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Latest Soil Stories

Dying Trees Set Stage For Erosion And Water Loss
2012-06-28 04:01:37

New research concludes that a one-two punch of drought and mountain pine beetle attacks are the primary forces that have killed more than 2.5 million acres of pinyon pine and juniper trees in the American Southwest during the past 15 years, setting the stage for further ecological disruption. The widespread dieback of these tree species is a special concern, scientists say, because they are some of the last trees that can hold together a fragile ecosystem, nourish other plant and animal...

Deepwater Horizon Spill Exacerbated Existing Problems In Louisiana Marshes
2012-06-26 04:10:50

The BP Deepwater Horizon oil spill temporarily worsened existing manmade problems in Louisiana's salt marshes such as erosion, but there may be cause for optimism, according to a new study. A study appearing online Monday in the Proceedings of the National Academy of Sciences found the 2010 spill killed off salt marsh plants 15 to 30 feet from the shoreline and this plant die off resulted in a more-than-doubled rate of erosion along the marsh edge and subsequent permanent marsh habitat...

Over 30 Years Of Global Soil Moisture Observations For Climate Applications
2012-06-20 04:14:52

[ Watch the Video ] Water held in soil plays an important role in the climate system. The dataset released by ESA is the first remote-sensing soil moisture data record spanning the period 1978 to 2010 — a predecessor of the data now being provided by ESA´s SMOS mission. The datasets are now available to the science community for feedback analyses and climate model validation. The amount of water held in global soils makes up only about 0.001% of the total water found on...

2012-06-17 23:02:48

Recent flooding in the Panhandle of Florida caught many coastal residents off guard. Disaster Relief Supply in Destin, Florida recommends preparing for the next flood with alternative methods of water barriers to protect property. Destin, FL (PRWEB) June 16, 2012 The unprecedented amount of rainfall recently received in Pensacola and Escambia County Florida was a wakeup call for protection of property located in flood prone areas. Many homeowners experienced losses due to the lack of any...

It's All About The Dirt
2012-06-17 03:00:40

[ Watch the Video ] A new study by researchers at BYU, Duke and the USDA finds that soil plays an important role in controlling the planet´s atmospheric future. The researchers set out to find how intact ecosystems are responding to increased levels of carbon dioxide in the atmosphere. The earth´s current atmospheric carbon dioxide is 390 parts per million, up from 260 parts per million at the start of the industrial revolution, and will likely rise to more than 500 parts per...

Predator-Created Domino Effect Leads To Ecosystem Changes
2012-06-17 05:42:51

Creatures that are feeling the pressure from the presence of predators are known to alter their diets, thus having a noteworthy impact on their habitats, claims new research published in the journal Science. According to the National Science Foundation (NSF), researchers from Yale University and the Hebrew University of Jerusalem teamed up to study changes in the types of plant life consumed by grasshoppers under different circumstances. Ordinarily, grasshoppers eat nitrogen-rich grass,...

2012-06-16 01:03:07

Tiny microbes are at the heart of a novel agricultural technique to manage harmful greenhouse gas emissions. Scientists have discovered how microbes can be used to turn carbon dioxide emissions into soil-enriching limestone, with the help of a type of tree that thrives in tropical areas, such as West Africa. Researchers have found that when the Iroko tree is grown in dry, acidic soil and treated with a combination of natural fungus and bacteria, not only does the tree flourish, it also...

The Productivity Of Our Soil Affected From Grasshoppers 'Stressed' By Spiders
2012-06-14 15:58:15

How do grasshoppers who are being frightened by spiders affect our ecosystem? In no small measure, say researchers at the Hebrew University of Jerusalem and at Yale University in the US. A grasshopper that is in fear of an attacker, such as a spider, will enter a situation of stress and will consume a greater quantity of carbohydrate-rich plants — similar to humans under stress who might eat more sweets. This type of reaction will, in turn, cause chemical changes in the...


Latest Soil Reference Libraries

Sheet Mulching
2013-08-05 12:36:35

Sheet mulching, or lasagna gardening, is the process of turning barren ground into a more nourishing garden without digging. It is a layered system that can be used for a yard garden or a topical box garden. Starting at the bottom is a weed proof barrier, like newspaper or cardboard. On top of that is a twelve-inch layer of compost or mulch material such as old clothes, yard clippings, and manure, which provides for nutrient rich soil. Weed-free soil is added prior to planting the desired...

Desertification
2013-04-02 09:46:56

Desertification is a form of land degradation in which a comparatively dry land area becomes more and more arid, normally losing its bodies of water along with its wildlife and vegetation. This is a result of a variety of factors, such as climate change and human activities. Desertification is an important global, ecological, and environmental issue. There is substantial controversy over the proper definition of the term “desertification”. The most broadly accepted of these is that of...

Land Degradation
2013-04-02 09:20:15

Land degradation is a process in which the value of the biophysical environment is affected by one or more combination of human-induced processes acting on the land. It is also the gradual destruction or reduction of the quality and quantity of human activities, animal activities or natural means. It is viewed as any change or disturbance to the land perceived to be deleterious or unwanted. Natural hazards are not included in the causes; however, human activities can indirectly affect...

Erosion
2013-04-01 12:48:39

Erosion is the process by which rock and soil are taken from the surface of the Earth by exogenetic processes like wind or the flow of water, and then transported and deposited in another location. While erosion is a natural process, human activities have increased by 10 to 40 times the rate at which erosion is happening globally. Excessive erosion results in problems such as desertification, decreases in agricultural productivity because of land degradation, sedimentation of waterways,...

Soil Salinity
2013-04-01 11:15:13

Soil salinity is the salt content within the soil; the process of increasing the content of salt is known as salination. Salt is a natural element of water and soils. Salination can be a result of natural processes such as the gradual withdrawal of an ocean or mineral weathering. It can be caused by artificial processes such as irrigation as well. Soils that are affected by salt are a result of excess accumulation of salts, normally most obvious at the surface of the soil. Salts can be...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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