Presentation is loading. Please wait.

Presentation is loading. Please wait.

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.

Similar presentations


Presentation on theme: "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."— Presentation transcript:

1 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

2

3 Liming successful at low and medium flow Liming insufficient at high flow

4

5

6

7 Brain Walch Byr Rhiw

8

9

10

11

12

13

14

15

16 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


Download ppt "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."

Similar presentations


Ads by Google