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- Author:
- Patrick R. Kormos, et al. ; C. Jason Williams; Frederick B. Pierson; Osama Z. Al‐Hamdan; S. Kossi Nouwakpo; Justin C. Johnson; Viktor O. Polyakov; Scott E. Shaff; Kenneth E. Spaeth; Show all 9 Authors
- Source:
- Ecosphere 2022 v.13 no.6 pp. e4145
- ISSN:
- 2150-8925
- Subject:
- Artemisia; Juniperus; Pinus; basins; canopy; mastication; rain; rainfall simulation; rangelands; runoff; sediment yield; sediments; shrublands; soil; soil erosion models; steppes; topographic slope; trees; woodlands; woody plants
- Abstract:
- ... The transition of sagebrush‐dominated (Artemisia spp.) shrublands to pinyon (Pinus spp.) and juniper (Juniperus spp.) woodlands markedly alters resource‐conserving vegetation structure typical of these landscapes. Land managers and scientists in the western United States need knowledge and predictive tools for assessment and effective targeting of tree‐removal treatments to conserve or restore sag ...
- DOI:
- 10.1002/ecs2.4145
- https://doi.org/10.1002/ecs2.4145
- Author:
- Patrick R. Kormos, et al. ; C.J. Williams; Frederick B. Pierson; Sayjro K. Nouwakpo; Osama Z. Al-Hamdan; Mark A. Weltz; Show all 6 Authors
- Source:
- Catena 2020 v.185 pp. 103477
- ISSN:
- 0341-8162
- Subject:
- Artemisia; Bromus tectorum; Juniperus; Pinus; basins; canopy; conifers; ecosystems; grasses; growing season; indigenous species; land management; land ownership; overland flow; perennials; plant cuttings; prediction; prescribed burning; private lands; public lands; raindrop impact; rainfall simulation; rangelands; risk; runoff; sediment yield; sediments; shredding; shrubs; soil; soil resources; sowing; steppes; trees; understory; wildfires; woodlands; Southwestern United States
- Abstract:
- ... Pinyon (Pinus spp.) and juniper (Juniperus spp.) woodland encroachment has imperiled a broad ecological domain of the sagebrush steppe (Artemisia spp.) ecosystem in the Great Basin Region, USA. As these conifers increase in dominance on sagebrush rangelands, understory vegetation declines and ecohydrologic function can shift from biotic (vegetation) controlled retention of soil resources to abioti ...
- Handle:
- 10113/6357105
- DOI:
- 10.1016/j.catena.2018.02.027
- https://doi.org/10.1016/j.catena.2018.02.027
- Author:
- Patrick R. Kormos, et al. ; Williams C. Jason; Justin C. Johnson; Frederick B. Pierson; Cameron S. Burleson; Viktor O. Polyakov; S. Kossi Nouwakpo; Show all 7 Authors
- Source:
- Water 2020 v.12 no.8 pp. -
- ISSN:
- 2073-4441
- Subject:
- Artemisia; Juniperus; Pinus; area; climate; ecosystems; hydraulic conductivity; land use; measurement; mechanical methods; occurrence; prediction; prescribed burning; pretreatment; rangelands; runoff; steppes; topographic slope; trees; vegetation structure; water repellent soils; woodlands; North America
- Abstract:
- ... Pinyon (Pinus spp.) and juniper (Juniperus spp.) woodland encroachment into sagebrush (Artemisia spp.) steppe communities throughout western North America has substantially altered the vegetation structure and hydrologic function of one of the most ecologically important rangeland ecosystems in the world. Various pinyon and juniper tree removal practices are employed to re-establish sagebrush step ...
