Soil
71Soil health — is an assessment of ability of a soil to meet its range of ecosystem functions as appropriate to its environment. Aspects of soil health The term soil health is used to assess the ability of a soil to: *Sustain plant and animal productivity and… …
72Soil ecology — is the study of the interactions among soil organisms, and between biotic and abiotic aspects of the soil environment. [Access Science: [http://www.accessscience.com/Encyclopedia/6/63/Est 631825 frameset.html?doi Soil Ecology] . Url last accessed …
73Soil resilience — refers to the ability of a soil to resist or recover their healthy state in response to destabilising influences this is a subset of a notion of environmental resilience . This overview provides a discussion of soil resilience in the context of… …
74Soil texture — is a soil property used to describe the relative proportion of different grain sizes of mineral particles in a soil. Particles are grouped according to their size into what are called soil separates. These separates are typically named clay, silt …
75Soil salinity — is the salt content in the soil. [ [http://europeandcis.undp.org/WaterWiki/index.php/Soil salinity from Soil salinity in WaterWiki, the on line Knowledge and Collaboration Tool of the Community of Practice (CoP) on Water and UNDP related… …
76Soil compaction — occurs when weight of livestock or heavy machinery compresses soil, causing it to lose pore space. Affected soils become less able to absorb rainfall, thus increasing runoff and erosion. Plants have difficulty in compacted soil because the… …
77Soil solarization — is an environmentally friendly method of using solar power for controlling disease agents in the soil by mulching the soil, usually with a transparent polyethylene cover.It may also describe methods of decontaminating soil using sunlight or solar …
78Soil acidification — is the buildup of hydrogen cations, also called protons, in the soil. This happens when a proton donor is added to the soil. The donor can be an acid, such as nitric acid and sulfuric acid (these acids are common components of acid rain). It can… …
79Soil physics — is the study of soil physical properties and processes. It is applied to management and prediction under natural and managed ecosystems. Soil physics deals with the dynamics of physical soil components and their phases as solids, liquids, and… …
80Soil cement — is a construction material , a mix of pulverized natural soil with small amount of portland cement and water, usually processed in a tumble, compacted to high density. Hard, semi rigid durable material is formed by hydration of the cement… …
