PubAg

Main content area

You searched for: Subject "Arizona" Remove constraint Subject: "Arizona"
Start Over

Search

3,283  Search Results

« Previous | 1 - 20 of 3,283 |
Number of results to display per page

Search Results

1. Building actor-centric transformative capacity through city-university partnerships

Author:
Keeler, Lauren Withycombe; Beaudoin, Fletcher; Wiek, Arnim; John, Beatrice; Lerner, Amy M.; Beecroft, Richard; Tamm, Kaidi; Seebacher, Andreas; Lang, Daniel J.; Kay, Braden; Forrest, Nigel
Source:
Ambio 2019 v.48 no.5 pp. 529-538
ISSN:
0044-7447
Subject:
Arizona,   etc   ; case studies; cities; sustainable development; Oregon;     Show all 5 Subjects
Abstract:
... Cities worldwide are rising to the challenge of sustainable development, calling for large-scale and fast-paced transformations towards sustainability. Urban sustainability challenges are now being reframed as a lack of capacity of individuals and organizations to carry out such socio-technical transformations. This article expands on transformative capacity literature by elucidating the concept o ...
DOI:
10.1007/s13280-018-1117-9

2. Steven A. Weber and the Birth of the Society of Ethnobiology

Author:
Emslie, Steven D.
Source:
Journal of ethnobiology 2018 v.38 no.4 pp. 456-463
ISSN:
2162-4496
Subject:
Arizona,   etc   ; anthropology; professionals; students;     Show all 4 Subjects
Abstract:
... The origin and early history of the Journal of Ethnobiology and Society of Ethnobiology in Arizona in the late 1970s and early 1980s are reviewed in respect to the contributions of Steven A. Weber. The roles of Lyndon Hargrave, James Stuckey, and Prescott Center College in this history are documented, along with the events leading to the incorporation of the non-profit Society of Ethnobiology in 1 ...
DOI:
10.2993/0278-0771-38.4.456

3. The resilience work of institutions

Author:
Gim, Changdeok; Miller, Clark A.; Hirt, Paul W.
Source:
Environmental science & policy 2019 v.97 pp. 36-43
ISSN:
1462-9011
Subject:
Arizona,   etc   ; case studies; environmental science; infrastructure; issues and policy; uncertainty;     Show all 6 Subjects
Abstract:
... Institutions make critical contributions to the resilience of infrastructures. We develop a framework for analyzing and classifying the diverse forms of work performed by institutions in support of infrastructure resilience: designing, building, operating, maintaining, and upgrading systems. The framework incorporates the kinds of resilience work done—constitutional, regulatory, and operational—th ...
DOI:
10.1016/j.envsci.2019.03.004

4. Determining the long-term operational performance of pump and treat and the possibility of closure for a large TCE plume

Author:
Guo, Zhilin; Brusseau, Mark L.; Fogg, Graham E.
Source:
Journal of hazardous materials 2019 v.365 pp. 796-803
ISSN:
0304-3894
Subject:
Arizona,   etc   ; aquifers; mathematical models; maximum contaminant level; permeability; remediation;     Show all 6 Subjects
Abstract:
... The purpose of this study is to evaluate the impact of heterogeneity on the long-term performance of a large pump-and-treat (PAT) system that has been in operation for 30 years at a site located in Tucson, AZ. A 3D numerical model was developed. Three different concentrations were examined: composite concentration in the influent to the treatment plant, resident concentration in the aquifer, and c ...
DOI:
10.1016/j.jhazmat.2018.11.057

5. Exploitation of pump-and-treat remediation systems for characterization of hydraulic heterogeneity

Author:
Zha, Yuanyuan; Yeh, Tian-Chyi J.; Illman, Walter A.; Mok, Chin Man W.; Tso, Chak-Hau M.; Carrera, Barbara A.; Wang, Yu-Li
Source:
Journal of hydrology 2019 v.573 pp. 324-340
ISSN:
0022-1694
Subject:
Arizona,   etc   ; aquifers; cost effectiveness; data collection; geostatistics; groundwater; hydraulic conductivity; models; monitoring; remediation; surveys; tomography; wells;     Show all 13 Subjects
Abstract:
... Pump-and-treat (P&T) is a widely adopted technology for groundwater containment/remediation. Over the past decades, we have recognized that mapping aquifer heterogeneity, especially the low hydraulic conductivity (K) zones, has become an urgent need in remediation efforts. Meanwhile, many studies have proved that hydraulic tomography (HT) utilizing groundwater responses from a series of cross-hole ...
DOI:
10.1016/j.jhydrol.2019.03.089