- Handle:
- 10113/7079807
- DOI:
- 10.3390/w12082213
- https://doi.org/10.3390/w12082213
- Author:
- Patrick R. Kormos, et al. ; Sayjro K. Nouwakpo; C. Jason Williams; Frederick B. Pierson; Mark A. Weltz; Awadis Arslan; Osama Z. Al-Hamdan; Show all 7 Authors
- Source:
- Catena 2020 v.185 pp. 104301
- ISSN:
- 0341-8162
- Subject:
- Artemisia; Juniperus; Pinus; basins; canopy; ecosystems; hydrologic cycle; pinyon-juniper; prescribed burning; rainfall simulation; range improvement; rangelands; runoff; sediment transport; soil; steppes; trees; wildfires; woody plants; Great Basin States; Western United States
- Abstract:
- ... Woody species encroachment into herbaceous and shrub-dominated vegetations is a concern in many rangeland ecosystems of the world. Arrival of woody species into affected rangelands leads to changes in the spatial structure of vegetation and alterations of biophysical processes. In the western USA, encroachment of pinyon (Pinus spp.) and juniper (Juniperus spp.) tree species into sagebrush steppes ...
- DOI:
- 10.1016/j.catena.2019.104301
- https://doi.org/10.1016/j.catena.2019.104301
- Author:
- Patrick R. Kormos, et al. ; C. Jason Williams; Frederick B. Pierson; Osama Z. Al-Hamdan; Sayjro K. Nouwakpo; Mark A. Weltz; Show all 6 Authors
- Source:
- Rangeland ecology & management 2019 v.72 no.1 pp. 47-68
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Bromus tectorum; Juniperus; Pinus; basins; canopy; energy; grasses; growing season; mastication; mechanical methods; overland flow; perennials; plant cuttings; rainfall simulation; rangelands; runoff; sediments; shrubs; soil; steppes; trees; woodlands; Western United States
- Abstract:
- ... Land managers across the western United States are faced with selecting and applying tree-removal treatments on pinyon (Pinus spp.) and juniper (Juniperus spp.) woodland-encroached sagebrush (Artemisia spp.) rangelands, but current understanding of long-term vegetation and hydrological responses of sagebrush sites to tree removal is inadequate for guiding management. This study applied a suite of ...
- Handle:
- 10113/6369608
- DOI:
- 10.1016/j.rama.2018.07.004
- https://doi.org/10.1016/j.rama.2018.07.004
- Author:
- Patrick R. Kormos, et al. ; C. Jason Williams; Frederick B. Pierson; Sayjro K. Nouwakpo; Osama Z. Al‐Hamdan; Mark A. Weltz; Show all 6 Authors
- Source:
- Ecohydrology 2019 v.12 no.4 pp. e2086
- ISSN:
- 1936-0584
- Subject:
- Artemisia; Juniperus; Pinus; area; burning; canopy; conifers; grasses; growing season; overland flow; plant communities; rainfall simulation; runoff; sediments; shrublands; soil; soil erosion; soil resources; trees; understory; water resources; woodlands
- Abstract:
- ... Encroachment of sagebrush (Artemisia spp.) shrublands by pinyon (Pinus spp.) and juniper (Juniperus spp.) conifers (woodland encroachment) induces a shift from biotic‐controlled resource retention to abiotic‐driven loss of soil resources. This shift is driven by a coarsening of the vegetation structure with increasing dominance of site resources by trees. Competition between the encroaching trees ...
- Handle:
- 10113/6472488
- DOI:
- 10.1002/eco.2086
- https://doi.org/10.1002/eco.2086
- Author:
- Patrick R. Kormos, et al. ; Patrick E. Clark; C. Jason Williams; Frederick B. Pierson; Show all 4 Authors
- Source:
- Journal of arid environments 2018 v.151 no. pp. 104-112
- ISSN:
- 0140-1963
- Subject:
- Artemisia; altitude; autumn; case studies; cattle; decision making; dry environmental conditions; environmental health; forbs; graminoids; grazing; grazing management; issues and policy; landscapes; livestock production; prescribed burning; public lands; runoff; species diversity; steppes; summer; Western United States
- Abstract:
- ... Postfire livestock grazing management in the higher-elevation, mesic portions of the sagebrush steppe lacks a firm scientific foundation to support decision making. Following a prescribed fire conducted in fall 2002, we evaluated effects of different lengths of rest from mid-summer (July) cattle grazing on postfire ground cover and plant species diversity responses in mesic sagebrush steppe. Treat ...
