Apportionment of suspended sediment sources in an agricultural watershed using sediment fingerprinting

Sources of fine sediment stored in agricultural lowland streams, Midwest, USA

“…The linkage between upland soil erosion and sediment and nutrient delivery to streams is complex because of multiple spatial and temporal scales of sediment delivery and associated lagtimes between when soil is eroded and when it reaches a stream (Meals et al, 2010). Sediment delivery to streams from uplands is influenced by land use type, spatial pattern of land use within a watershed, hillslope-to-river connectivity, management practices, soil type, and slope (Walling, 1983;Koiter et al, 2013a;Lamba et al, 2015). At a local level, over-widened channels tend to have problems with sedimentation because of reduced flow velocities (Walling and Amos, 1999).…”

Use of spatially distributed time-integrated sediment sampling networks and distributed fine sediment modelling to inform catchment management

“…Additionally, passive samplers are routinely used as the collection vessel for sediment finger-printing investigations (e.g. Lamba et al, 2015;Sherriff et al, 2015). However uptake for the explicit role of detecting temporal and spatial variation in exposure to particulate pollutants is not yet widespread, despite increasing popularity (Ankers et al, 2003;Pulley et al, 2016).…”

Temporal variations of sediment source from a reservoir catchment in the black soil region, Northeast China

“…e l s e v i e r . c o m / l o c a t e / s t i l l (Nahm et al, 2010;Lamba et al, 2015). However, few work were conducted with sedimentation information to identify long term changes of sediment source.…”

“…Thus, interest in sediment source identified by fingerprinting properties has increased in recent decades, and more and more work on sediment sources have been conducted in many regions over the world, such as in the UK (Gruszowski et al, 2003), the USA (Wallbrink et al, 1998;Lamba et al, 2015), Brazil (Franz et al, 2014), Tunisia (Slimane et al, 2013), Korea (Kim et al, 2013) and Chinese Loess Plateau (Zhang et al, 1989;Yang and Xu, 2010) and Southwestern region (Zhang et al, 2004). However, seldom study on this issue has been conducted in the black soil region of Northeastern China, where soil has been experiencing severe erosion, resulting from the easy erodibility of black soil, harsh climatic conditions and extensive human activity.…”

“…Fingerprinting technique used to identify sediment sources is based on linking the physical or geochemical properties of the potential sediment sources to sediment at the catchment outlet (Haddadchi et al, 2013;Lamba et al, 2015). Different types of fingerprinting properties such as metals (e.g., Blake et al, 2012), stable isotopes (e.g., McKinley et al, 2013), mineral magnetic properties (Walling et al, 1999) and fallout radionuclides (e.g., Huisman et al, 2013) have been used, among which fallout radionuclides 137 Cs and 210 Pb ex are commonly used in a variety of geomorphic settings (e.g., Peart and Walling, 1986;Wallbrink et al, 1998;Gruszowski et al, 2003).…”