Grasslands are areas where grasses predominate. They are an intermediate stage in ecological succession that encompasses a portion of the land at all altitudes and latitudes when climatic and soil conditions prevent tree growth. Grasslands are generally open and somewhat flat, and they may be found on every continent except Antarctica, making them vulnerable to human pressure. Grasslands are of two major types namely: Tropical Grasslands and Temperate Grasslands. This article will explain to you about Types of Grasslands that will be helpful in preparing the Environment syllabus for the UPSC Civil service exam.

What exactly are Grasslands?

• A grassland ecosystem is one in which grasses and other herbaceous (non-woody) plants dominate the vegetation.
• Grasslands can be found in both tropical and temperate climates if rainfall is insufficient to support tree development.
• They occupy roughly 20% of the land on the planet's surface.
• The temperature and soil conditions considerably influence the types of plants that flourish here.
• Grasslands are found in places with minimal rainfall and/or poor soil depth and quality.
• Low rainfall hinders the growth of many trees and plants, but it is enough to support grass growth during the monsoon.

Types of Grasslands

• Tropic and temperate grasslands are the two main types of grasslands.
• Eurasian steppes, North American prairies, and Argentine pampas are examples of temperate grasslands.
• The hot savannas of Sub-Saharan Africa and northern Australia are examples of tropical grasslands.

Types of Grasslands

Tropical Grasslands

• Tropical Grasslands are located between Tropical Rain Forests and Tropical Deserts in the interior of the continents.
• These areas are hot all year, with dry and wet seasons in between.
• Savannahs are another name for tropical grasslands.
• Tropical Grasslands receive 50 to 130 cm of rain annually.
• In addition, the tropical grasslands have short plants, making them a good hunting area.
• Savannah, Campos, and Llanos are examples of tropical grasslands.
• Elephants, giraffes, lions, cheetahs, zebras, and other species occupy tropical grassland.

Temperate Grasslands

• These can be found in the middle latitudes and in the interiors of continents.
• Except for the climatic circumstances, these grasslands are comparable to tropical grasslands.
• They have cold winters and hot summers, with annual rainfall ranging between 25 and 75 cm.
• Pampas, Prairie, Veld, Steppe, and Down are examples of temperate grasslands.
• Furthermore, these grasslands are subjected to harsh weather.
• In the winter, the temperature can drop to 0 degrees Fahrenheit in the Flooded Grasslands.
• In the summer, temperatures can approach 90 degrees in some locations.
• Dew and snow are the most common forms of precipitation in these grasslands.
• In the temperate zone, buffaloes, bison, and antelopes are common.

Types of Grasslands In India

Semi-arid Zone

• Open, interconnecting grasslands bordered by groves of trees and shrubs make up semi-arid grassland communities.
• Perennial natural grasses are the most common species.
• The topography spans the northern portions of Gujarat, Rajasthan (excluding the Aravallis), western Uttar Pradesh, Delhi, and Punjab.

Dry Sub Humid Zone

• The biodiversity of dry sub-humid regions is well adapted to the difficult conditions characterized by unpredictable rainfall patterns that result in droughts and floods, as well as high temperatures in many cases.
• Many of the world's crops, such as wheat, barley, and olives, are grown in dry and sub-humid environments.
• In India, this zone encompasses all of peninsular India (except Nilgiri).

Moist Sub Humid Zone

• The moist sub-humid zone describes areas where the climate is intermediate between semi-arid and humid, and the precipitation supports dense development of tall or short grasses but not forests.
• It includes the Ganga alluvial plain in Northern India, and the landscape is flat, low-lying, and poorly drained.

Humid Montane Regions

• Humid montane grasslands are grasslands and shrublands found at high elevations around the world.
• The term "montane" in the biome's name denotes "high altitude".
• The savanna is derived from humid forests due to shifting cultivation and sheep grazing in Assam, Manipur, West Bengal, Uttar Pradesh, Punjab, Himachal Pradesh, and Jammu & Kashmir's humid montane regions and moist sub-humid zones.

Types of Grasslands In India

Economic Importance of Grasslands

• Wheat, corn, and rice are the three main plants that are grown on grasslands all over the world.
• Grasslands also provide a significant food source for cows and sheep.
• Water from semi-natural grasslands is currently in short supply.
• Locally, however, stakeholders, including regional specialists and local farmers, recognize their importance.
• These natural grasslands create an efficient system for water absorption, high infiltration, and reduced erosion.
• Grassland/pasture can sustain plants that honey bees have a long relationship with (clovers and other non-native weeds).
• Grasslands, both natural and semi-natural, play a significant role in the cultural landscape.
• Some grasslands are designated as nature reserves or national parks, and they are frequently promoted as tourist destinations both locally and nationally.

Conclusion

The grasslands are one of the most important landforms. They assist agriculture by providing essential ecosystem services such as water and climate regulation, as well as biogeochemical cycling, carbon storage, cultural, and recreational benefits. They are also the major reservoirs of agricultural gene pools, and many of the crops that enable human life, such as wheat, corn, rice, and millets, originated in grasslands. Grasslands are also important habitats for a variety of flora and animals.