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It is a simple experiment but provides convincing reason for diversity loss. These findings are not likely to be general in temperate grasslands. These findings may be helpful for us to prevent diversity loss in most areas of the world. The study lasted too long and didn’t reach any conclusion about diversity loss.
the sets that were fertilized in normal light were more productive and diverse. the fertilized plants with added light also lost their biodiversity. below-ground competition had no significant impact on the biodiversity of plants. the more fertilizer yon use the more active the plants ar
fishing technology has improved rapidly the catch- sizes are actually smaller than recorded the marine biomass has suffered a greater loss the data collected so far are out of date
they kept their biodiversity as at the beginning of the experiment. they were more active and grew to be bigger. not a single plant in the group died in the process of the experiment. they kept their biodiversity and grew to be bigger at the same tim
They grew 32 plant communities for tour years and then transferred them to a house. They grew four sets of six different species and fertilized them. They add light to halt of these sets, and left the other half growing in normal light conditions. They put the plant communities in different glass houses and observed them separately.
people should look for a baseline that can't work for a longer time fisheries should keep the yield below 50% of the biomass the ocean biomass should restore its original level people should adjust the fishing baseline to changing situation
management efficiency biomass level catch - size limits technological application
whether they can increase the amount of nitrogen and phosphorus available to plants. whether they increase the competition between plants for sunlight or for soil resources. whether adding fertilizers can really increase plant productivity. whether the biodiversity drops due to the fertilizes or some plants die of other reasons.
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