https://padlet.com/dspooner1/i42cq3iv3f6jn5dp en-us 2022-09-27 07:08:15 UTC 2026-01-24 00:03:47 UTC hello@padlet.com valeriiaberkovskaia https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315055041 Sahara desert is a biome that, has little rainforests less than 50 centimeters per year. Sahara's temperatures vary greatly between day and night between 30-47 degrees. It has very hight evaporation rate.  

The NPP of Sahara Desert is about 500 kilocalories/m2/year. 

One of the major limiting factors of NPP is low availability of  water. The absence of water will prevent most plants surviving and, hence, productivity is minor, as water limits productivity because water is a key ingredient of photosynthesis.

http://resources.hwb.wales.gov.uk/VTC/env-sci/w23_id_nppterr.htm 
https://homework.study.com/explanation/what-are-the-limiting-factors-in-a-desert-biome.html  ]]> 2022-09-27 07:15:34 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315055041 https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315056499 The tundra has some of the lowest NPP of any ecosystems with mean productivities range from 10-400 g m^-2 yr^-1, with a mean of 140 g m^-2 yr^-1.
Solar energy input : 

Moisture levels:

Temperature: 

CO2 levels:

Growing season length:

Plant adaptation: Some of the plants developed stems that grow horizontally ]]> 2022-09-27 07:16:31 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315056499 annakonovalova https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315059902 Coral reefs are among the most productive ecosystems on the planet.

NPP: 2000 g/(sq m x yr)

Limiting factors:
- temperature 
- light 
- salinity
- ocean waves + currents


http://resources.hwb.wales.gov.uk/VTC/env-sci/w23_id_npp_sea.htm#:~:text=NPP%20is%20high%20in%20coral,nutrient%20supply%20to%20the%20algae.]]> 2022-09-27 07:19:06 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315059902 https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315064590 Russian taiga is an ecoregion within the taiga and boreal forests biome. In Russia, the world's largest taiga stretches about 5,800 kilometers, from the Pacific Ocean to the Ural Mountains.]]> 2022-09-27 07:22:25 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315064590 https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315074028 The southern ocean surround the large island of Antarctica. It comprises over 20% of the worlds seawater, and has varying NPP based on a number of factors

1. Season. The net primary productivity of this ocean largely depends on the season. Change in season often involves temperature variation and weather variations.   
2. Global Warming. When the sea surface temperature increases beyond the seasonal average, the net primary productivity decreases given that less plankton (producers) are able to survive. Hence NPP decreases.
3. Sea level. An increase in sea level creates more surface are for plankton to grow. This will directly impact the NPP of this ocean, and essentially any ocean.

]]> 2022-09-27 07:29:08 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315074028 https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315076562 NPP: 2200 g/(sq m x yr)
variations in the amazon rainforest are caused by a number of variables: 
- drought frequency
-]]> 2022-09-27 07:30:50 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315076562 evelinagoryachkina https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315077424 "Sam McNaughton's experiments have estimated that there is a 66% Net Primary Productivity Rate in the Serengeti. This is so high compared to most regions because the majority of the animals are in the second trophic level. Most of them are large herbivores so a lot of the nutrients are transferred to these animals."]]> 2022-09-27 07:31:26 UTC https://padlet.com/dspooner1/i42cq3iv3f6jn5dp/wish/2315077424