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Latest Environmental soil science Stories

Student Builds Human Colon Replica To Understand Impact Bacteria Has On Groundwater
2013-05-28 10:53:18

University of California - Riverside To better understand how bacteria impact the environment a former University of California, Riverside graduate student spent nearly a year building a system that replicates a human colon, septic tank and groundwater and "fed" the colon three times a day during weeklong experiments to simulate human eating. Ian Marcus, who recently earned his Ph.D. from the UC Riverside Bourns College of Engineering, said discussion of the research often left people a...

2013-04-26 23:00:48

Engineers at Draper Laboratory and MIT are working under contract with NASA to develop a statistical model that can identify areas where landslides are most likely to occur so that preparations can be made to better respond to a crisis. CAMBRIDGE, MA (PRWEB) April 26, 2013 Landslides, which can destroy entire communities and are on the rise due to climate change, are more often caused by rainfall accumulated over long periods than single storms. Engineers at Draper Laboratory and MIT are...


Latest Environmental soil science Reference Libraries

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...

Dryland Farming
2013-03-15 11:32:48

Dryland farming is farming without the aid of irrigation and only with the amount of rain fall given by Mother Nature. Dryland farming is typical in arid regions such as Southwestern United States, Mexico, the Middle East, and other regions that are known for growing grains. Dryland farming is practiced in all parts of Australia with the exception of the Northern Territory. Process Dryland farming involves the constant assessing of the amount of moisture present or lacking for any given...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.