Permafrost Promotes Shallow Groundwater Flow and Warmer Headwater Streams
نویسندگان
چکیده
منابع مشابه
Macroinvertebrate community responses to hydrological controls and groundwater abstraction effects across intermittent and perennial headwater streams.
Intermittent rivers comprise a significant proportion of river networks globally and their spatial extent is predicted to increase with rising water abstraction pressures. Despite this, the ecological implications of hydrological modifications within intermittent rivers have received limited research attention. This paper examines macroinvertebrate assemblages across intermittent and perennial ...
متن کاملConditions in Agricultural Headwater Streams
11 Whilst the processes involved in the cycling of dissolved phosphorus (P) in rivers have been 12 extensively studied, less is known about the mechanisms controlling particulate P concentrations 13 during small and large flows. This deficiency is addressed through an analysis of large numbers of 14 suspended particulate matter (SPM) samples collected under baseflow (n = 222) and storm event (n...
متن کاملNitrogen retention in headwater streams: the influence of groundwater-surface water exchange.
Groundwater-surface water (GW-SW) interaction lengthens hydraulic residence times, increases contact between solutes and biologically active surfaces, and often creates a gradient of redox conditions conducive to an array of biogeochemical processes. As such, the interaction of hydraulic patterns and biogeochemical activity is suspected to be an important determinant of elemental spiraling in s...
متن کاملScale effects on headwater catchment runoff timing, flow sources, and groundwater-streamflow relations
[1] The effects of catchment size and landscape organization on runoff generation are poorly understood. Little research has integrated hillslope and riparian runoff investigation across catchments of different sizes to decipher first-order controls on runoff generation. We investigated the role of catchment sizes on riparian and hillslope dynamics based on hydrometric and tracer data observed ...
متن کاملChannel and perennial flow initiation in headwater streams: management implications of variability in source-area size.
Despite increasing attention to management of headwater streams as sources of water, sediment, and wood to downstream rivers, the extent of headwater channels and perennial flow remain poorly known and inaccurately depicted on topographic maps and in digital hydrographic data. This study reports field mapping of channel head and perennial flow initiation locations in forested landscapes underla...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 2021
ISSN: 0043-1397,1944-7973
DOI: 10.1029/2020wr027463