- DOI:
- 10.1016/j.jaridenv.2017.10.005
- CHORUS:
- 10.1016/j.jaridenv.2017.10.005
- https://doi.org/10.1016/j.jaridenv.2017.10.005
- Author:
- Patrick R. Kormos, et al. ; Andrew R. Hedrick; Danny Marks; Scott Havens; Mark Robertson; Micah Johnson; Micah Sandusky; Hans‐Peter Marshall; Kat J. Bormann; Thomas H. Painter; Show all 10 Authors
- Source:
- Water resources research 2018 v.54 no.10 pp. 8045-8063
- ISSN:
- 0043-1397
- Subject:
- National Aeronautics and Space Administration; energy balance; lidar; models; mountains; research; snow; snowmelt; snowpack; time series analysis; water; water management; watersheds; California
- Abstract:
- ... Accurately simulating the spatiotemporal distribution of mountain snow water equivalent improves estimates of available meltwater and benefits the water resource management community. In this paper we present the first integration of lidar‐derived distributed snow depth data into a physics‐based snow model using direct insertion. Over four winter seasons (2013–2016) the National Aeronautics and Sp ...
- Datasets:
- Data from: Direct insertion of NASA Airborne Snow Observatory-derived snow depth time-series into the iSnobal energy balance snow model
- DOI:
- 10.1029/2018WR023190
- https://doi.org/10.1029/2018WR023190
- Author:
- Patrick R. Kormos, et al. ; Danny Marks; Frederick B. Pierson; C. Jason Williams; Stuart P. Hardegree; Scott Havens; Andrew Hedrick; Jonathan D. Bates; Tony J. Svejcar; Show all 9 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.1 pp. 116-128
- ISSN:
- 1551-5028
- Subject:
- Artemisia; Centrocercus urophasianus; Juniperus occidentalis; ecosystems; habitat conservation; landscapes; melting; meteorological data; models; plant communities; rain; rangelands; snow; snowmelt; soil water; steppes; stream flow; surface water; watersheds; wildlife; wildlife habitats; Western United States
- Abstract:
- ... Western Juniper (Juniperus occidentalis Hook.) has greatly expanded in the past 150+years and now dominates over 3.6 million ha of rangeland in the Intermountain Western United States. The impacts of juniper encroachment on critical ecohydrological relationships among snowdistribution, water budgets, plant community transitions, and habitat requirements for wildlife, such as the greater sage grous ...
- Author:
- Patrick R. Kormos, et al. ; C. Jason Williams; Frederick B. Pierson; Osama Z. Al-Hamdan; Stuart P. Hardegree; Patrick E. Clark; Show all 6 Authors
- Source:
- Catena 2016 v.144 pp. 163-176
- ISSN:
- 0341-8162
- Subject:
- basins; burning; erodibility; fine-textured soils; ground vegetation; growing season; overland flow; rain; raindrop impact; rainfall simulation; rangelands; runoff; sediments; shrublands; shrubs; soil heterogeneity; soil water; temporal variation; water erosion; water repellent soils; wildfires; United States
- Abstract:
- ... Increasing trends in wildfire activity on semi-arid rangelands necessitate advancement in understanding of fire impacts on vegetation, soils, and runoff and erosion processes. This study used artificially applied rainfall and concentrated overland flow experiments to evaluate the ecohydrologic response and recovery of a semi-arid shrubland in the Great Basin Region, USA, following fire. Rainfall e ...
- Handle:
- 10113/5261687
- DOI:
- 10.1016/j.catena.2016.05.006
- https://doi.org/10.1016/j.catena.2016.05.006
- Author:
- Patrick R. Kormos, et al. ; Danny Marks; Frederick B. Pierson; C. Jason Williams; Stuart P. Hardegree; Scott Havens; Andrew Hedrick; Jonathan D. Bates; Tony J. Svejcar; Show all 9 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.1 pp. 116-128
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Centrocercus urophasianus; Juniperus occidentalis; ecosystems; habitat conservation; landscapes; melting; meteorological data; models; plant communities; rangelands; snow; snowmelt; soil water; steppes; stream flow; surface water; watersheds; wildlife; wildlife habitats; Western United States
- Abstract:
- ... Western Juniper (Juniperus occidentalis Hook.) has greatly expanded in the past 150+ years and now dominates over 3.6 million ha of rangeland in the Intermountain Western United States. The impacts of juniper encroachment on critical ecohydrological relationships among snow distribution, water budgets, plant community transitions, and habitat requirements for wildlife, such as the greater sage gro ...
