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Soil sealing or soil surface sealing is the loss of soil resources due to the covering of land for housing, roads or other construction work. [1] Covering or replacing the topsoil with impervious materials like asphalt and cement as a result of urban development and infrastructure construction paired with compaction of the underlying soil layers results in the mostly irreversible loss of ...
Purdue Improved Crop Storage (PICS) bags (formerly known as Purdue Improved Cow-pea Storage bags) [1] are bags developed by scientists at Purdue University [2] to store grain and seeds. They use hermetic storage technology to reduce loss of post-harvest cowpea ( Vigna unguiculata ) due to bruchid infestations in West and Central Africa .
Planting is undertaken by first laying the bag flat on the floor or bench of the growing area, then cutting access holes in the uppermost surface, into which the plants are inserted. Growbags were first produced in the 1970s for home use, but their use has since spread into market gardening and farming .
A healthy topsoil layer is a very rich microbiome that hosts a wide array of species. [2] Organic matter provides nutrition for living organisms and varies in quantity between different soils with the strength of the soil structure decreasing when more is present. It condenses and settles over time in different ways depending upon conditions ...
Soil regeneration, as a particular form of ecological regeneration within the field of restoration ecology, is creating new soil and rejuvenating soil health by: minimizing the loss of topsoil, retaining more carbon than is depleted, boosting biodiversity, and maintaining proper water and nutrient cycling. [1]
In much of the northern US, soil formation commenced either shortly after glacial retreat at the end of the last Ice Age or even more recently. Elsewhere in the US, one may find some older land surfaces where soil formation has occurred over a much longer period, in addition to some young soils. [2] [3] There are 12 soils in the U.S.