- 行业: Biology
- Number of terms: 15386
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Terrapsychology is a word coined by Craig Chalquist to describe deep, systematic, trans-empirical approaches to encountering the presence, soul, or "voice" of places and things: what the ancients knew as their resident genius loci or indwelling spirit. This perspective emerged from sustained ...
The largest ecological regions distinguishable by characteristic plants and animals. There are six: tundra, conifer, deciduous forest, grassland, tropical, and desert. Biomes are subdivided into associations made up of societies.
Industry:Biology
The tilt of the Earth's axis (23. 5° at present). The tilt makes seasons possible because at any given position in the Earth's orbit around the Sun, half of the planet will lean toward the sun as the other half leans away from it.
Industry:Biology
A crop grown to protect the soil from erosion and nearby food crops from weeds. Can be dug under to put nutrients back into the ground. Common cover crops include buckwheat, hairy vetch, Austrian winter pea, and various clovers.
Industry:Biology
One that arrives when the moon is in its first or last quarter. Because the sun and moon stand at right angles to each other, their tidal pulls partially nullify each other, resulting in a lesser tide. Contrast with Spring Tide.
Industry:Biology
When slowed decomposition in a waterlogged environment allows layers of vegetation to accumulate. Peat is a frequent result. In Russia gleization has been used to grow an organic "liner" to hold water in leaky ponds and dugouts.
Industry:Biology
Sedimentary rock composed of calcium carbonate (calcium carbonate) formed by deposits of seashells and marine animal skeletons. Limestone is often added to cement and other construction materials, including blocks and facings.
Industry:Biology
The rotation of legume and grain crops, developed as an alternative to crop-fallow practices in Australia. In addition to improved soils and reduced erosion, wheat yields increased 48% and showed a higher protein concentration.
Industry:Biology
Soil rich in calcium carbonate (calcite) deposited by weathering of calcareous rocks and shells. Chalk, limestone, marl, magnesium, and phosphates are often found in it, making it fertile, if dry or thin. Often seen in deserts.
Industry:Biology
The culminating stage of plant succession in a given ecosystem. Climax communities tend toward maturity because of having attained harmony with their surroundings through years of experimentation and adaptation. See Succession.
Industry:Biology
The conveyance of oxygen to cells and tissues as carbon dioxide and water are given off. In cells, the conversion of food (e.g., glucose) into energy. In most organisms, respiration releases the energy that drives metabolism.
Industry:Biology