6. Satellite patches, patch expansion, and doubling time as decision metrics for invasion control: Pennisetum ciliare expansion in southwestern Arizona

Author:
Weston, Jaron D.; McClaran, Mitchel P.; Whittle, Richard K.; Black, Christian W.; Fehmi, Jeffrey S.
Source:
Invasive plant science and management 2019 v.12 no.1 pp. 36-42
ISSN:
1939-747X
Subject:
Arizona,   etc   ; C4 plants; Cenchrus ciliaris; grasses; invasive species; monitoring; population distribution; roads; satellites; Africa;     Show all 10 Subjects
Abstract:
... Essential variables to consider for an efficient control strategy for invasive plants include dispersion pattern (i.e., satellite or invasion front) and patch expansion rate. These variables were demonstrated for buffelgrass [Pennisetum ciliare (L.) Link], a C₄ perennial grass introduced from Africa, which has invaded broadly around the world. The study site was along a roadway in southern Arizona ...
DOI:
10.1017/inp.2019.3

7. The effects of topographic surveying technique and data resolution on the detection and interpretation of geomorphic change

Author:
Kasprak, Alan; Bransky, Nathaniel D.; Sankey, Joel B.; Caster, Joshua; Sankey, Temuulen T.
Source:
Geomorphology 2019 v.333 pp. 1-15
ISSN:
0169-555X
Subject:
Arizona,   etc   ; data collection; landscapes; photogrammetry; remote sensing; river valleys; sampling; sediments; surveys; topography; Colorado River;     Show all 11 Subjects
Abstract:
... Change detection of high resolution topographic data is commonly used in river valleys to quantify reach- and site-scale sediment budgets by estimating the erosion/deposition volume, and to interpret the geomorphic processes driving erosion and deposition. Field survey data are typically collected as point clouds that are often converted to gridded raster datasets and the ultimate choice of grid r ...
DOI:
10.1016/j.geomorph.2019.02.020

8. The impacts of porous rock check dams on a semiarid alluvial fan

Author:
Nichols, M.H.; Polyakov, V.O.
Source:
The Science of the total environment 2019 v.664 pp. 576-582
ISSN:
0048-9697
Subject:
Arizona,   etc   ; backfilling; incising; land degradation; monitoring; pollution load; runoff; sediment yield; sediments; vegetation; watersheds;     Show all 11 Subjects
Abstract:
... Low-tech rock check dams are widely used to address land degradation; however, assessments of their impacts on runoff and sediment are lacking and are often limited to the first few years after construction. In 2008, two small (4.0 and 3.1 ha) instrumented watersheds located 300 m apart on an alluvial fan on the Santa Rita Experimental Range in southern Arizona were treated with 37 porous, loose r ...
Handle:
10113/6302782
DOI:
10.1016/j.scitotenv.2019.01.429

9. Improved enrichment factor calculations through principal component analysis: Examples from soils near breccia pipe uranium mines, Arizona, USA

Author:
Bern, Carleton R.; Walton-Day, Katie; Naftz, David L.
Source:
Environmental pollution 2019 v.248 pp. 90-100
ISSN:
0269-7491
Subject:
Arizona,   etc   ; arsenic; copper; data collection; molybdenum; principal component analysis; soil; sulfur; uranium; wind;     Show all 10 Subjects
Abstract:
... The enrichment factor (EF) is a widely used metric for determining how much the presence of an element in a sampling media has increased relative to average natural abundance because of human activity. Calculation of an EF requires the selection of both a background composition and a reference element, choices that can strongly influence the result of the calculation. Here, it is shown how careful ...
DOI:
10.1016/j.envpol.2019.01.122

10. A kW-scale, 24-hour continuously operational, radiative sky cooling system: Experimental demonstration and predictive modeling

Author:
Aili, Ablimit; Zhao, Dongliang; Lu, Jiatao; Zhai, Yao; Yin, Xiaobo; Tan, Gang; Yang, Ronggui
Source:
Energy conversion and management 2019 v.186 pp. 586-596
ISSN:
0196-8904
Subject:
Arizona,   etc   ; ambient temperature; cold; cooling; cooling systems; models; summer; water flow; water temperature;     Show all 9 Subjects
Abstract:
... With the advancement in sub-ambient cooling of water during daytime under the sun with scalable-manufactured radiative cooling metamaterials, the challenge for applications lies in design and building of large-scale radiative cooling systems. Here, we present a kW-scale, 24-hour continuously operational, radiative sky cooling system, with both experimental study and detailed modeling. We first qua ...
DOI:
10.1016/j.enconman.2019.03.006

