soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… … Universalium
Characterisation of pore space in soil — Soil is essential to most animals on the earth. It is a relatively thin crust where an even smaller portion contains much of the biological activity. Soil consists of three different phases. A solid phase (≈ 20%) that contains mainly minerals of… … Wikipedia
Soil food web — The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Introduction Food webs describe the… … Wikipedia
Gley soil — in soil science is a type of hydric soil which exhibits a greenish blue grey soil color due to wetland conditions. On exposure to the air, gley colors are transformed to a mottled pattern of reddish, yellow or orange patches. During gley soil… … Wikipedia
Gas diffusion in soil — The air space in soil contains oxygen to provide for respiration of plant roots and soil organisms. This air space could also contain carbon dioxide as a product of respiration of plant roots and soil organisms.Composition of air in soil and… … Wikipedia
Substrat-induzierte Respiration — Die substrat induzierte Respiration (SIR, englisch: substrat induced respiration) ist eine indirekte Methode zur Bestimmung der mikrobiellen Biomasse in Böden. Sie wurde 1978 von J. P. E. Anderson und K. H. Domsch (Institut für Bodenbiologie der… … Deutsch Wikipedia
Oxygen sensor — Contents 1 Automotive applications 1.1 Function of a lambda probe 1.2 The probe … Wikipedia
Carbon cycle — The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.The cycle is usually thought of as four major reservoirs of carbon interconnected by… … Wikipedia
atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… … Universalium
Sol (pédologie) — Pour les articles homonymes, voir Sol. Le sol représente la couche superficielle, meuble, de la croûte terrestre, résultant de la transformation de la roche mère, enrichie par des apports organiques. Il est à la fois le support et le produit du… … Wikipédia en Français
