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
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).
Review Test Submission: Unit VI Assessment – BIO 1302-...
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