Department of Environmental Studies and Sciences

Probing the relationship between ecosystem perceptions and approaches to environmental governance: an exploratory content analysis of seven water dilemmas

Plummer, Ryan; Baird, Julia; Bullock, Ryan; Dupont, Diane; Renzetti, Steven (Routledge, 2018)

Addressing wicked ‘water dilemmas’ requires an understanding of the context within which they are embedded. This study explored perceptions of the ecosystem in terms of resilience and the governance approaches employed ...

Pelleted manure compost improves mine spoil properties enhancing plant growth and phyto-stabilization of potentially toxic metals

Indraratne, Srimathie P.; Pierzynski, Gary M.; Baker, Lucas R.; Prasad, P.V. Vara; Arachchige, Pavithra S. Pitumpe (NRC Research Press, 2022-08-18)

Feedlotmanure is rich in plant nutrients and can immobilize potentially toxic metals. However, pelleted manure compost as an amendment material in mine spoils (chat) is not well studied. This study was conducted to investigate ...

Nano-oxides immobilize cadmium, lead, and zinc in mine spoils and contaminated soils facilitating plant growth

Indraratne, Srimathie P.; Pierzynski, Gary M.; Baker, Lucas R.; Prasad, P.V. Vara (NRC Research Press, 2021-04-26)

Nanoparticles with high reactivity can be applied as amendments to remediate soil metal contaminations by immobilizing toxic elements. Nano-oxides of Fe have been studied but Al and Ti nano-oxides have not been tested for ...

Cattle manure loadings and legacy effects on copper and zinc availability under rainfed and irrigated conditions

Indraratne, Srimathie P; Spengler, Matthew; Xiying, Hao (NRC Research Press, 2021-02-03)

Long-term cattle manure applications build up nutrient pools and can lead to trace element enrichments in soils. The objectives of this study were to evaluate copper (Cu) and zinc (Zn) loadings in the soil during continuous ...

Mobility of arsenic and vanadium in waterlogged calcareous soils due to addition of zeolite and manganese oxide amendments

Indraratne, Srimathie P.; Attanayake, Chammi P.; Kumaragamage, Darshani; Amarawansha, Geethani; Goltz, Douglas M.; Applin, Daniel M. (Wiley, 2023-01-17)

Addition of manganese(IV) oxides (MnO2) and zeolite can affect the mobility of As and V in soils due to geochemical changes that have not been studied well in calcareous, flooded soils. This study evaluated the mobility ...

Gypsum Amendment Reduces Redox-Induced Phosphorous Release from Freshly Manured, Flooded Soils to Floodwater

Dharmakeerthi, Randombage S.; Kumaragamage, Darshani; Indraratne, Srimathie P.; Goltz, Doug (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2019-01-01)

The effectiveness of gypsum in reducing runoff P losses from soils and the mechanisms responsible are well documented; however, gypsum amendment effects in reducing redox-induced P losses from flooded soils are less ...

Degree of Phosphorus Saturation as a Predictor of Redox-Induced Phosphorus Release from Flooded Soils to Floodwater

Kumaragamage, Darshani; Amarawansha, Geethani S.; Indraratne, Srimathie P.; Jayarathne, Kumudu; Flaten, Donald N.; Zvomuya, Francis; Akinremi, Olalekan O. (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2019-11-01)

Phosphorus (P) loss from soils is often enhanced under flooded, anaerobic conditions, increasing the risk of freshwater eutrophication. We aimed to develop a predictive tool to identify soils with greater P release potential ...

Phosphorus Release from Unamended and Gypsum- or Biochar-Amended Soils under Simulated Snowmelt and Summer Flooding Conditions

Dharmakeerthi, R. S.; Kumaragamage, D.; Goltz, D.; Indraratne, S. P. (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-03-30)

Prolonged flooding changes the oxidation–reduction status of soils, often enhancing P release to overlying floodwater. We studied P release from unamended, gypsum-amended, and biochar-amended soils under simulated snowmelt ...

Temperature and freezing effects on phosphorus release from soils to overlying floodwater under flooded-anaerobic conditions

Kumaragamage, Darshani; Concepcion, Angela; Gregory, Carolyn; Goltz, Doug; Indraratne, Srimathie; Amarawansh, Geethani (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-03-30)

Increased phosphorus (P) availability under flooded, anaerobic conditions may accelerate P loss from soils to water bodies. Existing knowledge on P release to floodwater from flooded soils is limited to summer conditions ...

Putting Local Knowledge into Action: The Forest-Community Innovation Network

Bullock, Ryan; Olynyk, Marika; Diduck, Alan (2017)

The Forest-Community Innovation Network is a locally mandated national network that will support transdisciplinary research, education, and action to advance forest-community sustainability. This newly-formalized network ...

Framing Indigenous Partnerships in Energy and Allied Renewable Resource Sectors. Final Report to the Social Sciences and Humanities Research Council of Canada

Bullock, Ryan; Zurba, Melanie (2017)

Canada is a top five global energy producer and thus is in a leadership position with respect to how it engages in international markets and, increasingly, energy partnerships. Growing global energy demand and international ...