- Datasets:
- Data From: Weather, Snow, and Streamflow data from four western juniper-dominated Experimental Catchments in south western Idaho, USA.
- Handle:
- 10113/5245042
- DOI:
- 10.1016/j.rama.2016.05.003
- https://doi.org/10.1016/j.rama.2016.05.003
- Author:
- Patrick R. Kormos, et al. ; Frederick B. Pierson; C. Jason Williams; Osama Z. Al-Hamdan; Show all 4 Authors
- Source:
- Rangeland ecology & management 2014 v.67 no.5 pp. 522-538
- ISSN:
- 1550-7424
- Subject:
- Artemisia; aggregate stability; ecosystems; erodibility; managers; mastication; prescribed burning; rain; rainfall simulation; runoff; shrubs; soil depth; soil erosion; soil water; steppes; trees; water repellent soils; woodlands
- Abstract:
- ... Land owners and managers across the western United States are increasingly searching for methods to evaluate and mitigate the effects of woodland encroachment on sagebrush steppe ecosystems. We used small-plot scale (0.5 m2) rainfall simulations and measures of vegetation, ground cover, and soils to investigate woodland response to tree removal (prescribed fire and mastication) at two late-success ...
- Handle:
- 10113/1300337
- DOI:
- 10.2111/REM-D-13-00033.1
- https://doi.org/10.2111/REM-D-13-00033.1
- Author:
- Patrick R. Kormos, et al. ; Frederick B. Pierson; C. Jason Williams; Osama Z. Al-Hamdan; Stuart P. Hardegree; Patrick E. Clark; Show all 6 Authors
- Source:
- Rangeland ecology & management 2015 v.68 no.5 pp. 408-422
- ISSN:
- 1550-7424
- Subject:
- Artemisia; burning; cutting; erodibility; ground vegetation; hills; mulches; overland flow; pinyon-juniper; rain; rangelands; risk; runoff; trees; water erosion; woodlands
- Abstract:
- ... Tree removal is often applied to woodland-encroached rangelands to restore vegetation and improve hydrologic function, but knowledge is limited regarding effects of tree removal on hydrologic response. This study used artificial rainfall and overland flow experiments (9–13 m2) and measures of vegetation and ground cover to investigate short-term (1–2 yr) responses to tree removal at two woodland-e ...
- DOI:
- 10.1016/j.rama.2015.07.004
- https://doi.org/10.1016/j.rama.2015.07.004
- Author:
- Patrick R. Kormos, et al. ; James P. McNamara; Mark S. Seyfried; Hans Peter Marshall; Danny Marks; Alejandro N. Flores; Show all 6 Authors
- Source:
- Journal of hydrology 2015 v.525 pp. 231-248
- ISSN:
- 0022-1694
- Subject:
- aquifers; balance studies; bedrock; drainage; drainage water; managers; models; rain; snow; soil water; soil water storage; stream flow; streams; time series analysis; watersheds; Idaho
- Abstract:
- ... Estimates of bedrock infiltration from mountain catchments in the western U.S. are essential to water resource managers because they provide an estimate of mountain block recharge to regional aquifers. On smaller scales, bedrock infiltration is an important term in water mass balance studies, which attempt to estimate hydrologic states and fluxes in watersheds with fractured or transmissive bedroc ...