11. Forestry management and water law: comparing Ecuador and Arizona

Author:
Martínez Moscoso, Andrés; Larson, Rhett
Source:
Water international 2019 v.44 no.3 pp. 337-353
ISSN:
1941-1707
Subject:
Arizona,   etc   ; forest management; forest resources; forest restoration; learning; public-private partnerships; water management; watersheds; Ecuador;     Show all 9 Subjects
Abstract:
... This article compares public–private partnerships dedicated to improving forestry management to protect water in the Paute River basin in Ecuador (FONAPA) and the Verde River basin in Arizona (the Four Forest Restoration Initiative). Both programmes create incentives for improved forestry management and suggest lessons for water management in general but may face legal challenges that require refo ...
DOI:
10.1080/02508060.2019.1595995

12. Water-independent residential properties as a transformational solution to achieve water sustainability in desert cities?

Author:
Forrest, Nigel; Stein, Zoë; Wiek, Arnim
Source:
Journal of cleaner production 2019 v.214 pp. 1038-1049
ISSN:
0959-6526
Subject:
Arizona,   etc   ; arid zones; case studies; cities; residential areas; risk; stakeholders; watersheds; Colorado River;     Show all 9 Subjects
Abstract:
... Cities in regions around the world, such as the Colorado River Basin, face severe water challenges and need solutions that deliver significant progress towards sustainable urban water systems. Real-world experiments help stakeholders learn about solutions and select the most promising for scaling and transfer, but the sustainability experiments literature lacks guidance on how solution case studie ...
DOI:
10.1016/j.jclepro.2018.12.309

13. An analytical model for estimation of land surface net water flux from near-surface soil moisture observations

Author:
Sadeghi, Morteza; Tuller, Markus; Warrick, Arthur W.; Babaeian, Ebrahim; Parajuli, Kshitij; Gohardoust, Mohammad R.; Jones, Scott B.
Source:
Journal of hydrology 2019 v.570 pp. 26-37
ISSN:
0022-1694
Subject:
Arizona,   etc   ; climatic factors; evapotranspiration; hydrologic models; prediction; remote sensing; soil water; surface water; California; Idaho; Indiana;     Show all 11 Subjects
Abstract:
... The accurate determination of land surface water fluxes at various spatiotemporal scales remains a challenge in hydrological sciences. It is intuitive that land surface net water flux (i.e., infiltration minus evapotranspiration) directly affects near-surface soil moisture. However, there exists no hydrological model suitable to calculate net water flux based on measured near-surface soil moisture ...
DOI:
10.1016/j.jhydrol.2018.12.038

14. Improving habitat and connectivity model predictions with multi-scale resource selection functions from two geographic areas

Author:
Wan, Ho Yi; Cushman, Samuel A.; Ganey, Joseph L.
Source:
Landscape ecology 2019 v.34 no.3 pp. 503-519
ISSN:
0921-2973
Subject:
Arizona,   etc   ; Strix occidentalis lucida; biodiversity; case studies; habitat destruction; habitat preferences; habitats; landscapes; models; prediction;     Show all 10 Subjects
Abstract:
... CONTEXT: Habitat loss and fragmentation are the most pressing threats to biodiversity, yet assessing their impacts across broad landscapes is challenging. Information on habitat suitability is sometimes available in the form of a resource selection function model developed from a different geographical area, but its applicability is unknown until tested. OBJECTIVES: We used the Mexican spotted owl ...
DOI:
10.1007/s10980-019-00788-w

15. Increasing trends in high-severity fire in the southwestern USA from 1984 to 2015

Author:
Singleton, Megan P.; Thode, Andrea E.; Sánchez Meador, Andrew J.; Iniguez, Jose M.
Source:
Forest ecology and management 2019 v.433 pp. 709-719
ISSN:
0378-1127
Subject:
Arizona,   etc   ; Picea; climate change; conifers; ecosystems; fire regime; fires; forests; humans; woodlands; New Mexico;     Show all 11 Subjects
Abstract:
... In the last three decades, over 4.1 million hectares have burned in Arizona and New Mexico and the largest fires in documented history have occurred in the past two decades. Changes in burn severity over time, however, have not been well documented in forest and woodland ecosystems in the southwestern US. Using remotely sensed burn severity data from 1621 fires (>404 ha), we assessed trends from 1 ...
DOI:
10.1016/j.foreco.2018.11.039

