Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/esp.4457 |
Elevated aeolian sediment transport on the Colorado Plateau, USA: The role of grazing, vehicle disturbance, and increasing aridity | |
Nauman, Travis W.1; Duniway, Michael C.1; Webb, Nicholas P.2; Belnap, Jayne1![]() | |
通讯作者 | Nauman, Travis W. |
来源期刊 | EARTH SURFACE PROCESSES AND LANDFORMS
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ISSN | 0197-9337 |
EISSN | 1096-9837 |
出版年 | 2018 |
卷号 | 43期号:14页码:2897-2914 |
英文摘要 | Dryland wind transport of sediment can accelerate soil erosion, degrade air quality, mobilize dunes, decrease water supply, and damage infrastructure. We measured aeolian sediment horizontal mass flux (q) at 100 cm height using passive aspirated sediment traps to better understand q variability on the Colorado Plateau. Measured q hot spots’ rival the highest ever recorded including 7,460 g m(-2) day(-1) in an off-highway vehicle (OHV) area, but were more commonly 50-2,000 g m(-2) day(-1). Overall mean q on rangeland sites was 5.14 g m(-2) day(-1), considerably lower than areas with concentrated livestock use (9-19 g m(-2) day(-1)), OHV use (414 g m(-2) day(-1)), and downwind of unpaved roads (13.14 g m(-2) day(-1)), but were higher than areas with minimal soil disturbance (1.60 g m(-2) day(-1)). Rangeland q increased with increasing annual temperature, increased winds, and decreasing precipitation. Spatial modeling suggests that 92-93% of regional q occurs in rangelands versus 7-8% along unpaved roads. Four of the five largest road q values (n=33) measured were along roads used primarily for oil or gas wells. Our findings indicate that predicted future mega-droughts will increase q disproportionately in disturbed rangelands, and potentially further compromise air quality, hydrologic cycles, and other ecosystem services. Published 2018. This article is a U.S. Government work and is in the public domain in the USA. |
英文关键词 | particulates land use aeolian transport mapping off-highway vehicles accelerated erosion drought fugitive dust wind erosion |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000452564400005 |
WOS关键词 | AUTOMATED REFERENCE TOOLSET ; WIND EROSION PREDICTION ; BIOLOGICAL SOIL CRUSTS ; UNITED-STATES ; DUST DEPOSITION ; LAND-COVER ; DESERT ; ERODIBILITY ; MANAGEMENT ; EMISSIONS |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208638 |
作者单位 | 1.US Geol Survey, Southwest Biol Sci Ctr, 2290 SW Resource Blvd, Moab, UT 84532 USA; 2.USDA ARS, Jornada Expt Range, NMSU, POB 30003,MSC 3JER, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Nauman, Travis W.,Duniway, Michael C.,Webb, Nicholas P.,et al. Elevated aeolian sediment transport on the Colorado Plateau, USA: The role of grazing, vehicle disturbance, and increasing aridity[J]. United States Geological Survey,2018,43(14):2897-2914. |
APA | Nauman, Travis W.,Duniway, Michael C.,Webb, Nicholas P.,&Belnap, Jayne.(2018).Elevated aeolian sediment transport on the Colorado Plateau, USA: The role of grazing, vehicle disturbance, and increasing aridity.EARTH SURFACE PROCESSES AND LANDFORMS,43(14),2897-2914. |
MLA | Nauman, Travis W.,et al."Elevated aeolian sediment transport on the Colorado Plateau, USA: The role of grazing, vehicle disturbance, and increasing aridity".EARTH SURFACE PROCESSES AND LANDFORMS 43.14(2018):2897-2914. |
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