Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Peter Österholm"'
Autor:
Virginia Estévez, Stefan Mattbäck, Anton Boman, Pauliina Liwata-Kenttälä, Kaj-Mikael Björk, Peter Österholm
Publikováno v:
Geoderma, Vol 447, Iss , Pp 116916- (2024)
Imbalanced datasets are one of the main challenges in digital soil mapping. For these datasets, machine learning techniques commonly overestimate the majority classes and underestimate the minority ones. In general, this generates maps with poor prec
Externí odkaz:
https://doaj.org/article/2b5f410b145d4ce7bf376accd5a27ade
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 95, Iss 2, Pp 135-160 (2024)
Acid sulfate soils (ASS) cause big problems worldwide due to their potential to form sulfuric acid during oxidation of sulfidic materials, resulting in very acid soil (pH
Externí odkaz:
https://doaj.org/article/281b572795664e6399281ed374a6e091
Autor:
Virginia Estévez, Stefan Mattbäck, Anton Boman, Amélie Beucher, Kaj-Mikael Björk, Peter Österholm
Publikováno v:
Frontiers in Environmental Science, Vol 11 (2023)
Acid sulfate soils can cause environmental damage and geotechnical problems when drained or exposed to oxidizing conditions. This makes them one of the most harmful soils found in nature. In order to reduce possible damage derived from this type of s
Externí odkaz:
https://doaj.org/article/6627111656384ce3a7a30691fa7ed8b2
Autor:
Eva Högfors-Rönnholm, Daniel Lundin, Diego Brambilla, Stephan Christel, Margarita Lopez-Fernandez, Tom Lillhonga, Sten Engblom, Peter Österholm, Mark Dopson
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-13 (2022)
Distinct distributions of microbial communities are present across potential acid sulfate soils, the overlying transition zone and actual sulfate soils, according to genomic and transcriptomic analyses of an acid sulfate soil profile in Finland.
Externí odkaz:
https://doaj.org/article/e5a8368f024a4762b1e9e27c533acff7
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 93, Iss 1, Pp 19-30 (2021)
Speciation of inorganic sulfur species, mainly pyrite and metastable iron sulfides by operationally defined methods, is widely used for risk assessment of acid sulfate soils by quantifying the acidity producing elements, as well as for general charac
Externí odkaz:
https://doaj.org/article/b63201883c67416d8be9a4794c38ae01
Publikováno v:
Mine Water and the Environment. 42:24-39
Mine waters are a significant point source stressor for aquatic environments, not only due to their acidity and high metal concentrations, but also because of their high electrolyte concentrations. Ion-rich mine waters can disturb the seasonal mixing
Flocculation of riverine dissolved organic matter to the particulate form in estuaries is an important mechanism for capturing dissolved metals to newly formed organic particles, regulating the metal transport to the sea. The process is particularly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48c8fe51698a5ff67c96e9e654682dde
https://bg.copernicus.org/preprints/bg-2023-53/
https://bg.copernicus.org/preprints/bg-2023-53/
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 93, Iss 1, Pp 19-30 (2021)
Speciation of inorganic sulfur species, mainly pyrite and metastable iron sulfides by operationally defined methods, is widely used for risk assessment of acid sulfate soils by quantifying the acidity producing elements, as well as for general charac
Rivers draining the acid sulphate soils of western Finland are known to deliver large amounts of trace metals (e.g. Al, Cd, Co, Cu, La, Mn, Ni and Zn) with detrimental environmental consequences to the recipient estuaries in the eastern Gulf of Bothn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee25e2e188bf341f4398fd4f62c6c43f
https://doi.org/10.5194/egusphere-egu22-8632
https://doi.org/10.5194/egusphere-egu22-8632
Autor:
Virginia Estévez, Peter Österholm, Jaakko Auri, Anton Boman, Stefan Mattbäck, Kaj-Mikael Björk, Amélie Beucher
Publikováno v:
Estévez, V, Beucher, A M, Mattbäck, S, Boman, A, Auri, J, Björk, K-M & Österholm, P 2022, ' Machine learning techniques for acid sulfate soil mapping in southeastern Finland ', Geoderma, vol. 406, 115446 . https://doi.org/10.1016/j.geoderma.2021.115446
Acid sulfate soils are one of the most environmentally harmful soils existing in nature. This is because theyproduce sulfuric acid and release metals, which may cause several ecological damages. In Finland, the occurrenceof this type of soil in the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c362d869c948e00f74ceb16e3d2ee03
https://pure.au.dk/portal/da/publications/machine-learning-techniques-for-acid-sulfate-soil-mapping-in-southeastern-finland(1bbf5f84-704d-4ede-89a3-dfd7402ec623).html
https://pure.au.dk/portal/da/publications/machine-learning-techniques-for-acid-sulfate-soil-mapping-in-southeastern-finland(1bbf5f84-704d-4ede-89a3-dfd7402ec623).html