16. An analysis of past and present megadrought impacts on a modern water resource system

Author:
Murphy, Kevin W.; Ellis, Andrew W.
Source:
Hydrological sciences journal 2019 v.64 no.1 pp. 45-65
ISSN:
2150-3435
Subject:
Arizona,   etc   ; basins; dendroclimatology; drought; models; paleoclimatology; planning; risk; stream flow; water supply; watersheds; Colorado River;     Show all 12 Subjects
Abstract:
... Extended drought is a concern for water resource sustainability in the Colorado River Basin of the western USA. Recent instrumental data are a limited rendering of drought risk, while paleoclimate data provide evidence of megadrought that could reoccur; but their impact analyses have not been reported to date. A 645-year tree-ring reconstruction of central Arizona, USA, streamflows reveals several ...
DOI:
10.1080/02626667.2019.1571274

17. Crop Growers’ Adaptive Capacity to Climate Change: A Situated Study of Agriculture in Arizona’s Verde Valley

Author:
Douglass-Gallagher, Elizabeth; Stuart, Diana
Source:
Environmental management 2019 v.63 no.1 pp. 94-109
ISSN:
0364-152X
Subject:
Arizona,   etc   ; climate change; conservation practices; crops; drought; governmental programs and projects; growers; heat tolerance; interviews;     Show all 9 Subjects
Abstract:
... Climate change will pose unprecedented challenges for agricultural producers globally, requiring the ability to adapt to new and unpredictable conditions. This study explores the adaptive capacity of crop growers in the Verde Valley, Arizona (US). Rather than examining pre-determined indicators of adaptive capacity, this study adopts a situated framework that examines material conditions, percepti ...
DOI:
10.1007/s00267-018-1114-6

18. The avian “hibernation” enigma: thermoregulatory patterns and roost choice of the common poorwill

Author:
Woods, Christopher P.; Czenze, Zenon J.; Brigham, R. Mark
Source:
Oecologia 2019 v.189 no.1 pp. 47-53
ISSN:
0029-8549
Subject:
Arizona,   etc   ; birds; heat; mammals; radio transmitters; resting periods; skin temperature; solar radiation; winter;     Show all 9 Subjects
Abstract:
... Compared to mammals, there are relatively few studies examining heterothermy in birds. In 13 bird families known to contain heterothermic species, the common poorwill (Phalaenoptilus nuttallii) is the only species that ostensibly hibernates. We used temperature-sensitive radio-transmitters to collect roost and skin temperature (Tₛₖᵢₙ) data, and winter roost preferences for free-ranging poorwills i ...
DOI:
10.1007/s00442-018-4306-0

19. Farm-to-school programs’ local foods activity in Southern Arizona: Local foods toolkit applications and lessons

Author:
Duval, Dari; Bickel, Ashley K.; Frisvold, George B.
Source:
Journal of agriculture, food systems, and community development 2019 v.8 no.C pp. 53-72
ISSN:
2152-0801
Subject:
Arizona,   etc   ; USDA; census data; economic impact; exports; farm to school; farms; food purchasing; foods; fruits; vegetables;     Show all 11 Subjects
Abstract:
... This analysis applies principles and methods from the U.S. Department of Agriculture (USDA) Local Foods Toolkit to demonstrate the moderating influence of countervailing effects on the economic impacts of local food purchases through farm-to-school programs in Southern Arizona using USDA Farm to School Census data. The analysis applies and expands upon recommendations in the Toolkit, introducing t ...
DOI:
10.5304/jafscd.2019.08C.001

20. Roly-Uoly Egg Sacs: Isopods Used as Replacement Egg Sacs by the Wolf Spider Pardosa valens (Araneae: Lycosidae)

Author:
Brown, Christopher A.
Source:
Arachnology 2018 v.17 no.8 pp. 439-440
ISSN:
2050-9936
Subject:
Arizona,   etc   ; Armadillidium vulgare; Pardosa; eggs; females;     Show all 5 Subjects
Abstract:
... Wolf spider females have the distinctive behaviour of carrying the egg sac attached to the spinnerets. If this egg sac is dislodged, the female will retrieve and reattach it, if possible. However, in some instances, a female may reattach another object of similar size or shape as a replacement for a lost egg sac. Here, I report the first example of an isopod, Armadillidium vulgare, being used as a ...
DOI:
10.13156/arac.2017.17.8.439