Article
Biodiversity Conservation
Ying Bai, Qiufang He, Ziqi Liu, Ze Wu, Shiyou Xie
Summary: Investigating the impact of ecological restoration and lithological differences on soil nutrients in karst regions, we found that topsoil is more sensitive to restoration and exhibits significant differences in pH and nutrient content between dolomite and limestone areas. Shrub recovery plays a crucial role in rapid accumulation of soil carbon and nitrogen in dolomite areas following agricultural abandonment.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Environmental Sciences
Edward J. Kellaway, M. Catherine Eimers, Shaun A. Watmough
Summary: This study reveals that the legacy effects of soil liming can last for several decades, with the most significant impact seen in the forest floor (FH), although the effects are relatively modest, and a considerable amount of limestone may have been lost due to erosion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agronomy
Mary Ruth McDonald, Brian Collins, Lindsey DuToit, Kwasi Adusei-Fosu
Summary: The research conducted in Ontario, Canada found that the application of dolomitic limestone can significantly reduce the incidence of Fusarium wilt in bunching spinach production. In 2014, the fumigant chloropicrin provided the best control of the spinach fusarium wilt pathogen. However, Brassica juncea and calcium cyanamide were not effective at suppressing the disease.
Article
Ecology
Amanda L. L. Loder, Sophia A. A. Zamaria, George B. B. Arhonditsis, Sarah A. A. Finkelstein
Summary: Freshwater marsh restoration is a potential natural climate solution, but the preservation of organic carbon in marsh soils over policy-relevant timescales is uncertain. Comparative analysis of undrained reference marsh, passively restored marsh, and actively restored marshes in Canada showed that the reference site had the highest organic carbon accumulation and mass, while restored wetlands had variable organic carbon masses. Passive restoration generated high rates of organic carbon accumulation in low-lying sites with appropriate substrate and hydrology. Active restoration measures may promote organic carbon preservation, especially in fine-grained soil. The selection of restoration sites should consider substrate, topographic gradient, and hydrology for maximizing carbon sequestration.
RESTORATION ECOLOGY
(2023)
Article
Environmental Sciences
Yue Wan, Jingxiong Zhang, Wangle Zhang, Ying Zhang, Wenjing Yang, Jianxu Wang, Okafor Somtoochukwu Chukwunonso, Asurapplullige Milani Tharuka Nadeeka
Summary: In response to uncertainty in remotely sensed land cover products, this paper presents the integrative method CCAErrMat for uncertainty characterization and utility enhancement. The method uses reference-map cover type co-occurrence analyses based on error matrices in canonical correspondence analysis (CCA) ordination space to overcome the sparsity of reference sample data. The method predicts reference class probabilities at individual pixels and uses them as auxiliary variables for model-assisted area estimation, enhancing the utilities of land cover maps.
Article
Environmental Studies
Boglarka Nemeth, Karoly Nemeth, Jon N. Procter
Summary: Ordination methods are used to reduce dimensions and arrange variables in ecological multivariate statistics, while geoheritage designation poses a new challenge for conservation planning. Quantification of geoheritage has the potential to be an indicator of sustainable development and needs to be integrated into conservation planning models. Statistical analysis can reveal correlations between informative geoheritage practices and successful implementation outcomes, highlighting a shift towards disciplines like tourism, sustainability, and biodiversity in the context of world development metrics.
Article
Environmental Sciences
Brigitte Simmatis, Andrew M. M. Paterson, John P. P. Smol
Summary: Base metal smelting in Sudbury (Ontario, Canada) has caused significant environmental degradation since the late nineteenth century. The impact of past contamination is still evident in the region, despite remedial actions. Little is known about the response of chironomids to base metal smelting contaminants. This study examined the distribution of modern chironomid assemblages in 64 lakes and found a relationship with lake depth. The comparison of pre-1880 assemblages with recent sediments revealed the replacement of sensitive taxa with tolerant species and early colonizers, and a decrease in chironomid diversity.
