Making the transition to the third era of natural resources managementby Nathan L. This is an ideal paper for probing the psychological anguish that accompanies the pragmatic shift in conservation paradigms forced by rapid climate change.
Salinity Concentration of dissolved salts found in a sample of water. Measured as the total amount of dissolved salts in parts per thousand. Seawater has an average salinity of about 34 parts per thousand.
Salinization Pedogenic process that concentrates salts at or near the soil surface because evapotranspiration greatly exceeds water inputs from precipitation.
Salt 1 The mineral sodium chloride. Saltation Transport of sediment initiated by moving air or water where particles move from a resting surface to the transport medium in quick continuous repeated cycles. Salt Marsh Coastal wetland ecosystem that is inundated for some period of time by seawater.
Plants that exist in this community have special adaptation to survive in the presence of high salinities in their immediate environment. Saltwater Intrusion The invasion of saltwater into freshwater aquifers in coastal and inland areas. This condition can be cause when groundwaterwhich charges the aquifer, is withdrawn faster than it is recharged by precipitation.
Sample A sample is a subset group of data selected from a larger population group. Most samples are drawn at random to guaranty equal representation in the data. Sand Mineral particle with a size between 0. Also see clay and silt.
Sand Dune A hill or ridge of aeolian sand deposits with a minimum height of less than one meter and a maximum height of about 50 meters. Found in hot deserts and along sandy coastlines.
A large region of sand and sand dunes in a desert. Common to erg deserts. Sand Sheet Deposit of sometimes stratified less well sorted sand that almost resemble dunes.
Common in northern Europe. Believed to form when windblown materials settle on areas of patchy snow. A type of sedimentary rock that contains a large quantity of weathered quartz grains.
Another term used for wind ripples. Sand Wedge A form of ice wedge that contains accumulations of wind blown sand in long vertical layers. A form of periglacial ground ice.
Santa Ana Wind A warm, dry chinook like wind that occurs in southern California. Originates from the east off an elevated desert plateau. This rate is less than the dry adiabatic lapse rate 9. Saturation Atmospheric condition where water is changing its phase to liquid or solid.
Generally, this process is caused by the cooling of the atmosphere. Saturation Mixing Ratio Mass of water vapor that a kilogram of dry air can hold at saturation. Savanna A tropical or sub-tropical plant community characterized by trees and shrubs scattered among a cover of grasses, herbs and forbs.
The climate of a savanna is tropical with a dry season occurring in the low Sun period of the year. Extensive movements of soilsedimentand rock material caused by humans.The biome with considerable organic material in the soil, annual precipitation of inches, and periodic wildfires to maintain the dominant vegetation is the: a) temperate deciduous forest.
This lesson will explore the unique characteristics of the temperate deciduous forest biome. The lesson will also discuss animals and plants that can be found in this biome and the adaptations. Deterimination of pH of substrate. The pH of solution containing 5% of sample substrates in 50 ml of distilled water was determined using Jenway portable automatic temperature compensation digital pH meter, calibrated with buffer and Clear cutting of forests is also a threat to this biome.
Trees are cut for timber and land cleared for agriculture. Another problem associated with deciduous forests is the introduction of non-native plant and animal species because it upsets the balance of the forest ecosystem.
Grasslands are characterized as lands dominated by grasses rather than large shrubs or trees. There are two main divisions of grasslands: tropical grasslands, called savannas, and temperate grasslands.
lausannecongress2018.comand biomes are large, rolling terrains of grasses, flowers and herbs. This study compiles and summarizes the existing knowledge about observed and projected impacts of climate change on forests in Europe. Forests will have to adapt not only to changes in mean climate variables but also to increased variability with greater risk of extreme weather events, such as prolonged drought, storms and floods.