जलवायु एवं कृषि-जलवायु क्षेत्र – Rajasthan GK

The Arid Western Plain Zone (IA) is the largest agro-climatic zone of Rajasthan in terms of area.

Most of the rainfall in Rajasthan occurs due to the Bay of Bengal Monsoon, which enters eastern Rajasthan.

The rainfall occurring in winter due to Western Disturbances is called 'Mawat', which is beneficial for Rabi crops.

The Irrigated North-Western Plain Zone (IB), which includes Ganganagar and Hanumangarh, is known for Rabi crops like wheat, barley, and mustard due to canal irrigation.

Jhalawar district records the highest average annual rainfall in Rajasthan.

In the Arid Western Plain Zone (IA), due to low rainfall and sandy soil, drought-resistant crops like Bajra and Guar are prominent.

The highest difference between day and night temperatures is found in the summer season, especially in the western desert regions.

The Aravalli mountain range is situated parallel to the South-Western monsoon winds, allowing these winds to pass without obstruction, resulting in low rainfall in Western Rajasthan.

Loo are extremely hot and dry winds that blow during the summer season, predominantly in Western Rajasthan.

Mawat is rainfall that occurs in winter due to Western Disturbances originating from the Mediterranean Sea.

The Semi-Arid Eastern Plain Zone (IIIA) includes districts like Jaipur, Ajmer, Dausa, and Tonk, where the climate is semi-arid.

Jhalawar is the district in Rajasthan that receives the highest rainfall and falls under the extremely humid climatic zone.

The Wagad region (Dungarpur-Banswara) receives good rainfall, hence its climate falls under the extremely humid category.

In Thornthwaite's classification, 'CA'w' represents a sub-humid climate, which includes districts of Southern Rajasthan like Udaipur, Dungarpur, Banswara.

The average annual rainfall in Rajasthan is approximately 57.5 cm, which is significantly lower than the national average.

The Chambal river, due to its deep erosion, forms 'Badlands' (Beehad) or ravines, which are found in Kota, Sawai Madhopur, and Dholpur districts.

Species like Babul and Khejri are part of desert vegetation, found in arid and semi-arid regions.

The western part of Rajasthan has an arid climate and the central part has a semi-arid climate, covering most of the state.

Rajasthan is divided into 10 major agro-climatic zones from an agricultural perspective.

In Koppen's classification, 'BShw' represents a semi-arid steppe climate, which includes the western parts of Aravalli (e.g., Nagaur, Sikar, Jhunjhunu).