they basically don't get enough water through out the year.Or for a better reason is that your average grassland does not get the right volume of water for a tree of any type to survive or a simpler answer is that it is to dry.
The lack of moisture during the dry season prevents trees from growing.....
desert
grassland,tundra,desert,taiga,marine
The process of grassland turning into a forest is called afforestation. This typically happens over a long period of time as trees gradually establish themselves and overtake the grassland.
Tropical rainforest Savanna Desert Mediterranean shrubland Temperate grassland Deciduous forest Coniferous forest Tundra Alpine vegetation Polar ice caps
The lack of moisture during the dry season prevents trees from growing.....
in a grassland, forest fires, runoff, droughts
desert
grassland,tundra,desert,taiga,marine
a forest a jungle or a grassland
water forest grassland
Forest have many species of wild animals Grassland have many species of insects.
it lives in a boreal forest
forest of Africa
The process of grassland turning into a forest is called afforestation. This typically happens over a long period of time as trees gradually establish themselves and overtake the grassland.
A grassland
Tundra Boreal Forest Temperate Deciduous Forest Grassland