干旱区生态环境知识资源中心(Arid): Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA

Arid

DOI	10.1002/ldr.3207
	Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA
	Jeong, Ara; Dorn, Ronald I.
通讯作者	Jeong, Ara
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2019
卷号	30 期号:2 页码:226-238
英文摘要	Cattle stock ponds on the fringe of metropolitan Phoenix, USA, experienced a wide range of land-use changes over the period from 1989 to 2009. This research measures soil erosion from watersheds of different rock types, variable relief, and land uses. Monitoring sediment accumulation behind 18 earthen berms at each major land-use transition enabled calculations of soil erosion rates. Compared with the first decade of study with more precipitation and cattle grazing, accelerated urbanization in the drier second decade increased soil erosion from wildfires by up to 4.2x, from exposure of bare ground due to building construction by up to 3.4x, and from bare ground exposure due to road and pipeline construction by up to 3.1x overgrazing alone. Stock pond watersheds underlain by granite experienced statistically significant higher erosion rates compared with watersheds underlain by metamorphic, basalt, and other rock types. Global sediment yield data for warm desert (BWh Koppen-Geiger) sites reveal that our data plot consistently with other grazed study areas with a tendency for higher area-specific sediment yields in smaller drainage areas. These sediment yield data, however, do not support previously published generalizations of anomalously high or low sediment yields from warm desert settings. Desert urbanization processes accelerate soil erosion, resulting in the need for regulatory agencies to impose new erosion mitigation strategies.
英文关键词	desert climate erosion rates natural and anthropogenic causes of erosion road building urban sprawl
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000456201900010
WOS关键词	SEDIMENT YIELD ; URBAN-GROWTH ; RAINFALL ; IMPACT ; DEGRADATION ; VARIABILITY ; DYNAMICS ; PATTERNS ; LANDSAT ; CLIMATE
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217452
作者单位	Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ 85287 USA
推荐引用方式 GB/T 7714	Jeong, Ara,Dorn, Ronald I.. Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA[J]. Arizona State University,2019,30(2):226-238.
APA	Jeong, Ara,&Dorn, Ronald I..(2019).Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA.LAND DEGRADATION & DEVELOPMENT,30(2),226-238.
MLA	Jeong, Ara,et al."Soil erosion from urbanization processes in the Sonoran Desert, Arizona, USA".LAND DEGRADATION & DEVELOPMENT 30.2(2019):226-238.