Imaginary
example for Dam Y:
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
|
|
|
|
¾
of the catchment is used for forestry, with some game-keeping, hunting,
lumbering with the latter causing fairly intensive erosion locally ¼
is pasture, extensively used with limited heads of stock per hectare; small
settlement of about 30 dwellings (using septic tanks or latrines), incl.
stables for up to 100 heads of stock. This is about 0.5 km away from the next
brook; presumably no direct surface run-off |
No modelling of
catchment loading was undertaken, but as long as the size of the human
population, stock density and forestry activities do not increase, this is
not deemed necessary, as the very good status of the reservoir indicates loading
to be below critical limits. Socio-economic considerations indicate further
reduction rather than increase of land use (depopulation of the region). Should this change
contrary to expectation, i.e. population grow or land use intensify, loads
should be determined before granting such activities. |
|
Assessment through modelling loads |
|
|
|
X
|
No modelling done |
W = well under control
P = partially under control
N = not sufficiently controlled
? = no information
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