Geo-spatial Database and Metadata
... additional water from seepage and/or nearly continuous rainfall. Water is removed from the soil somewhat slowly. Soil is wet for only a short time within the rooting zone during the growing season , but long enough that most mesophytic crops are affected . These soils commonly have a slowly pervious ...
... additional water from seepage and/or nearly continuous rainfall. Water is removed from the soil somewhat slowly. Soil is wet for only a short time within the rooting zone during the growing season , but long enough that most mesophytic crops are affected . These soils commonly have a slowly pervious ...
Sahelian Africa
... In Niger in West Africa desertification has led to increased food shortages in an area where food is already scarce. One of the projects combating desertification encourages farmers to plant edible, drought-resistant perennial species that do not need watering or fertilisers. The continued presence ...
... In Niger in West Africa desertification has led to increased food shortages in an area where food is already scarce. One of the projects combating desertification encourages farmers to plant edible, drought-resistant perennial species that do not need watering or fertilisers. The continued presence ...
WHAT IS SOIL? - Duplin County Schools
... The concepts covered in this PowerPoint, as well as related activities and materials, are appropriate for upper elementary and middle school science classrooms. Concepts are differentiated by a colored shape code: Slides with a green circle deal with basic key ideas and understandings meant for uppe ...
... The concepts covered in this PowerPoint, as well as related activities and materials, are appropriate for upper elementary and middle school science classrooms. Concepts are differentiated by a colored shape code: Slides with a green circle deal with basic key ideas and understandings meant for uppe ...
Degradation pattern of illicit drugs in soil
... clandestine laboratories were detected across Australia (ACC, “Illicit Drug Data Report, 2006-2007” 2008). Illicit drugs are manufactured through variety of synthetic routes employing different illicit precursors most commonly in small clandestine labs and also in industrialized mega and super labor ...
... clandestine laboratories were detected across Australia (ACC, “Illicit Drug Data Report, 2006-2007” 2008). Illicit drugs are manufactured through variety of synthetic routes employing different illicit precursors most commonly in small clandestine labs and also in industrialized mega and super labor ...
Human Health, the Nutritional Quality of Harvested Food and
... has declined. The net result is that the food we consume has lost the nutrients we need for good health values in food over the past several decades. Most vegetables and fruits have lost substantial vitamin and mineral content during the last forty years. Our food system is rapidly losing its abilit ...
... has declined. The net result is that the food we consume has lost the nutrients we need for good health values in food over the past several decades. Most vegetables and fruits have lost substantial vitamin and mineral content during the last forty years. Our food system is rapidly losing its abilit ...
Methods Based on Statistical Analysis to Improve Water Retention in
... population. Every drop of water conserved makes a difference. This work shows that subsurface irrigation efficiency can be further improved by using thicker and fine grain size top soil bed. This approach can result in water savings and reduced water pumping/production costs. ...
... population. Every drop of water conserved makes a difference. This work shows that subsurface irrigation efficiency can be further improved by using thicker and fine grain size top soil bed. This approach can result in water savings and reduced water pumping/production costs. ...
Soil Erosion
... There are four basic causes of erosion—wind, water, glaciers, and land slippage. Wind erosion is the loss of soil due to the movement of wind over the land. Wind moves soil by suspension, saltation, and surface creep. Water erosion is the loss of soil due to water movement. Three types of water eros ...
... There are four basic causes of erosion—wind, water, glaciers, and land slippage. Wind erosion is the loss of soil due to the movement of wind over the land. Wind moves soil by suspension, saltation, and surface creep. Water erosion is the loss of soil due to water movement. Three types of water eros ...
Biological soil crust and vascular ... sand savanna of northwestern Ohio1
... Heights, Ohio 44118). Biological soil crust and plant communities in a sand savanna of northwestern Ohio. J. Torrey Bot. Soc. 130:244-252. 2003.-A survey of biological crust components (bryophytes, lichens, chlorophyta, bacteria), soil fauna (nematodes, collembolans, mites) and vascular plants was c ...
