Lecture9_ANOVA2 - Cyanobacterial blooms in China TaihuLake

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Photo from China.com Dianchi Lake  Photo from ChinaDaily.com  Chaohu Lake * photo from China State EPA’s website Taihu Lake  Cyanobacterial blooms in China
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Nutrients P, N:P Temperature (15-30 C) Water movement Cyanobacterial Blooms Toxins Oxygen Water quality others Hydrology Climatic conditions Watershed disturbance pH Water depth Human health Wildlife health Domestic animals Recreational use Aquatic life Including fish Odor and taste Aesthetic (scum) BOD Formation of Cyanobacterial Blooms
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Ho: μ c p n p+n Hypothesis test Ha: μ c ≠μ p ≠μ n ≠μ p+n Hypothesis: Nutrient enrichment has no effects on algal biomass Statistical hypothesis:
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C C C C P P N N P N P N N P P Controls, replication, randomization, and independence One factor with 4 levels Each level has 4 replications a=4 n=4 One-way ANOVA design N P N P N
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Population Sample 1 Sample 2 Sample 3 Sample 4 Population versus sample Population versus sample
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Lake mesocosm experiment
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Treatment Biomass Control 9 Control 11 Control 11 Control 12 P 12 P 13 P 15 P 16 N 10 N 12 N 12 N 13 P+N 24 P+N 19 P+N 28 P+N 25
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Y=15.13 Grand mean
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Y=15.13 Y p+n =24.00 Group mean Grand mean
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Y=15.13 Y p+n =24.00 Deviation From its Grand mean
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This note was uploaded on 01/12/2012 for the course ENVIRONMET 340 taught by Professor Dr.pan during the Winter '11 term at Portland State.

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Lecture9_ANOVA2 - Cyanobacterial blooms in China TaihuLake

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