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[{"key": "dc.contributor.author", "value": "Kovanen, Jussi", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2013-08-30T12:11:40Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2013-08-30T12:11:40Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2013", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1278895", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/42050", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ty\u00f6ss\u00e4 tutkittiin Keski-Suomessa sijaitsevan 30 vuotta toimineen teollisen turpeenottoalu-een kuormitusvaikutusta alapuoliseen vesist\u00f6\u00f6n. Alueen kiintoaine- ja humuskuormituksen mittaamiseksi ker\u00e4ttiin laskeutuvaa kiintoainetta kahdessa Saarij\u00e4rven reittiin kuuluvassa j\u00e4rvess\u00e4 nelj\u00e4n\u00e4 osajaksona noin 12 kk:n ajan avovesikaudella 2011 ja talvella 2011 \u2013 2012. Turpeenottoalueen kuivatusvedet ensin vastaanottavassa Pirttij\u00e4rvess\u00e4 kuormitusta mitattiin laskuojan yl\u00e4- ja alavirran vertailuna. Noin 17 km alavirtaan p\u00e4in sijaitsevalla Mahlunj\u00e4rvell\u00e4 tutkimus toteutettiin et\u00e4isyyssarjana turpeenottoalueilta laskevan joen suulta. \n\nKertyneen laskeutuvan kiintoaineen kertym\u00e4nopeus arvioitiin, ja siit\u00e4 m\u00e4\u00e4ritettiin orgaani-sen ja ep\u00e4orgaanisen aineen osuudet, orgaaninen kokonaishiili, kokonaistyppi sek\u00e4 aerobi-nen ja anaerobinen biohajoamispotentiaali. Kiintoaineen l\u00e4hdett\u00e4 arvioitiin hiilen ja typen stabiilien isotooppien suhteiden sek\u00e4 C:N-suhteen avulla. Lis\u00e4ksi j\u00e4rvien vedenlaatua seurattiin mahdollisena turpeenoton kuormitusvaikutuksena.\n\nLaskeutuvan kiintoaineen keskim\u00e4\u00e4r\u00e4inen kertym\u00e4nopeus oli Pirttij\u00e4rvess\u00e4 600 g m-1 a-1 ja Mahlunj\u00e4rvess\u00e4 1600 g m-1 a-1 kuiva-ainetta. Mahlunj\u00e4rven kertym\u00e4nopeus oli samansuu-ruinen kuin Saarij\u00e4rven reitin muilla j\u00e4rvill\u00e4. Kiintoaineen havaittiin poikkeavan ominaisuuksiltaan suhteessa sijaintiin oletetusta p\u00e4\u00e4st\u00f6l\u00e4hteest\u00e4. Lis\u00e4ksi kiintoaineen hapenkulu-tuspotentiaali (mg l-1 O2 g-1 kuiva-ainetta) kasvoi suhteessa p\u00e4\u00e4st\u00f6l\u00e4hde-et\u00e4isyyteen. T\u00e4m\u00e4n arveltiin johtuvan suuremmasta pitk\u00e4lle hajonneen alloktonisen orgaanisen aineen osuudesta p\u00e4\u00e4st\u00f6l\u00e4hteiden l\u00e4heisyydess\u00e4. \n\nTutkimusj\u00e4rvien p\u00e4\u00e4llysveden v\u00e4ri suureni sek\u00e4 n\u00e4k\u00f6syvyys ja pH laskivat avovesikaudella. Pirttij\u00e4rven todettiin olevan hypoksinen l\u00e4hes koko avovesikauden ajan. Kes\u00e4 2011 oli hyvin sateinen, mutta tutkimuksessa havaittujen kuormitusvaikutusten ep\u00e4iltiin johtuvan osittain turpeenotosta. Osuuden suuruutta ei voitu kuitenkaan arvioida.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Aquatic loading of a 30-year-old industrial peat mining area was estimated by collecting settleable particulate matter on two lakes belonging to the Saarij\u00e4rvi watercourse in Central Finland. Measurements were carried out over 12 months in four periods during the ice-free season in 2011 and winter of 2011 \u2013 2012. Loading rates were measured up- and down-stream to an outlet ditch in a small headwater lake, Lake Pirttij\u00e4rvi. In Lake Mahlunj\u00e4rvi, situating 17 km further downstream, measurements were carried out as a distance series downstream to a river suggested of being the main source for loading. \n\nParticulate matter obtained from sedimentation traps was analyzed for organic and inor-ganic contents, total organic carbon, concentration of total nitrogen, and aerobic and an-aerobic decomposition rates. Sedimentation rates were calculated. The source for particu-late matter was estimated using stable isotope analysis and the C:N-ratio. The water quality of the lakes was monitored as a potential indication for anthropogenic loading due to peat mining.\n\nAverage sedimentation rate was 600 g m-2 a-1 d.w. in Lake Pirttij\u00e4rvi and 1600 g m-2 a-1 d.w. in Lake Mahlunj\u00e4rvi. In Lake Mahlunj\u00e4rvi the rate was similar to those measured in the other lakes of the Saarij\u00e4rvi watercourse. The characteristics of the collected particulate matter varied in relation to the distance from suggested load sources. In addition, the po-tential oxygen demand (mg l-1 O2 g-1d.w.) of the particulate matter correlated with the dis-tance from load sources. It was suggested that this was due to increased proportion of al-lochthonous and more decomposed organic matter near load sources. \n\nOver the ice-free period the water color increased and pH and Secchi disc visibility de-creased in both lakes. Lake Pirttij\u00e4rvi was hypoxic during most of the ice-free period. Overall, precipitation was higher than average during the summer of 2011. Peat mining was however considered to be one of the causes for these observations, although it remained uncertain to what extent.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Jussi Kovanen (jutopeko) on 2013-08-30 12:11:39.245944. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2013-08-30T12:11:40Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201308302212.pdf: 2430123 bytes, checksum: cfa8b54c4256e734c7b9049391b44ffd (MD5)\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2013-08-30T12:11:40Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201308302212.pdf: 2430123 bytes, checksum: cfa8b54c4256e734c7b9049391b44ffd (MD5)\nlicense.html: 107 bytes, checksum: a7d86e598caa500b1b433bbb9dc8ef1c (MD5)\n Previous issue date: 2013", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto.", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "turpeenotto", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "humusaineet", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "humus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kiintoaine", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kiintoaine- ja humuskuormitus teollisen turpeenottoalueen alapuolisessa vesist\u00f6ss\u00e4", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201308302212", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ymp\u00e4rist\u00f6tiede ja -teknologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science and technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2013-08-30T12:11:40Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4015", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "turpeennosto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "maa-aineksen otto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "turvetalous", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "humus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kiintoaines", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "vesist\u00f6nkuormitus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Keski-Suomi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "Saarij\u00e4rvi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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