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| Terms for subject Environment (5878 entries) |
| soil decontamination (Technologies employed in the removal of PCBs, PAH, pesticides and, more generally, of organic compounds by physical, chemical or biological treatments) | إزالة تلوث التربة | |
| soil degradation (Soil may deteriorate either by physical movement of soil particles from a given site or by depletion of the water-soluble elements in the soil which contribute to the nourishment of crop, plants, grasses, trees, and other economically usable vegetation. The physical movement generally is referred to as erosion. Wind, water, glacial ice, animals and tools in use may be agents of erosion) | تدهور التربة | |
| 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) | تآكل التربة | |
| soil erosion by wind | إنجراف ريحي | |
| soil erosion by wind | تعرية ريحية | |
| soil erosion by wind | تعرية التربة بسبب الرياح | |
| soil fertilisation (The application of any organic or inorganic material of natural or synthetic origins to a soil to supply one or more elements essential to the growth of plants) | تخصيب التربة | |
| soil fertility (The status of a soil with respect to the amount and availability to plants of elements necessary for plant growth) | خصوبة التربة | |
| soil formation (The combination of natural processes by which soils are formed. It is also known as pedogenesis. The most important soil-forming factors are parent material, terrain, climate, aspect, vegetation cover, microorganisms in the soil and the age of the land surface. Some pedologists would add to this list the influence of human activities. All the factors exhibit varying degrees of interrelationship and some are more important than others, with climate often being singled out as the most important) | تكوين التربة | |
| 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) | وظيفة التربة | |
| soil improvement (Process of protecting the soil from excessive erosion and making soil more fertile and productive) | تحسين التربة | |
| soil layer (Distinctive successive layers of soil produced by internal redistribution processes. Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and/or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron/aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil) | طبقات التربة | |
| soil leaching (The removal of water or any soluble constituents from the soil. Leaching often occurs with soil constituents such as nitrate fertilizers with the result that nitrates end up in potable waters) | غسل التربة | |
| soil loading (In soil mechanics and civil engineering the term is used to denote the increased weight brought to bear on the ground surface) | حِمل التربة | |
| soil map (A two-dimensional representation that shows the areal extent or the distribution of soils in relation to other features of the land surface) | خريطة التربة | |
| soil mechanics (The study of the physical properties of soil, especially those properties that affect its ability to bear weight such as water content, density, strength, etc.) | ميكانيكا التربة | |
| soil mineralogy (Study of the formation, occurrence, properties, composition, and classification of the minerals present in the soil) | تعدين التربة | |
| soil moisture (1. Water stored in soils. 2. One of the most important elements involved in pedological processes and plant growth. There are three basic forms: 1. water adhering in thin films by molecular attraction to the surface of soil particles and not available for plants is termed hygroscopic water. 2. Water forming thicker films and occupying the smaller pore spaces is termed capillary water. Since it is held against the force of gravity it is permanently available for plant growth and it is this type of soil water which contains plant nutrients in solution. 3. Water in excess of hygroscopic and capillary water is termed gravitational water, which is of a transitory nature because it flows away under the influence of gravity. When the excess has drained away the amount of water retained in the soil is termed its field capacity, when some of its pore spaces are still free of water) | رطوبة التربة | |
| soil moisture regime (The water regime of the soil is determined by the physical properties and arrangement of the soil particles. The pores in a soil determine its water-retention characteristics. When all the pores are full of water, the soil is said to be saturated) | نظام رطوبة التربة | |
| soil organism (Organisms which live in the soil) | كائن عضوي يعيش في التربة |