Example for Zeulenroda Reservoir:

 

 

Are current and future nutrient loads under sufficient control in order to meet the target level for this water-body?

 

 

W

P

H

?

Your assessment of the situation

 

Uncertainty of this assessment

 

 

Assessment through site inspection

 

 

X

 

Site inspection largely confirmed the land use assumptions which feed our loading model, although it also indicated that some of the farms in the catchment no longer appear to be operated.

Overall good confirmation of the data.

 

Assessment through modelling loads

 

 

X

 

Modelling loads showed them o be about twofold above the target level that was determined for Reservoir Z.

Weaknesses of the load model are the depiction of small-scale variability in land use. Overall however, model predictions are well supported by the loading measurements available. Also, definition of the target load is uncertain because its availability for cyanobacterial growth in the reservoir is unclear (see Report by Opitz et al. 2004).

 

Overall information basis is satisfactory; improving load estimate currently should not be a priority.

W = well under control
P = partially under control
N = not sufficiently controlled
? = no information

 

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