نتایج جستجو برای: soil movement
تعداد نتایج: 335165 فیلتر نتایج به سال:
The principle There is no single definition for ‘organic’ farming as the term applies to a movement rather than to a single policy. However, a general feeling for what is 'organic' and what is not can be obtained from the aims of the most prominent associations or organisations within the organic movement. Within the UK, these include the Soil Association. The Soil Association exists "to resear...
Movement of poliovirus I (Chat) through nonsterile core samples of a sandy forest soil was monitored, using several regimens of loading with either dechlorinated final effluent from an operating activated sludge treatment plant or distilled water. Stimulated cycles of rainfall and effluent applications, resulting in ionic gradients, were shown to affect virus movement. Such studies indicate tha...
Ecosystem engineers affect other species by changing physical environments. Such changes may influence movement of organisms, particularly belowground where soil permeability can restrict dispersal. We investigated whether earthworms, iconic ecosystem engineers, influence microarthropod movement. Our experiment tested whether movement is affected by tunnels (i.e., burrows), earthworm excreta (m...
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