ch 6 Flashcards
1
Q
A
2
Q
what is the range of organic carbon soil turnover
A
3 to thousands of years depending on the place. Average time in US is 46 years
3
Q
what does low nutrient concentration do to plants
A
Encourages increase in root to shoot ratio. this expands the soil volume and reduces diffusion distances - low P soils= high root growth
4
Q
explain soil nitrogen availability differences
A
varies bc of nitrifcation processes; diff species prefer faster nitrifcation process ( nh4 and no3-)
