Now showing items 1-10 of 33
The evolution of root-zone moisture capacities after deforestation: a step towards hydrological predictions under change?
The core component of many hydrological systems, the moisture storage capacity available to vegetation, is impossible to observe directly at the catchment scale and is typically treated as a calibration parameter or obtained ...
Young runoff fractions control streamwater age and solute concentration dynamics
We introduce a new representation of coupled solute and water age dynamics at the catchment scale, which shows how the contributions of young runoff waters can be directly referenced to observed water quality patterns. The ...
Time-Varying Storage-Water Age Relationships in a Catchment With a Mediterranean Climate
(American Geophysical Union, 2018-06-01)
Recent studies on the relationships between catchment storage and water ages using Travel Time Distributions (TTDs), Residence Time Distributions (RTDs), and StorAge Selection (SAS) functions have led to the hypothesis ...
Seasonality of nitrogen balances in a Mediterranean climate watershed, Oregon, US
We constructed a seasonal nitrogen (N) budget for the year 2008 in the Calapooia River Watershed (CRW), an agriculturally dominated tributary of the Willamette River (Oregon, U.S.) under Mediterranean climate. Synthetic ...
Network analysis reveals multiscale controls on streamwater chemistry
(Natl Acad Sciences, 2014-05-13)
Threshold changes in storm runoff generation at a till-mantled headwater catchment
(American Geophysical Union, 2010-07-20)
A small research watershed in the Hubbard Brook Experimental Forest in New Hampshire was equipped with a spatially distributed instrument network designed to continuously monitor hydrometric responses in the shallow ...
Revisiting the Hewlett and Hibbert (1963) Hillslope Drainage Experiment and Modeling Effects of Decadal Pedogenic Processes and Leaky Soil Boundary Conditions
(American Geophysical Union, 2019-10-22)
Subsurface flow dominates water movement from hillslopes to streams in most forested headwater catchments. Hewlett and Hibbert (1963, https://doi.org/10.1029/JZ068i004p01081) constructed an idealized hillslope model (0.91 ...
Modeling wet headwater stream networks across multiple flow conditions in the Appalachian Highlands
Despite the advancement of remote sensing and geospatial technology in recent decades, maps of headwater streams continue to have high uncertainty and fail to adequately characterize temporary streams that expand and ...
Soil phosphorus fractions vary with harvest intensity and vegetation control at two contrasting Douglas-fir sites in the Pacific northwest
Effects of intensive forest management on soil phosphorus (P) are unclear and may impact long-term site productivity. We assessed changes in P availability over 10 years associated with harvest intensity (bole-only vs. ...
Temporal dynamics of catchment transit times from stable isotope data
(American Geophysical Union, 2015-06-01)
Time variant catchment transit time distributions are fundamental descriptors of catchment function but yet not fully understood, characterized, and modeled. Here we present a new approach for use with standard runoff and ...