Desertification and Aeolian Sediment Transport in India.
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Transcript of Desertification and Aeolian Sediment Transport in India.
Climates of India
-Area of Rajasthan is predominantly desert or an arid climate.
-Climate is heavily influenced by monsoon season.
-32% of land facing threat of desertification
The Source
● Half world’s population dependent● Historical land and border disputes● Dynamic and evolving systems
o Hydrologically and o Politically
● Seasonal fluctuations and vulnerabilities
Complexities of Sediment Load
● Limited Knowledge● Climatic evolution● Anthropogenic effects ● Intrabasin and regional
variability● Source/sink dynamics
Gangetic river system2,390tons/km2 annually
Tropical river system216tons/km2 annually
Sediment delivery influenced primarily by climatic conditions
Sediment delivery influenced by climate and anthropogenic factors
Subsidence from oil extraction
Decreasing sediment loads
Decreasing deltaic aggradation
Rising sea level