richness of soil

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• richness — noun 1. the property of being extremely abundant (Freq. 3) the profusion of detail the idiomatic richness of English • Syn: ↑profusion, ↑profuseness, ↑cornucopia • Derivationally related forms: ↑ …   Useful english dictionary

• Soil seed bank — The soil seed bank is the collective name for the store of seeds, often dormant, which are stored within the soil of many terrestrial ecosystems. Background Soil seeds banks of particular taxa have been classified according to the longevity of… …   Wikipedia

• richness — rich ► ADJECTIVE 1) having a great deal of money or assets. 2) (of a country or region) having valuable natural resources or a successful economy. 3) of expensive materials or workmanship. 4) plentiful; abundant. 5) having or producing something… …   English terms dictionary

• Species richness — is the number of species in a given area. It is represented in equation form as S.Typically, species richness is used in conservation studies to determine the sensitivity of ecosystems and their resident species. The actual number of species… …   Wikipedia

• Mesotrophic soil — Mesotrophic soils are soils with a moderate inherent fertility. An indicator of soil fertility is its base status, which is expressed as a ratio relating the major nutrient cations (calcium, magnesium, potassium and sodium) found there to the… …   Wikipedia

• Breadbasket — The Breadbasket of a country is a region which, because of richness of soil or advantageous climate, produces an agricultural surplus which is often considered vital for the country as a whole. A similar term is the Granary of a given country. As …   Wikipedia

• Pecan Bayou — Pecan Bayou, one of the five major tributaries of the Colorado River of Texas, is aptly named, for it is a slow moving stream fed by over twenty creeks. Many area residents believe it is the westernmost bayou in the United States. Pecan Bayou has …   Wikipedia

• Organic farming and biodiversity — The effect of organic farming has been a subject of interest for researchers. Theory suggests that organic farming practices, which exclude the use of synthetic pesticides and fertilizers, would be beneficial for biodiversity, and this has proven …   Wikipedia

• Pedodiversity — can be generally defined as the variation of soil properties (usually characterised by soil classes) within an area. Pedodiversity studies were first started by analyzing soil series–area relationships (Beckett and Bie, 1978). According to Guo et …   Wikipedia

• Ecology — For other uses, see Ecology (disambiguation). Ecology …   Wikipedia

• Human impacts on the nitrogen cycle — Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation (Galloway 2003). As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over… …   Wikipedia