Article
Environmental Sciences
N. Rodriguez-Berbel, R. Soria, R. Ortega, M. E. Lucas-Borja, I Miralles
Summary: Organic amendments can improve the quality and fungal diversity of degraded soils in mining areas, placing them between unrestored soils and undisturbed reference soils. Different types and origins of organic amendments significantly impact the fungal communities of restored soils, with sewage-treated soils potentially providing more readily biodegradable organic matter and promoting fungal growth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
E. Varga, T. Reid, S. O. C. Mundle, C. G. Weisener
Summary: This study investigates the impact of greenhouse operations in Leamington, Ontario on nutrient concentrations in river systems in the Canadian Lake Erie watershed. The research reveals correlations between water column nitrogen to phosphorus ratios and sediment nutrient retention capacity, as well as differential gene expression related to microbial metabolism. These findings highlight the significance of understanding ecosystem processes such as nutrient loading and retention dynamics in impaired freshwater systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
R. L. Fleming, P. W. Uhlig, D. M. Morris, M. Kwiaton, K. A. Baldwin, P. W. Hazlett, K. I. Webster, K. A. Chapman
Summary: Soil nutrient regimes (SNRs) are related to soil chemistry regimes (SCRs), and the relationship between them can be considered when determining SNRs and SCRs. CEC, pH, and BaSat showed good correspondence across horizons and accounted for much of the variation in chemical properties. The accuracy of SNR and SCR classifications ranged from 31% to 39%, but increased to 80% to 86% when SNR values were within +/- 1 SCR class. Classification trees identified pH class, soil texture, and overstory composition as the principal factors related to SCR classifications.
CANADIAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Hui Wei, Yusong Deng, Liwen Lin, Jinyue Wang, Juan Huang
Summary: This study investigates the relationship between soil structure and nutrient content during vegetation restoration in a karst peak-cluster depression. The results show that vegetation restoration enhances the formation of larger soil aggregates and increases the content of organic matter and nutrients. The composition of soil aggregates determines the distribution of nutrients.
Article
Water Resources
Kara L. Webster, Jason A. Leach, Paul W. Hazlett, Robert L. Fleming, Erik J. S. Emilson, Daniel Houle, Kara H. Y. Chan, Fariborz Norouzian, Amanda S. Cole, Jason M. O'Brien, Karen E. Smokorowski, Stephanie A. Nelson, Shelagh D. Yanni
Summary: The Turkey Lakes Watershed (TLW) study is a federal interdepartmental study established in 1979 to investigate the effects of acid rain on terrestrial and aquatic ecosystems. This multidisciplinary study conducted at the 10.5 km(2) watershed in the Eastern Temperate Mixed Forest on the Canadian Shield has evolved from focusing on acidification to investigating the effects of climate change, forest harvesting, and other forest ecosystem perturbations. The comprehensive data collected have contributed to over 400 published research papers and influenced pollutant emission and resource management policies at provincial, national, and international levels.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
Catarina Jakovac, Katarzyna A. Korys, Aline F. Rodrigues, Amanda Ronix, Fernanda Tubenchlak, Lara M. Monteiro, Luisa Lemgruber, Herlle Souza Santos, Maiara Mendes, Andre B. Junqueira, Renato Crouzeilles, Veronica Maioli, Agnieszka E. Latawiec
Summary: Ecosystem restoration strategies vary in techniques and ecological contexts. Success in restoring plants, animals, and soils varies, as well as across ecological indicators. Assisted natural regeneration has higher success compared to other strategies, but restoring converted and degraded areas poses challenges.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Review
Green & Sustainable Science & Technology
Runa R. Das, Mari Martiskainen, Lindsey M. Bertrand, Julie L. MacArthur
Summary: This paper examines initiatives that assisted energy poor and energy vulnerable households in Ontario, Canada during 2003-2018. It provides a conceptualization for energy poverty and vulnerability and discusses the history of Ontario's energy sector. The paper concludes that a more comprehensive approach is needed to address the underlying causes of energy poverty.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Ecology
Hirofumi Kajino, Misaki Fukui, Yutaro Fujimoto, Rei Fujii, Tomohiro Yokobe, Chikae Tatsumi, Tetsuto Sugai, Naoki Okada, Ryosuke Nakamura
Summary: Plants growing on karst soils often suffer from phosphorus deficiency due to the high pH and low phosphorus availability. This study compared the soil properties and nutrient concentrations in leaf litter of two forests in Japan, one on karst soil and the other on non-karst soil, and analyzed the nutrient concentrations in live leaves of four dominant tree species. The results showed that the karst soil had higher pH, phosphorus concentrations, and calcium availability but lower potassium availability compared to the non-karst soil, and the karst forest had higher litter nitrogen concentration.
ECOLOGICAL RESEARCH
(2023)