<div dir="ltr"><p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Hei,<span></span></span></p><p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><br></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Koska
kluuvit ovat myös lintupaikkoja, laitanpa tännekin:<span></span></span></p><p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><br></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Siiran
Olli-Pekka Siira väittelee torstaina! Ala on (muodollisesti) maaperägeologiaa. <span></span></span></p><p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><br></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:13.5pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><a href="http://www.oulu.fi/yliopisto/node/45510" target="_blank"><span lang="FI" style="font-size:12pt">http://www.oulu.fi/yliopisto/node/45510</span></a></span><span lang="FI" style="font-size:13.5pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><span></span></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif"><span> </span></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:13.5pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Väitöstilaisuus</span><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif"><span></span></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">torstai 13.4.2017 12:00<span></span></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Linnanmaa, luentosali IT 116<span></span></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><span> </span></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif"><span> </span></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:13.5pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Perämeren
maankohoamisrannikon muuttuva järviluonto<span></span></span></p><p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:13.5pt;font-family:"times new roman",serif;color:rgb(33,34,36)"><br></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Perämeren
maankohoamisrannikolla uusia järvialtaita syntyy jatkuvasti. Järvialtaita
muodostuu pääasiassa kahdella tavalla: merenlahdekkeiden kuroutumisen ja
dyynilampien patoutumisen seurauksena. Väitöstutkimus sisältää tutkimuskohteita
Hailuodon, Oulunsalon, Lumijoen, Kuivaniemen ja Simon alueilta.<span></span></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Maaperän
geokemiallisilla ominaisuuksilla on suuri merkitys järvialtaiden ravinteisuuden
kehittymiselle. Hailuodon tutkimuskohteilla havaittiin, että merellisen
vaikutuksen vähetessä maankohoamisrannikon järvialtaat luontaisesti
karuuntuvat, happamoituvat ja soistuvat. Järvialtaat voitiin luokitella veden
laadun, pohjasedimentin geokemian ja piikuoristen levien lajiston perusteella viiteen
eri ryhmään, jotka edustavat maankohoamisrannikon järvialtaiden eri
kehitystasoja. Tunnusomaista ranta-altaille verrattuna sisämaan altaisiin
olivat korkeammat suolojen ja ravinteiden pitoisuudet.<span></span></span></p>
<p class="MsoNormal" style="line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="FI" style="font-size:12pt;font-family:"times new roman",serif;color:rgb(33,34,36)">Väitöstutkimuksessa
kuvataan tieteellisin menetelmin maankohoamisrannikon vesiluontotyyppien,
fladojen ja kluuvilampien, ravinneverkostojen kehittymistä. Luonnonmukaisesti
kehittyneen järviallassarjan veden laadun, maaperän ja sedimentin geokemian
sekä sedimentin piileväkoostumuksen tutkimus tarjoaa tausta-arvoja, joita
voidaan hyödyntää esimerkiksi arvioitaessa vesialueen tilaa
ympäristötutkimuksissa.<span></span></span></p></div>