ISAC Irfon surveys
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ISAC Irfon surveys Diatoms Water chemistry PowerPoint PPT Presentation


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ISAC Irfon surveys Diatoms Water chemistry. Ingrid Jüttner National Museum Wales. Pre-ISAC liming Jan 2011 June 2011. Post-liming Sep 2011 Dec 2011 Feb 2012 May 2012. Liming successful at low and medium flow. Liming insufficient at high flow. Brain Walch Byr Rhiw. Conclusions.

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ISAC Irfon surveys Diatoms Water chemistry

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Isac irfon surveys diatoms water chemistry

ISAC Irfon surveys

Diatoms

Water chemistry

Ingrid Jüttner

National Museum Wales

Pre-ISAC liming

Jan 2011

June 2011

Post-liming

Sep 2011

Dec 2011

Feb 2012

May 2012


Isac irfon surveys diatoms water chemistry

Liming successful

at low and medium

flow

Liming insufficient

at high flow


Isac irfon surveys diatoms water chemistry

Brain

Walch

Byr

Rhiw


Isac irfon surveys diatoms water chemistry

Conclusions

pH is higher after liming during low and medium flow,

but not during high flow

pH during ISAC is higher than during pHISH

More acid sensitive diatoms found after the summer 2011 liming

Very few effects of the spring 2012 liming after prolonged rain fall


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