Role of contemporary and historic vegetation on nutrients in Missouri reservoirs: implications for developing nutrient criteria

Jones, John R.; Knowlton, Matthew F.; Obrecht, Daniel V.; Thorpe, Anthony P.; Harlan, James D.

doi:10.1080/07438140902772079

Cited by 16 publications

(8 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Had TP concentrations in the IR remained near ecoregional background levels, Tenkiller would have remained oligo-mesotrophic. Broken Bow remained oligo-mesotrophic because inflow TP remained low, likely due to low poultry densities, little pasture area, a small human population, and a high percentage of forest in the watershed (Jones et al 2009). The use of a reference reservoir was instructive in identifying causes of eutrophication.…”

Section: Discussionmentioning

confidence: 99%

“…Age is not significant in explaining reservoir trophic state. Newly constructed reservoirs and those decades older fit within the same cross-system pattern (Carney 2009, Jones et al 2009). Temporal variation in individual reservoirs is a response to climate and the timing of inflows relative to stratification (Knowlton and Jones 2006).…”

mentioning

confidence: 99%

“…A third factor, land cover in the watershed, is potentially variable over time and determines nutrient loading. In the rural US Midwest, most nutrient loading is from nonpoint agricultural sources (Carpenter et al 1998), and reservoir trophic state metrics increase with percent agriculture and decrease with forest cover (Knoll et al 2003, Carney 2009, Jones et al 2009). Reservoirs with low and moderate production are usually located in deep wooded valleys with modest agriculture (Jones et al 2004(Jones et al , 2008; those with relatively undisturbed watersheds display trophic states near regional reference conditions (Carney 2009).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Eutrophication of Tenkiller Reservoir, Oklahoma, from nonpoint agricultural runoff

Cooke

Welch

Jones

2011

Lake and Reservoir Management

Self Cite

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Eutrophication of Tenkiller Reservoir, Oklahoma, from nonpoint agricultural runoff

Cooke

Welch

Jones

2011

Lake and Reservoir Management

Self Cite

View full text Add to dashboard Cite

“…During wet summers, watershed characteristics, such as the % agricultural and forested land cover had a substantial influence on OM dynamics. Agricultural watersheds in our study had the highest soil OM, possibly because these landscapes were historically prairies (Jones et al 2008;Jones et al 2009), with lower slopes that allowed higher soil OM accumulation in spite of agricultural activities. These agricultural soils, however, are also prone to erosion (K) due to lack of tree cover and tilling and can, therefore, contribute terrestrial DOM to agricultural reservoirs.…”

Section: Are Watershed Characteristics Important For Om Quantity and ...mentioning

confidence: 85%

Nonlinear multidecadal trends in organic matter dynamics in Midwest reservoirs are a function of variable hydroclimate

Bhattacharya

Jones

Graham

et al. 2022

Limnology & Oceanography

Self Cite

View full text Add to dashboard Cite

Dissolved organic matter (DOM) and particulate organic matter (POM) can influence biogeochemical processes in aquatic systems. An understanding, however, of the source, composition, and processes driving inland reservoir organic matter (OM) cycling at a regional scale over the long term is currently unexplored. Here, we quantify decadal patterns (> 20 yr) of DOM quantity and composition and POM in 40 reservoirs in the midcontinent United States. We built 184 Random Forest models to identify how the relative influence of watershed characteristics and limnological parameters on OM dynamics may vary over time and in synchrony with hydroclimatic anomalies. The reservoir OM quantity and composition varied nonmonotonically through time and in contrast to lake browning observed in the northern hemisphere. Reservoir DOM composition switched from humic and aromatic during wet summers to aliphatic, potentially autochthonous DOM during particularly prolonged dry summers in the mid-2000s. The shift in reservoir DOM quantity and composition could be attributed to the change in time-varying control of watershed and limnological factors mediated by the hydroclimatic conditions. Watershed control (e.g., percent crops) was predominant during wet summers, while the effect of reservoir morphology (e.g., maximum depth) and water quality parameters (e.g., Secchi depth, chlorophyll a) were evident during dry summers. Thus, future predictions of drier conditions may promote "greening" with negative implications for reservoir water quality and treated drinking water. Considering the nonlinear nature of reservoir OM dynamics and its controls will help to better mitigate water quality issues in these constructed systems increasingly impacted by global changes.

