997 |
卷号 | 36期号:3页码:421-432 |
英文摘要 | The possible impact of increased aridity on sand dune activity on the Canadian Prairies is evaluated by comparing dune mobility indices for the period 1961-1990 to those for the 1988 drought year. The 30-year mean mobility indices, with P:PE ratios ranging from 0.50 to 0.90, indicate dunes to be presently either inactive or having only crests active. Using a scenario in which drought conditions of 1988 were prolonged, dune activity in the region is predicted to increase with the most arid localities having active dunes accompanied by vegetated interdune areas. The central region of the prairies would have a semi-arid rather than sub-humid climate, with P:PE ratios as low as 0.30. Despite the increase in aridity, sand dunes in the region would most likely remain parabolic. (C) 1997 Academic Press Limited. |
英文关键词 | aeolian sand dunes climate change aridity drought mobility index |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:A1997XJ42200003 |
WOS关键词 | GENERAL-CIRCULATION MODEL ; GREAT-PLAINS ; CLIMATE ; PRECIPITATION ; USA |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/134462 |
推荐引用方式 GB/T 7714 | Wolfe, SA. Impact of increased aridity on sand dune activity in the Canadian Prairies[J],1997,36(3):421-432. |
APA | Wolfe, SA.(1997).Impact of increased aridity on sand dune activity in the Canadian Prairies.JOURNAL OF ARID ENVIRONMENTS,36(3),421-432. |
MLA | Wolfe, SA."Impact of increased aridity on sand dune activity in the Canadian Prairies".JOURNAL OF ARID ENVIRONMENTS 36.3(1997):421-432. |
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