... Heights, Ohio 44118). Biological soil crust and plant communities in a sand savanna of northwestern Ohio. J. Torrey Bot. Soc. 130:244-252. 2003.-A survey of biological crust components (bryophytes, lichens, chlorophyta, bacteria), soil fauna (nematodes, collembolans, mites) and vascular plants was c ...
changes in the content of organic carbon and available forms of
... Depending on a tested plant, bentonite either had no effect on the content of phosphorus (WYSZKOWSKI, ZIÓ£KOWSKA 2009c) or caused an increase in the content of this element in soil (WYSZKOWSKI, ZIÓ£KOWSKA 2008). Soil liming improves soil porosity, stability and other physicochemical properties; it a ...
... Depending on a tested plant, bentonite either had no effect on the content of phosphorus (WYSZKOWSKI, ZIÓ£KOWSKA 2009c) or caused an increase in the content of this element in soil (WYSZKOWSKI, ZIÓ£KOWSKA 2008). Soil liming improves soil porosity, stability and other physicochemical properties; it a ...
Decomposer animals and bioremediation of soils
... have been developed to determine bio-availability and biological eects of harmful chemicals and contaminated soils. Together with chemical analyses, soil animal studies will help in ®nding out the linkage between actual contamination levels and adverse eects on biota. Being important and large soi ...
... have been developed to determine bio-availability and biological eects of harmful chemicals and contaminated soils. Together with chemical analyses, soil animal studies will help in ®nding out the linkage between actual contamination levels and adverse eects on biota. Being important and large soi ...
Ecological Succession
... organic material • The soil layer thickens, and grasses, wildflowers, and other plants begin to take over • More shade ...
... organic material • The soil layer thickens, and grasses, wildflowers, and other plants begin to take over • More shade ...
Fire-Induced Water-Repellent Soil Layers in Non
... gradient (hydrophilic). Soils were classified a number two if a water drop took more than ten seconds but less than one minute to absorb (hydrophobic). A number three was assigned to sites that took over one minute for the water to absorb (strongly hydrophobic). Mode analysis was used to characteriz ...
... gradient (hydrophilic). Soils were classified a number two if a water drop took more than ten seconds but less than one minute to absorb (hydrophobic). A number three was assigned to sites that took over one minute for the water to absorb (strongly hydrophobic). Mode analysis was used to characteriz ...
Soil - compaction, colour - Development of e
... iii. Soil structure: Platy structure contains more water than granular structure. iv. Organic matter: The presence of organic matter helps to increase the capillary capacity of a soil. Organic matter itself has a great capillary capacity. Undecomposed organic matter is generally porous having a larg ...
... iii. Soil structure: Platy structure contains more water than granular structure. iv. Organic matter: The presence of organic matter helps to increase the capillary capacity of a soil. Organic matter itself has a great capillary capacity. Undecomposed organic matter is generally porous having a larg ...
Integrated Plant Nutrient Management for Sandy Soil Using
... Besides there is hardly any soil structure to make holding of water and nutrients possible in the potential root zone, an essential requirement for sustained vegetation development. These factors are thus responsible for the failure to introduce and sustain vegetation, whether natural or domesticate ...
... Besides there is hardly any soil structure to make holding of water and nutrients possible in the potential root zone, an essential requirement for sustained vegetation development. These factors are thus responsible for the failure to introduce and sustain vegetation, whether natural or domesticate ...
File - Boreal Agrominerals
... Common mafic minerals contain a great amount of reduced metals and when exposed to the oxygen bearing atmosphere generally will result in oxidation. Sedimentary rocks and soils have undergone at least one sedimentary cycle, resulting in most of the iron and transition metals occurring in a higher ox ...
... Common mafic minerals contain a great amount of reduced metals and when exposed to the oxygen bearing atmosphere generally will result in oxidation. Sedimentary rocks and soils have undergone at least one sedimentary cycle, resulting in most of the iron and transition metals occurring in a higher ox ...
1. Succession Flipbook
... by which an ecosystem changes over time and results in the formation of a stable community. There are two types of ecological succession, primary and secondary. Primary succession: This process begins when succession is started by the formation of totally new land. New land may occur naturally or be ...
... by which an ecosystem changes over time and results in the formation of a stable community. There are two types of ecological succession, primary and secondary. Primary succession: This process begins when succession is started by the formation of totally new land. New land may occur naturally or be ...
Oklahoma Soils - Oklahoma State University
... 4. Students will select one or more of the Dominant Oklahoma Soil Orders and work in groups to build models of them, make posters, produce multimedia presentations or other means to provide information about them to the class. 5. Students will use online or library resources to find information ab ...