show abstract

“…Para a definição desses critérios, há uma série de procedimentos auxiliares, entre eles modelagem, regionalização e delimitação de ecoregiões, utilização de indicadores ecológicos e índices biológicos e registros da evolução histórica de formas de uso do solo e da qualidade da água (ROHM et al, 2002;FREEMAN et al, 2009;JONES et al, 2009;SEMENCHENKO e RAZLUTSKIJ, 2010 (Karr et al, 1986;Buck et al, 2000;Dodds e Oakes, 2004;Dodds et al, 2006;Soranno et al, 2008;Hawkins et al, 2010), assim como exemplos práticos de aplicação em diversos ecossistemas aquáticos (CHRIST et al, 2007;WEIGEL e ROBERTSON, 2007;JUSTUS, 2010; Energia (1914Energia ( -2011 Existe significativa diversidade de formas de uso e ocupação do solo nas adjacências do reservatório, com destaque para atividades rurais e agrosilvopastoris, mineração e áreas ocupadas por municípios ou vegetação arbórea. Especificamente às margens do reservatório, observam-se áreas agrícolas (cultivo de hortaliças, milho e batata), pastagens, condomínios residenciais, além de remanescentes de vegetação (Figura 10).…”

Section: As Comunidades Biológicas Em Um Reservatório: êNfase No Fitounclassified

Heterogeneidade espacial e variabilidade temporal do reservatório de Itupararanga: uma contribuição ao manejo sustentável dos recursos hídricos da bacia do rio Sorocaba (SP)

Cunha¹

View full text Add to dashboard Cite

"A palavra é o meu meio de comunicação. Eu só poderia amá-la. Eu jogo com elas como se lançam dados: acaso e fatalidade. A palavra é tão forte que atravessa a barreira do som. Cada palavra é uma ideia. Cada palavra materializa o espírito.Quanto mais palavras eu conheço, mais sou capaz de pensar o meu sentimento. Devemos modelar nossas palavras até se tornarem o mais fino invólucro dos nossos pensamentos." Clarice LispectorDedico esta tese a todos os meus familiares e à Juliana, que nunca questionaram o mérito dos meus sonhos e sempre me incentivaram a buscá-los com perseverança, ainda que isso implique, em alguns momentos, abdicação de precioso tempo ao lado deles. AGRADECIMENTOSA gratidão é um dos mais nobres sentimentos humanos, pois representa o reconhecimento da importância da colaboração de outras pessoas para a realização das atividades cotidianas e a superação de desafios. Ninguém é o que é, ou conquista o que conquista, por merecimento exclusivo, mas sim por mérito compartilhado com outros indivíduos -que são os verdadeiros amigos, na mais genuína acepção da palavra. Por isso, tenho a oportunidade, neste momento, de expressar meus sinceros agradecimentos a pessoas que surgiram na minha vida, ao acaso ou não, há muito tempo ou recentemente, e com as quais tenho a satisfação de conviver.À Profª Maria do Carmo Calijuri, grande exemplo profissional, pela verdadeira amizade construída desde 2004, ano em que comecei a desenvolver projeto de iniciação científica, sob sua orientação, quando ainda cursava o primeiro ano de graduação em Engenharia Ambiental na EESC-USP. Pela força e confiança sempre transmitidas, pelo apoio incondicional, pela dedicação, pelo acolhimento, pelas longas e agradáveis conversas sobre a profissão e sobre a vida e pela oportunidade única de aprendizado e formação, deixo aqui registradas a minha admiração e a minha sincera gratidão. Tenha certeza que a amizade, o respeito e a cumplicidade serão eternos. , revealed the meso-eutrophic condition of the reservoir. The phytoplankton community structure and the high abundance of Chlorophyceae and Cyanobacteria as the dominant groups, especially the species Cylindrospermopsis raciborskii and Monoraphidium contortum, were associated with the possible co-limitation by nutrients and light availability in different spatial compartments of the reservoir, the hydraulic retention time, the circulation patterns within the water column and the interaction with zooplankton and macrophytes. The tributary rivers (Una, Sorocabuçu Sorocamirim) were recognized as point sources of pollution and as the main drivers of water quality degradation in the reservoir. Smaller relative importance was attributed to the diffuse sources (agricultural runoff). In order to aid in the local water resources management, the following topics were discussed: the role of the reservoir for retention or exportation of solids and nutrients, the water quality frequency curves and the proposal of a new Trophic State Index for subtropical reservoirs, the TSI sr .

show abstract

Role of contemporary and historic vegetation on nutrients in Missouri reservoirs: implications for developing nutrient criteria

Cited by 16 publications

References 28 publications

Eutrophication of Tenkiller Reservoir, Oklahoma, from nonpoint agricultural runoff

Eutrophication of Tenkiller Reservoir, Oklahoma, from nonpoint agricultural runoff

Nonlinear multidecadal trends in organic matter dynamics in Midwest reservoirs are a function of variable hydroclimate

Heterogeneidade espacial e variabilidade temporal do reservatório de Itupararanga: uma contribuição ao manejo sustentável dos recursos hídricos da bacia do rio Sorocaba (SP)

Contact Info

Product

Resources

About