- DOI:
- 10.1016/j.jhydrol.2015.03.032
- https://doi.org/10.1016/j.jhydrol.2015.03.032
- Author:
- Patrick R. Kormos, et al. ; Danny Marks; James P. McNamara; H.P. Marshall; Adam Winstral; Alejandro N. Flores; Show all 6 Authors
- Source:
- Journal of hydrology 2014 v.519 pp. 190-204
- ISSN:
- 0022-1694
- Subject:
- basins; biogeochemical cycles; energy flow; groundwater recharge; hills; melting; models; mountain soils; rain; snow; snowmelt; snowpack; soil water; spring; stream flow; streams; surface water; time series analysis; watersheds; Idaho
- Abstract:
- ... The timing, magnitude, and spatial distribution of snow cover and the resulting surface water inputs (SWI) are simulated at a small catchment located in the rain–snow transition zone of southwest Idaho, USA. A physically based snow model is run on this 1.5ha study catchment, which has an elevation range of 1600–1645masl. The catchment is divided into relatively steep (mean slope angle of 21degrees ...
- DOI:
- 10.1016/j.jhydrol.2014.06.051
- https://doi.org/10.1016/j.jhydrol.2014.06.051
16. Can wildfire serve as an ecohydrologic threshold-reversal mechanism on juniper-encroached shrublands
- Author:
- Patrick R. Kormos, et al. ; C. Jason Williams; Frederick B. Pierson; Patrick E. Clark; Stuart P. Hardegree; Osama Z. Al-Hamdan; Show all 6 Authors
- Source:
- Ecohydrology 2014 v.7 no.2 pp. 453-477
- ISSN:
- 1936-0592
- Subject:
- Artemisia; basins; burning; flow; rain; rangelands; runoff; shrublands; soil erosion; soil properties; soil resources; steppes; storms; trees; wildfires; woodlands; woody plants
- Abstract:
- ... Woody plant encroachment on water‐limited lands can induce a shift from biotic (plant)‐controlled resource retention to abiotic (physical)‐driven losses of critical soil resources. The biotic‐to‐abiotic shift occurs where encroachment propagates connectivity of runoff processes and amplified cross‐scale erosion that, in‐turn, promote ecohydrologic resilience of the post‐encroachment community. We ...
- Handle:
- 10113/6472358
- DOI:
- 10.1002/eco.1364
- https://doi.org/10.1002/eco.1364
- Author:
- Patrick R. Kormos, et al. ; Frederick B. Pierson; C. Jason Williams; Stuart P. Hardegree; Patrick E. Clark; Osama Z. Al-Hamdan; Show all 6 Authors
- Source:
- Rangeland ecology & management 2013 v.66 no.3 pp. 274-289
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Juniperus occidentalis; basins; burning; canopy; cutting; environmental impact; rain; rangelands; runoff; soil; steppes; trees; understory; wildfires; woodlands
- Abstract:
- ... Extensive woodland expansion in the Great Basin has generated concern regarding ecological impacts of tree encroachment on sagebrush rangelands and strategies for restoring sagebrush steppe. This study used rainfall (0.5m2 and 13m2 scales) and concentrated flow simulations and measures of vegetation, ground cover, and soils to investigate hydrologic and erosion impacts of western juniper (Juniperu ...
- Handle:
- 10113/1300256
- DOI:
- 10.2111/REM-D-12-00104.1
- https://doi.org/10.2111/REM-D-12-00104.1
- Author:
- Patrick R. Kormos, et al. ; Osama Z. Al-Hamdan; Frederick B. Pierson; Mark A. Nearing; C. Jason Williams; Jeffry J. Stone; Jan Boll; Mark A. Weltz; Show all 8 Authors
- Source:
- Water Resources Research 2012 v.48 no.7 pp. -
- ISSN:
- 0043-1397
- Subject:
- Artemisia; burning; equations; erodibility; fires; overland flow; prediction; rangelands; runoff; sediments; soil erosion models; soil texture; steppes; streams; temporal variation; trees; vegetation cover
- Abstract:
- ... Current physically based overland flow erosion models for rangeland application do not separate disturbed and undisturbed conditions in modeling concentrated flow erosion. In this study, concentrated flow simulations on disturbed and undisturbed rangelands were used to estimate the erodibility and to evaluate the performance of linear and power law equations that describe the relationship between ...
- Handle:
- 10113/5695438
- DOI:
- 10.1029/2011WR011464
- https://doi.org/10.1029/2011WR011464