Sentences with phrase «wind and water erosion»

Wind and water erosion take a toll.
Soil management to increase soil carbon sequestration may also reduce the amount of wind and water erosion due to an increase in surface cover.
The reason was that wind and water erosion degraded the soil on the conventional farm while the soil on the organic farms steadily improved in organic matter, moisture, microbial activity and other soil quality indicators.
With the episodic cycles of droughts, overgrazing and soil - stripping this island has experienced, along with wind and water erosion, the island's vegetation has been severely affected in the past.
After breakfast, we travel to Bryce Canyon National Park, where the haunting rock formations known as Hoodoos have been shaped by wind and water erosion over the eons.
Sometimes called hoodoos, the red - orange sandstone rocks have been sculpted over the past million years by wind and water erosion into spires, towers and pedestals.
Balancing boulders on Earth are either deposited by glaciers or carved by wind and water erosion — none of which exist on a comet.
A well - developed biological crust is nearly immune to wind and water erosion.

Not exact matches

If a person were on a remote island and found the words «John 1800» engraved on a boulder, would these words have arisen by accident, perhaps by wind or water erosion?
The introduction of trees to form agroforestry systems provided sources of firewood, timber, fruits and shade, but also helped in erosion control, protecting water courses through the stabilization of the soil and as wind breaks, regulating the velocity of the winds.
This erosion experiment from Inspiration Laboratories looks at different types of erosion: wind, water, and glacial.
Unlike natural bridges on Earth, which form largely by erosion from wind and water, these lunar bridges probably formed as a result of an impact in the last billion years, says Mark Robinson, a planetary geologist at Arizona State University in Tempe and principal investigator for LRO's camera.
They protect the soil from wind and from water runoff, helping to control erosion.
Erosion by water and wind can wear down land and create landforms like valleys and canyons.
Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
Causes of erosion include wind, water (including rainfall and floods), the scouring action of glaciers, and the repeated cycles of freezing and thawing that often occur in some areas of the world.
Pasture - based cattle operations also decrease soil erosion and improve soil fertility and water quality by maintaining grasslands which protect soils from water and wind erosion.
Picture fifth graders gathered around a table where teachers are modeling the effects of sand erosion by wind and water.
Physical and chemical weathering in hot arid environments, and erosion, transportation and deposition by wind and water
Working on the same sheet, another student answered that erosion is «the movement by wind, running water, glaciers, gravity and waves.»
An hour later, we make our last stop for seeing the stunning «Castillos de Callalli», which is a sort of castle - shaped rocky formation made by water and wind erosion.
Princen has also been known to reference scientific measuring systems, mapping, and amateur anthropology in his work, and his artistic practice has involved plotting ecological changes — water currents, wind patterns, and soil erosion, as well as the impacts of urban developments on the Dutch landscape.
The paintings were not literal renderings of the mountainous and rugged terrain, but instead captured the spartan forms and sculpted surfaces like those shaped by centuries of erosion and movement of wind and water as well as upheavals from tectonic shifts deep within the earth.
Each artist will address the theme utilizing locally available natural materials (salt, wood, dirt, plant - life, etc.) or natural elements and processes (wind, fire, water, decay, evaporation, erosion, etc.) in a temporary installation.
Global change, we were taught, occurred slowly and by commonplace mechanisms: sediment carried by water, deposited a grain at a time: erosion effected by water and wind, the hardest rocks slowly ground down crystal by crystal.
Erosion - The process of removal and transport of soil and rock by weathering, mass wasting, and the action of streams, glaciers, waves, winds and underground water.
Erosion is caused by the movement of water, which can be caused by wind or the rise and fall of tides.
Further, the United Nations Convention to Combat Desertification (UNCCD) defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest and woodlands resulting from land uses or from a process or combination of processes, including those arising from human activities and habitation patterns, such as: (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.
The United Nations Convention to Combat Desertification defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas, of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest, and woodlands resulting from land uses or from a process or combination of processes, including processes arising from human activities and habitation patterns, such as (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.
The former is conducive to agriculture, the latter to erosion — both by water during the hurricane and wind in the dry periods when there is no precipitation.
I can only list a few regular «goings on'that I KNOW affect sea level; I'm certain that there are others: Change in overall temperature of the oceans (a few millidegrees / mm), plate tectonics, slit from rivers, erosion of seashores, extraction of ground water which ultimately returns to the oceans, marine life and its products building up the ocean floors, melting land ice, undersea discharges of a variety of «stuff» from literally hundreds of thousands of sources, often at temperatures in the 1 - 2 thousand degree range, which we are only now beginning to notice, wind carrying dust from the land and dropping it on the ocean.
a b c d e f g h i j k l m n o p q r s t u v w x y z