 the grassland first are contents Definition of grasslands then the climatic conditions in grasslands the soil conditions in grasslands and the types of grasslands So students subsequently Graham simply but can what are grasslands? So grasslands mean grassland So mean these are the biomes or these are the systems are the patches of land We are mainly grasses are dominating Yes, it means. It's a system. Yes, I have grasses. Yeah, they mainly dominate Okay, generally, I'm thinking you might miss different types of biomes. Yes, it's a coniferous for us So he is a biome of a coniferous, you know, the burry trees who have a dominant carotid DCDs for us can do Joe Leaves co-shadow of carnivorous Broadleaves, you know, the plants that have a dominant carotid Is it a say grasslands? These are the type of biomes. Yes, he biomes types. I just can't are mainly different types of grasses You have a dominant karenke unit trees were a dominant karenke. Okay, the main dominating plants will be there actually the grasses So if you look at the grasslands, they count from 20 to 40 percent of total world land In the total land area of the world, 20 to 40 percent of the grasslands present, you have to dominate So if we look at the position, so normally grasslands are desert and forest There is a climatic conditions or biome between us You know desert conditions, the conditions are Less severe and it's a forest. They are less ideal conditions. We have grassland ecosystems So what are the climatic conditions? Yes, as we have just said that deserts will have less severe conditions Whereas the conditions of the forest will be a little more severe The meaning of severe is precipitation Precipitation means rainfall will come, there is more rainfall in the forest So the grasslands, they are having less rainfall as compared to the forest So if we talk about annual rainfall It ranges from 25 to the 100 centimeters annually If we look at the forest, we say from 75 to 150 centimeters annual rainfall Whereas compared to this, the grasslands 25 to 100 centimeters per year will be precipitation or annual rainfall Temperature conditions varies Meaning some grasslands are like that which are present in the cold climate Whereas some grasslands are like that which have moderate climatic conditions Temperature fluctuates from minus 20 to the 30 degree centigrade So minus 20 to the 30 degree centigrade Temperature conditions vary, soil conditions If we talk about grasslands, if the soil of grasslands is very good, then trees grow there Because ecological succession is the peak of the ecosystem In which trees grow The best or the climax is trees This means that the soil of grasslands does not have that much fertility It does not have that characteristic that big trees can grow there So normally the soil is porous The soil is porous The water holding capacity in it will work When the water holding capacity works, then the vegetation will also work there Only the upper layer of the grasslands, the thin layer of the upper layer That is holding the humus There is humus in it and the water holding capacity is present That is why the grasses grow there Their roots are not that deep So what do we do with the upper area? We use it So in the grassland ecosystem, if we expose the grassland ecosystem Ultimately the grassland ecosystem or the grassland biome It is converted into the deserts So if we look at the grassland ecosystems The grassland ecosystems have two types of grasslands The first one is actually the grasslands of North America North America's grasslands or some grasslands in Europe Where the temperature conditions are cold Meaning there are cool climatic conditions And they do not exist in any kind of tree So such grasslands of North America and Europe are called as the prairies Whereas in South America and Africa The grasslands are having some scattered trees They have some scattered trees And these grasslands are also called the swannas The swannas are sometimes called tropical swannas Tropical means that they are near to the tropics And there is a rainy season here Where the grasses bloom