Acids and bases in natural water; alkalinity, pH and buffer capacity - Nutrient loads and exports - Nutrient retention
3 important questions on Acids and bases in natural water; alkalinity, pH and buffer capacity - Nutrient loads and exports - Nutrient retention
What is nutrient retention?
The difference between inputs and the exported loads.
The difference between the incoming load and the exported load within a certain timeframe and within certain spatial boundaries.
Timeframe: season or year, but depending on the scope of research
spatial boundaries: catchment, network of ditches, river stretch or lake
The difference between the incoming load and the exported load within a certain timeframe and within certain spatial boundaries.
Timeframe: season or year, but depending on the scope of research
spatial boundaries: catchment, network of ditches, river stretch or lake
What are the two cases of nutrient retention?
Outgoing load < incoming load: water system acts as sink for nutrients. Retention has positive value.
Outgoing load > incoming load: for instance in lakes with laoded sediments or streams during periods of high flow conditions. Retention has negeative value.
Outgoing load > incoming load: for instance in lakes with laoded sediments or streams during periods of high flow conditions. Retention has negeative value.
What are the main processes that remove N and P from the water phase?
-sedimentation
-uptake by primary producers (algae and macrophytes)
-denitrification (just N), see par III>
-uptake by primary producers (algae and macrophytes)
-denitrification (just N), see par III>
Try our study magic for free
a PDF, study it super fast
- No sign up, email or credit card needed!
- AI makes unlimited flashcards
- Get unlimited quizzes and tests
- Ask AI anything
Create a notebook
- No sign up, email or credit card needed!
- Have and keep perfect overview
- Make flashcards, notes and mind maps
- Review, test and score!
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
