Lowest geographically during the growing season when

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lowest geographically during the growing season when plants are actively photosynthesizing. The Northern Hemisphere has a larger land mass than other regions, hence the greater C0 2 effect. Thanks! Best, Chuck 10 out of 10 points Review Test Submission: Unit VI Assessment – BIO 1302-... ....
Question 8 Describe the effects of temperature, moisture, length of photosynthetic period, and nutrient availability on net primary productivity in terrestrial ecosystems. Give examples in your explanations. 29 out of 30 points Your response should be at least 200 words in length. 4 of 5 6/4/2019, 11:10 AM
Selected Answer: Correct Answer: [None] Response Feedback: Many effects are caused by temperature, moister, length of photosynthetic period, and nutrient availability to the terrestrial ecosystem. One of the key reasons the net primary productivity increases when there is an increase in the annual amount of rainfall and also the increase in the temperature. Which all works together to affect the ecosystem and as they work together with one if one aspect of the ecosystem changes then this will affect the ecosystem as a whole. When there is a higher annual mean temperature recorded this means that the radiation the ecosystem received that year has increased with the temperature. Which in turn also affect the growing season, this will lead to more prolonged exposure of crops to solar heat and will lead to a longer growing season. With a longer growing season for plants, this will, in turn, affect the photosynthetic period since this will be much longer than average if there were lower temperature recorded annually. With a good supply of nutrients such as water, rain and good soil for plants they will thrive if they have all these available for the plant throughout the year while the temperature has risen. Ecosystems are needed to be kept in balance, and they may drop or rise in temperature, but in turn, this will affect everything within it. As long as plants are receiving their vital nutrients, then there is not much to worry about unless the degree is a drastic change which could lead to loss of crops. Vicente - Good overall job on this essay. Net primary productivity (NPP) is the energy that is accumulated in the biomass of a community (NPP – gross primary productivity – respiration). Perhaps the best way to integrate temperature, moisture, length of photosynthetic period, and nutrient availability on NPP in terrestrial ecosystems is to focus at the biome-level scale. Think about tropical rainforests, for example. The length of the photosynthetic period is long in tropical rainforests and neither moisture nor temperature are limiting factors on productivity, so NPP is very high. In contrast, Arctic tundra is cold, relatively dry (save for meltwater in the summer) and the photosynthetic period is low, rendering NPP low as well. There was a typo – moister for moisture (1 point off). Best, Chuck Review Test Submission: Unit VI Assessment – BIO 1302-... ....
Tuesday, June 4, 2019 10:10:41 AM CDT 5 of 5 6/4/2019, 11:10 AM

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