List of evidences for increase of sand in Rajasthan arid zone. (i) Wind direction: The direction of wind is mainly from south-west and north-east. The spread of sand dunes also follow the same direction e.g. ushkar, Budha Pushkar. (ii) Advancement of sand movement: Accumulation of Aeolian sands on le western and eastern flanks of Aravalli hill near Shapura-Ajitgarh area. The [...]
After reading this article you will learn about:- 1. Concept of Sand Dunes 2. Processes for Transportation of Sand Dunes 3. Extent 4. Types 5. Morphology 6. Sand Dunes System 7. Vegetation 8. Origin 9. Management 10. Utilization. Contents: Concept of Sand Dunes Processes for Transportation of Sand Dunes Extent of Sand Dunes Types of Sand Dunes Morphology of Sand [...]
After reading this article you will learn about:- 1. Meaning of Seed Dormancy 2. Ecological Significance of Seed Dormancy 3. Types 4. Causes 5. Effects. Meaning of Seed Dormancy: Dormancy is a delaying mechanism which prevents germination under conditions which might prove to be unsuitable for establishment. As long as the seed remains viable the possibility exists that it may [...]