干旱区生态环境知识资源中心(Arid): Higher sediment redistribution rates related to burrowing animals than previously assumed as revealed by time-of-flight-based monitoring

Arid

DOI	10.5194/esurf-10-1273-2022
	Higher sediment redistribution rates related to burrowing animals than previously assumed as revealed by time-of-flight-based monitoring
	Grigusova, Paulina; Larsen, Annegret; Achilles, Sebastian; Brandl, Roland; del Rio, Camilo; Farwig, Nina; Kraus, Diana; Paulino, Leandro; Pliscoff, Patricio; Uebernickel, Kirstin; Bendix, Joerg
通讯作者	Grigusova, P
来源期刊	EARTH SURFACE DYNAMICS
ISSN	2196-6311
EISSN	2196-632X
出版年	2022
卷号	10 期号:6 页码:1273-1301
英文摘要	Burrowing animals influence surface microtopography and hillslope sediment redistribution, but changes often remain undetected due to a lack of automated high-resolution field monitoring techniques. In this study, we present a new approach to quantify microtopographic variations and surface changes caused by burrowing animals and rainfall-driven erosional processes applied to remote field plots in arid and Mediterranean climate regions in Chile. We compared the mass balance of redistributed sediment between burrow and burrow-embedded area, quantified the cumulative sediment redistribution caused by animals and rainfall, and upscaled the results to a hillslope scale. The newly developed instrument, a time-of-flight camera, showed a very good detection accuracy. The animal-caused cumulative sediment excavation was 14.6 cm(3) cm(-2) yr(-1) in the Mediterranean climate zone and 16.4 cm(3) cm(-2) yr(-1) in the arid climate zone. The rainfall-related cumulative sediment erosion within burrows was higher (10.4 cm(3) cm(-2) yr(-1)) in the Mediterranean climate zone than the arid climate zone (1.4 cm(3) cm(-2) yr(-1)). Daily sediment redistribution during rainfall within burrow areas was up to 350 %(40 %) higher in the Mediterranean (arid) zone compared to burrow-embedded areas and much higher than previously reported in studies that were not based on continuous microtopographic monitoring. A total of 38 % of the sediment eroding from burrows accumulated within the burrow entrance, while 62 % was incorporated into hillslope sediment flux, which exceeds previous estimations 2-fold. On average, animals burrowed between 1.2-2.3 times a month, and the burrowing intensity increased after rainfall. This revealed a newly detected feedback mechanism between rainfall, erosion, and animal burrowing activity, likely leading to an underestimation of animal-triggered hillslope sediment flux in wetter climates. Our findings hence show that the rate of sediment redistribution due to animal burrowing is dependent on climate and that animal burrowing plays a larger than previously expected role in hillslope sediment redistribution. Subsequently, animal burrowing activity should be incorporated into soil erosion and landscape evolution models that rely on soil processes but do not yet include animal-induced surface processes on microtopographical scales in their algorithms.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000902073400001
WOS关键词	SMALL-SCALE OBSERVATION ; SOIL-EROSION ; SOUTH-AMERICA ; SURFACE RECONSTRUCTION ; MOLE CRICKETS ; PLATEAU PIKA ; TRANSPORT ; BIOTURBATION ; PATTERNS ; CLIMATE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392264
推荐引用方式 GB/T 7714	Grigusova, Paulina,Larsen, Annegret,Achilles, Sebastian,et al. Higher sediment redistribution rates related to burrowing animals than previously assumed as revealed by time-of-flight-based monitoring[J],2022,10(6):1273-1301.
APA	Grigusova, Paulina.,Larsen, Annegret.,Achilles, Sebastian.,Brandl, Roland.,del Rio, Camilo.,...&Bendix, Joerg.(2022).Higher sediment redistribution rates related to burrowing animals than previously assumed as revealed by time-of-flight-based monitoring.EARTH SURFACE DYNAMICS,10(6),1273-1301.
MLA	Grigusova, Paulina,et al."Higher sediment redistribution rates related to burrowing animals than previously assumed as revealed by time-of-flight-based monitoring".EARTH SURFACE DYNAMICS 10.6(2022):1273-1301.