soil present in india

14
BY PODAR INTERNATIONAL SCHOOL JALGAON * Types Of Soil Present In India

Upload: sameer-shindadkar

Post on 12-Apr-2017

312 views

Category:

Science


0 download

TRANSCRIPT

Page 1: Soil present in india

BY PODAR INTERNATIONAL SCHOOL JALGAON

*Types Of Soil Present In India

Page 2: Soil present in india

*Group Members

*Sameer Shindadkar*Kartik Pawar*Adnan Shaikh*Mayor Sonar*Harsh Shah

Page 3: Soil present in india

*Types Of Soil Present In India

*Black Soil *Red Soil*Laterite Soil*Desert Soil*Alluvial Soil

Page 4: Soil present in india

*Black Soil

Page 5: Soil present in india

BLACK SOIL Also known as Regur or Black Cotton soil. Dark grey to Black in color. High clay content. Highly moist retentive. Develops cracks in summer. Covers 5.4 lakh sq. km. Highly suitable for cotton. Rich in iron, lime, calcium,Magnesium,carbonates, and alumina.

Page 6: Soil present in india

Red soil

Page 7: Soil present in india

RED SOIL Formed due to weathering of old crystalline rocks. More sandy and less clayey. Rich in iron, small amount of Humus. Poor in phosphorus, nitrogen and lime. Slightly acidic and do not retain moisture. 3.5 lakhs sq.km area. Porous and Friable.

Page 8: Soil present in india

Laterite soil

Page 9: Soil present in india

LATERITE SOIL Latin word meaning brick. Formed under high temperature and rainfall with wet and dry spell. Silica is leached due to high rainfall. Remnants of iron and aluminum oxides left

behind is know as Laterite. Brown to Yellowish color. Becomes hard when exposed to atmosphere. Used as building material.

Page 10: Soil present in india

Desert soil

Page 11: Soil present in india

DESERT SOIL Contains soluble salts. Originated by Mechanical disintegration & wind deposit. Porous and coarse. 90% sand & 5% clay. Rich in Nitrates & Phosphates. Poor in Nitrogen & Humus. Friable, sandy & low moist content. 1.4 Lakh sqkm.

Page 12: Soil present in india

Alluvial soil

Page 13: Soil present in india

ALLUVIAL  soil  is  formed  when  a  soil-carrying  stream  gradually  loses  its  carrying capacity   with   decreasing   velocity.   In   slowing down,  a  river  does  not  have  sufficient  power  to keep the large particles of soil suspended; these particles settle to the riverbed. Further decrease in velocity causes smaller particles to settle. These particles are deposited, finally, at the mouth of the river, where they form DELTAS of fine-grained soil.

Page 14: Soil present in india