... 4. Students will select one or more of the Dominant Oklahoma Soil Orders and work in groups to build models of them, make posters, produce multimedia presentations or other means to provide information about them to the class. 5. Students will use online or library resources to find information ab ...
Effect of Potssium Fertilizer on Sugar Production
... matter. Evaluations were also made of the role of potassium fertility in reducing sugarbeet root rot diseases, stand establishment, reduced growth resulting from sand syndrome effect, and overall plant vigor, sugar quality and production, in the Red River Valley of the North. Materials and Methods A ...
... matter. Evaluations were also made of the role of potassium fertility in reducing sugarbeet root rot diseases, stand establishment, reduced growth resulting from sand syndrome effect, and overall plant vigor, sugar quality and production, in the Red River Valley of the North. Materials and Methods A ...
MS Weathering and Formation of Soil Worksheets
... rock particles. This exposes new surfaces to weathering, although it also removes nutrients from soil. Temperature is an important factor in soil formation because the rate of chemical weathering increases with higher temperatures. The rate of chemical reactions doubles for every 10 °C increase in t ...
... rock particles. This exposes new surfaces to weathering, although it also removes nutrients from soil. Temperature is an important factor in soil formation because the rate of chemical weathering increases with higher temperatures. The rate of chemical reactions doubles for every 10 °C increase in t ...
CircUse News 7 | 2013
... highly visible and exponated brownfield site in the Brzeziny district of the city of Piekary. One of the activities of the CircUse project is the realization of an investment at this area former used by heavy industries. The pilot project in Piekary Śląskie is closely connected with the implementati ...
... highly visible and exponated brownfield site in the Brzeziny district of the city of Piekary. One of the activities of the CircUse project is the realization of an investment at this area former used by heavy industries. The pilot project in Piekary Śląskie is closely connected with the implementati ...
section 329300 - trees, shrubs, and ground covers
... southern orientation, place same as grown in nursery. Placement must meet approval of the Port prior to backfilling. The Port may request rotation of trees or shrubs to give a better appearance with respect to adjacent plants and structures. ...
... southern orientation, place same as grown in nursery. Placement must meet approval of the Port prior to backfilling. The Port may request rotation of trees or shrubs to give a better appearance with respect to adjacent plants and structures. ...
Silvicultural Systems for Mixedwood Management
... aspen regeneration; little aspen regeneration observed when basal area above 15 m2/ha in healthy stands Good aspen regeneration has been reported in openings 40 m diameter in 30 m tall stands (Kabzems 2001). Openings less than 0.5 tree height in diameter may be a problem. Poor aspen regeneration obs ...
... aspen regeneration; little aspen regeneration observed when basal area above 15 m2/ha in healthy stands Good aspen regeneration has been reported in openings 40 m diameter in 30 m tall stands (Kabzems 2001). Openings less than 0.5 tree height in diameter may be a problem. Poor aspen regeneration obs ...
Tillage
Tillage is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning. Examples of human-powered tilling methods using hand tools include shovelling, picking, mattock work, hoeing, and raking. Examples of draft-animal-powered or mechanized work include ploughing (overturning with moldboards or chiseling with chisel shanks), rototilling, rolling with cultipackers or other rollers, harrowing, and cultivating with cultivator shanks (teeth). Small-scale gardening and farming, for household food production or small business production, tends to use the smaller-scale methods above, whereas medium- to large-scale farming tends to use the larger-scale methods. There is a fluid continuum, however. Any type of gardening or farming, but especially larger-scale commercial types, may also use low-till or no-till methods as well.Tillage is often classified into two types, primary and secondary. There is no strict boundary between them so much as a loose distinction between tillage that is deeper and more thorough (primary) and tillage that is shallower and sometimes more selective of location (secondary). Primary tillage such as ploughing tends to produce a rough surface finish, whereas secondary tillage tends to produce a smoother surface finish, such as that required to make a good seedbed for many crops. Harrowing and rototilling often combine primary and secondary tillage into one operation.""Tillage"" can also mean the land that is tilled. The word ""cultivation"" has several senses that overlap substantially with those of ""tillage"". In a general context, both can refer to agriculture. Within agriculture, both can refer to any of the kinds of soil agitation described above. Additionally, ""cultivation"" or ""cultivating"" may refer to an even narrower sense of shallow, selective secondary tillage of row crop fields that kills weeds while sparing the crop plants.