BIO 311D Lecture 6: Lecture 6
Document Summary
Positive relationship: if the precipitation is seasonal (meaning it doesn"t rain year-round), then you are most likely going to be unproductive compared to your counterparts with a longer growth season. Because of this, you won"t accumulate much biomass (energy) Keep in mind that the line does not grow exponentially. The reason being that if it rains too much, then the law of diminishing returns will kick in. Positive relationship: moderately high temperatures boost productivity. Length of growing season ( photosynthetic period ) vs. productivity (slide 86) Positive relationship: on average, the longer the photosynthetic period, the higher the productivity. Positive relationship: the higher the nutrient concentration (i. e. nitrogen, phosphorous, potassium), the higher the productivity. Plant growth is limited by all nutrients (slide 89): this means if you"re lacking one nutrient, then you will have a decrease in productivity. Body weight vs. productivity (metabolism) (slide 90)
