The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America

Smith, Douglas R.; Macrae, Merrin L.; Kleinman, Peter J. A.; Jarvie, Helen P.; King, Kevin W.; Bryant, Ray B.

doi:10.2134/jeq2019.03.0136

Cited by 30 publications

(27 citation statements)

References 121 publications

(171 reference statements)

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“…With regard to climate change, both Bieroza et al (2019) and Kleinman et al (2019) document increased mobilization of legacy P sources with increased frequency of prolonged drought or activation of latent sources during extreme storm events. The implications of interactions between legacy P and climate change, as long‐term/historical factors affecting efficacy of agricultural P mitigation, are further explored by Smith et al (2019). …”

Section: A Kaleidoscope Of Challenges Facing Efficient Use Of Phosphorusmentioning

confidence: 99%

“…However, there are disconnects between our understanding about better P resource management from regional and national scales and the local social, environmental, and economic realities that determine farm‐scale P management (Sharpley et al, 2016). This leads Smith et al (2019) to highlight the challenges of applying science to agricultural management, and call into question “one‐size‐fits‐all” approaches. Macrae et al (2019), for example, examine the activation of surface runoff and tile flow as pathways of P transport and demonstrate that region‐specific soil type and seasonality need to be considered when designing management strategies to decrease P loading via tile drains.…”

Section: Focusing On Place‐based Solutions: Think Globally Act Locallymentioning

confidence: 99%

“…For example, Margenot et al (2019) examine the potential for regional P recycling in the US Midwest and emphasize that differences in P speciation in recovered products from different waste streams have important implications for crop P uptake and P losses and also influence the fate of N in recovered P products. It will, therefore, be important to match P recovered from different waste streams to appropriate agricultural systems and end users (Bruulsema et al, 2019; Margenot et al, 2019; Smith et al, 2019). …”

Section: Glimmers Of Hope and Bright New Horizons: Phosphorus Stewardmentioning

confidence: 99%

“…As an example, Reid et al (2019) highlight the growing agronomic soil P imbalances, with widening disparities between soil P deficiency and excesses, in agricultural production systems in Canada. Also, in China, there was a 50% increase in the rate of P applied in crop production between 2004 and 2014 (Zhang et al, 2019). Further, economic inequalities limit P fertilizer availability and use in Africa and some parts of Asia (MacDonald et al, 2011), and locally specialized production systems in the United States have created regional surpluses and deficiencies of P ( Jarvie et al, 2015).…”

Section: Highlighting the History Of Phosphorus In Driving Research Amentioning

confidence: 99%

“…Such management would work to increase organic P mineralization, utilize plants and microorganisms, and exploit P recovery and recycling . Along these lines, Zhang et al (2019) demonstrate how PUE in China decreased in the decade between 2004 and 2014; they propose strategies to improve PUE, which include improving legacy P utilization, reducing fertilizer applications, and implementing soil P management strategies.…”

Section: Reflecting On the Need To Improve Phosphorus Use Efficiencymentioning

confidence: 99%

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Phosphorus mirabilis: Illuminating the Past and Future of Phosphorus Stewardship

Jarvie

Sharpley²,

Flaten³

et al. 2019

J of Env Quality

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After its discovery in 1669, phosphorus (P) was named Phosphorus mirabilis (“the miraculous bearer of light”), arising from the chemoluminescence when white P is exposed to the atmosphere. The metaphoric association between P and light resonates through history: from the discovery of P at the start of the Enlightenment period to the vital role of P in photosynthetic capture of light in crop and food production through to new technologies, which seek to capitalize on the interactions between novel ultrathin P allotropes and light, including photocatalysis, solar energy production, and storage. In this introduction to the Journal of Environmental Quality special section “Celebrating the 350th Anniversary of Discovering Phosphorus—For Better or Worse,” which brings together 22 paper contributions, we shine a spotlight on the historical and emerging challenges and opportunities in research and understanding of the agricultural, environmental, and societal significance of this vital element. We highlight the role of P in water quality impairment and the variable successes of P mitigation measures. We reflect on the need to improve P use efficiency and on the kaleidoscope of challenges facing efficient use of P. We discuss the requirement to focus on place‐based solutions for developing effective and lasting P management. Finally, we consider how cross‐disciplinary collaborations in P stewardship offer a guiding light for the future, and we explore the glimmers of hope for reconnecting our broken P cycle and the bright new horizons needed to ensure future food, water, and bioresource security for growing global populations. Core Ideas This special section comprises 22 papers celebrating the 350th anniversary of P discovery. Historical and emerging challenges and opportunities exist in P research and understanding. Authors address P use efficiency and a kaleidoscope of challenges for efficient P use. Focusing on place‐based solutions is required for effective P management. Cross‐disciplinary collaborations in P stewardship are needed for food and water security.

