the soil

Mere som dette

Ecotourism

af Areana Cantillo

caracteristicas de un boseto o bosquejo

af Magaly Samara Vergara G

DATABASE

af ANDRES VERGARA

Organizational Structure

af Darwin Alvarez

THE SOIL

AIR

WATER

MINERAL SUBSTANCES

STRUCTURE

LOAM / SILT

SAND

CLAY

ORGANIC MATTER

Organic matter: substance composed of animal and vegetable material.

HUMUS

Well decomposed organic matter in the soil

microorganisms

Keelback slug, Myriapod, Bacteria, Beetle, Lice(Louse), Mite, Lizard, Shrew, Larvae, Mole, Protozoa, Earth Worm, Nematode, Fungi, Ant.