types of soil texture

1. SUBJECT: Plant Ecology-I
Semester: VI, BS Botany
Teacher Name: Dr. Khalid Rasheed Khan
Department of Botany
Government College Mansehra

2. Lecture No.01
SOIL TEXTUE

4. Soil Texture
• Texture indicates the relative content of particles of various sizes, such as
sand, silt and clay in the soil.
• In general, the size of soil particles and their spacing determine how much
water can flow through the soil.
• The larger the spacing, or pore size, the greater the infiltration rate. Thus,
sandy soils will have high infiltration rates because pore sizes are large and
there are no finer materials to block the pores.

5. • Sand defined as mineral soil particles that have diameters ranging from 2 to
0.02 mm.
• Silt can be defined as the mineral soil particles that range in diameter from
0.02 to 0.002 mm.
• Clay is the soil texture component with soil particles that have diameters
less than 0.002 mm

6. Loam: sand silt and clay particles are present in equal proportion
Sandy loam: Loam soil in which the sand particle predominates
Clay Loam: Loam Soil in which the clay particle predominates
Silty loam: Loam Soil in which the silt particle predominates
;

8. Thank you