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Section: A Kaleidoscope Of Challenges Facing Efficient Use Of Phosphorusmentioning

confidence: 99%

Section: Focusing On Place‐based Solutions: Think Globally Act Locallymentioning

confidence: 99%

Section: Glimmers Of Hope and Bright New Horizons: Phosphorus Stewardmentioning

confidence: 99%

Section: Highlighting the History Of Phosphorus In Driving Research Amentioning

confidence: 99%

Section: Reflecting On the Need To Improve Phosphorus Use Efficiencymentioning

confidence: 99%

See 3 more Smart Citations

Phosphorus mirabilis: Illuminating the Past and Future of Phosphorus Stewardship

Jarvie

Sharpley²,

Flaten³

et al. 2019

J of Env Quality

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show abstract

Long term agroecosystem research experimental watershed network

Goodrich

Bosch

Ray

et al. 2022

Hydrological Processes

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The vision of the Long Term Agroecosystem Research (LTAR) network is to enable multi‐decadal, trans‐disciplinary, and cross‐location science to ensure the long‐term sustainability of U.S. agriculture. LTAR's primary goals are to: (1) Intensify agricultural productivity, (2) Improve ecosystem services related to agricultural production, and (3) Improve rural prosperity. The LTAR network includes 18 locations (sites). It includes 10 existing hydrologic observatories from the Agricultural Research Service‐Experimental Watershed Network (ARS‐EWN) that were established before the creation of LTAR. Background and an overview of the network are presented.

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Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Ator¹,

Blomquist²,

Webber³

et al. 2020

J of Env Quality

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Despite decades of effort toward reducing nitrogen and phosphorus flux to Chesapeake Bay, water-quality and ecological responses in surface waters have been mixed. Recent research, however, provides useful insight into multiple factors complicating the understanding of nutrient trends in bay tributaries, which we review in this paper, as we approach a 2025 total maximum daily load (TMDL) management deadline. Improvements in water quality in many streams are attributable to management actions that reduced point sources and atmospheric nitrogen deposition and to changes in climate. Nutrient reductions expected from management actions, however, have not been fully realized in watershed streams. Nitrogen from urban nonpoint sources has declined, although waterquality responses to urbanization in individual streams vary depending on predevelopment land use. Evolving agriculture, the largest watershed source of nutrients, has likely contributed to local nutrient trends but has not affected substantial changes in flux to the bay. Changing average nitrogen yields from farmland underlain by carbonate rocks, however, may suggest future trends in other areas under similar management, climatic, or other influences, although drivers of these changes remain unclear. Regardless of upstream trends, phosphorus flux to the bay from its largest tributary has increased due to sediment infill in the Conowingo Reservoir. In general, recent research emphasizes the utility of input reductions over attempts to manage nutrient fate and transport at limiting nutrients in surface waters. Ongoing research opportunities include evaluating effects of climate change and conservation practices over time and space and developing tools to disentangle and evaluate multiple influences on regional water quality.

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The Latitudes, Attitudes, and Platitudes of Watershed Phosphorus Management in North America

Cited by 30 publications

References 121 publications

Phosphorus mirabilis: Illuminating the Past and Future of Phosphorus Stewardship

Phosphorus mirabilis: Illuminating the Past and Future of Phosphorus Stewardship

Long term agroecosystem research experimental watershed network

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

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