Global Scale P
(T/F) Phosphorus is a fairly nonlabile element.
True
What are the three forms of phosphorus found in soil?
Stable, Liable and Soluble
Phosphorus is essential for this molecule, which is responsible for energy transfer within cells.
ATP
What causes phosphorus buildup in desert dust?
Weathering/erosion
When plant and animal biosolids decompose do they add organic or inorganic phosphorus to the soil?
Organic
What is the ultimate long-term sink for phosphorus?
Deep ocean sediment
True or false, stable phosphorus is a very small part of the total soil phosphorus, but is the fraction taken up by plants.
Flase
Murky, green, and smelly water is an example of phosphorus' link to what ecosystem service?
DNA/RNA, ATP, cell membrane structure
How does Eutrophication cause harm to aquatic life?
Oxygen starvation
What's the biggest pool of phosphorus in soil?
Organic phosphorus
Which system (forest or range) has a smaller organic phosphorus pool?
Rangelands
True or false, microbial organisms and organic acids transform phosphorus into a stable form?
False
What are the symptoms of P deficiency in plants?
Stunting, discoloration, with symptoms primarily appear in old growth first
What process causes phosphorus to reach and contaminate bodies of water?
Leaching or erosion
What's the smallest pool of phosphorus in soil?
Soluble inorganic phosphate
What is an example of a forest system that has high phosphorus availability?
Temperate Deciduous or Riparian forests
Out of the 6 six processes of the phosphorus cycle, which process is most common?
Weathering
How do roots increase their surface area for P uptake?
Lateral growth & greater root hair growth
How does dust affect the biomass growth of trees?
It reduces biomass of trees
Is Ca5(PO4)3Cl an example of a primary or secondary phosphate mineral?
Secondary
What types of soils are able to bind phosphorus easier, and why?
Slightly acidic soils - the presence of iron and aluminum oxides which form strong bonds with phosphorus
Out of the 12 soil orders, _____ and ______ have the highest amount of phosphorus found within them.
Andisolos, Oxisols
Phosphorus is a primary nutrient involved in what genetic processes?
DNA/RNA, ATP, cell membrane structure
What is the main driver of the disturbance of the phosphorus cycle?
Agriculture
What are two changes in soil that could affect the ability of a mineral surface to hold onto the mineral?
Temperature and pH