It starts: --A comparative study of grasslands on six continents suggests there may be a way to counteract the human-made overdose of fertilizer that threatens to permanently alter the biodiversity of the worlds native prairies. The solution is one that nature devised: let grazing animals crop the excess growth of fast growing grasses that can out-compete native plants in an over-fertilized world. And grazing works in a way that is also natural and simple. The herbivores, or grazing and browsing animals, feed on tall grasses that block sunlight from reaching the ground, making the light available to other plants.-- There is no overdose of fertilizer. The problem is only that the natural balance of grazers and grasslands has not always been maintained due to some mistaken ideas that grazers harmed grasslands. That is changing. What can be said is that there are some nutrients in the air due to humans, and temperatures have risen for several reasons, and the result has been increased biomass production. In other words, grasslands are growing better. More grass means more grazers are needed, which is just how nature works. When forage is abundant, grazer populations rise. Its a good time to be a grass farmer. sciencedaily/releases/2014/03/140309150536.htm
Posted on: Sun, 04 Jan 2015 04:42:43 +0000
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