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| Terms for subject Environment (5949 entries) |
| lurzoruan zeharreko arazketa | purification through the soil (The act or process in which a section of the ground is freed from pollution or any type of contamination, often through natural processes) | |
| lurzoruaren ahalmen | soil capability (The suitability of soils for various uses, e.g. sustained production of cultivated crops, pasture plants, etc., depending on depth, texture, kinds of minerals, salinity, kinds of salts, acidity, etc.) | |
| lurzoruaren analisi | soil analysis (The use of rapid chemical analyses to determine the fertility status of a soil. It is used to identify those nutrients or substances that are present in either insufficient or excessive quantities for optimum plant growth. Analyses are also used to monitor increases or decreases in soil fertility over time) | |
| lurzoruaren azala zigilatze | soil surface sealing (Any activity or process in which ground surface areas are packed or plugged to prevent percolation or the passage of fluids) | |
| lurzoruaren azidotze | soil acidification (A naturally occurring process in humid climates that has long been the subject of research, whose findings suggest acid precipitation effects. The generally accepted impact of soil acidification on the productivity of terrestrial plants is summarised as follows: as soil becomes more acidic the basic cations (Ca, Mg) on the soil exchange are replaced by hydrogen ions or solubilized metals. The basic cation, now in solution, can be leached through the soil. As time progresses the soil becomes less fertile and more acidic. Resultant decreases in soil pH cause reduced, less-active population of soil microorganisms, which in turn slow decomposition of plant residues and cycling of essential plant nutrients) | |
| lurzoruaren biologia | soil biology (The study of the living organisms, mainly microorganisms and microinvertebrates which live within the soil, and which are largely responsible for the decomposition processes vital to soil fertility) | |
| lurzoruaren deskontaminazio | soil decontamination (Technologies employed in the removal of PCBs, PAH, pesticides and, more generally, of organic compounds by physical, chemical or biological treatments) | |
| lurzoruaren eginkizun | soil function (The main soil function is participation in the material transformation and migrating processes occurring in the natural environment on which the functioning of ecosystems depends. The most active participants in the occurring processes are microorganisms and invertebrates, whose activity, different variety, complex structure, and abundance accurately reflect the soil type and its characteristics: so they are important indicators of ecological stability. The variety of soil organisms determine its self-regulatory and self-cleaning capacity) | |
| lurzoruaren egitura | soil structure (The combination or aggregation of primary soil particles into aggregates or clusters, which are separated from adjoining peds by surfaces of weakness. Soil structure is classified on the basis of size, shape, and distinctness into classes, types, and grades) | |
| lurzoruaren egoera | soil condition (Description of the character of the surface of the ground at the time of observation, especially in relation to the influence of rain and snow) | |
| lurzoruaren egonkortasun | soil stability (Soil stability depends on its shear strength, its compressibility and its tendency to absorb water. Stabilization methods include physical compaction and treatment with cement, lime, and bitumen) | |
| lurzoruaren egonkortze | soil stabilisation (Chemical or mechanical treatment designed to increase or maintain the stability of a soil mass or otherwise to improve its engineering properties, as by increasing its shear strength, reducing its compressibility, or decreasing its tendency to absorb water. Stabilization methods include physical compaction and treatment with cement, lime, and bitumen) | |
| lurzoruaren ehundura | soil texture (1. Refers to the relative proportions of the various size groups (sand, silt and clay) of the individual soil grains in a mass of soil. 2. Classification of soil by the proportion and graduations of the three size groups of soil grains, i.e., sand, silt and clay, present in the soil) | |
| lurzoruaren emankortasun | soil fertility (The status of a soil with respect to the amount and availability to plants of elements necessary for plant growth) | |
| lurzoruaren erabilera | soil use (Functional utilization of soil for agriculture, industry, or residential building purposes) | |
| lurzoruaren gazitasun | soil salinity (Measurement of the quantity of mineral salts found in a soil. Many semi-arid and arid areas are naturally salty. By definition they are areas of substantial water deficit where evapotranspiration exceeds precipitation. Thus, whereas in humid areas there is sufficient water to percolate through the soil and to leach soluble materials from the soil and the rocks into the rivers and hence into the sea, in deserts this is not the case. Salts therefore tend to accumulate) | |
| lurzoruaren gazitze | soil salination (The accumulation of soluble mineral salts near the surface of soil, usually caused by the capillary flow of water from saline ground water. Where the rate of surface evaporation is high, irrigation can exacerbate the problem by moistening the soil and causing water to be drawn from deeper levels as water evaporates from the surface. The evaporation of pure water leaves the salts behind, allowing them to accumulate, and they can reach concentrations that are toxic to plants, thus sterilizing the land) | |
| lurzoruaren higadura | soil erosion (Detachment and movement of topsoil or soil material from the upper part of the profile, by the action of wind or running water, especially as a result of changes brought about by human activity, such as unsuitable or mismanaged agriculture) | |
| lurzoruaren hobekuntza | soil improvement (Process of protecting the soil from excessive erosion and making soil more fertile and productive) | |
| lurzoruaren kalitate | soil quality (All current positive or negative properties with regard to soil utilization and soil functions) |