Record Details
page 3-50
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 3-50 Phase II summary report (final) : Utah Lake water quality, hydrology and aquatic biology impact analysis summary for the irrigation and drainage system--Bonneville Unit, Central Utah Project, page 3-50 |
| Coverage | Electronic reproduction; |
| Format | 3-50 text/PDF |
| Rights | Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public |
| Language | English; eng; en |
| Relation | Central Utah Project; Western Waters Digital Library; var angustissima will show a decrease in importance value after diking since they are significantly more abundant in provo bay than in other parts of the lake at the present time several other relative changes in importance value of diatom species also will occur to reiterate all changes are rather minor and the nature of the planktonic diatom flora will remain relatively unchanged one factor that may modify these predictions is the introduction of massive nutrient inputs into the main body of the lake after the diking of provo bay this bay presently acts as a biological filter for large amounts of algal nutrients the two most important of these being nitrogen and phosphorus the amounts of these two nutrients entering utah lake through provo bay are very high for instance approximately 45 percent of the total phosphorus and 50 percent of the total nitrogen entering utah lake is introduced through provo bay the annual amounts of these nutrients are roughly 90000 kg 200000 ibs lbs of phosphorous of which about 40500 kg 90000 ibs lbs are introduced into provo bay and 900000 kg 2000000 ibs lbs of nitrogen of which about 450000 kg 1000000 ibs lbs enter provo bay the diking of provo bay will have a strong influence on the fate of these nutrients presently large amounts of these nutrients are tied up in provo bay in biomass and in sediment complexes this is more significant with phosphorus it has been estimated that up to 50 percent of the phosphorus entering provo bay at the present time is tied up and does not enter the main body of the lake with the diking of provo bay this phophorus phosphorus phopho rus will be introduced directly into the main lake this amount of phosphorus introduced directly into the main lake will cause an increase in algal production this can presently be seen in areas of the lake which currently receive significant nutrient inputs eg powells slough american fork sewage outflow such areas show significant increases in algal standing crop often creating very large blooms the same phenomenon will occur in the vicinity of provo bay following diking and could create a significant decrease in biological water quality this is the case even though the lake is already eutrophic that is the introduction of these nutrients will 3 50 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/9165 |
