Landscapes –Geomorphic features • Geomorphology is the branch of geology concerned with the structure, origin and development of the topographical features of the Earth's surface. • (Geocaching website - http://www.geocaching.com/geocache/GC4EJ4K_pillar-of-the-desert) Geomorphic • Pertaining to the form of the earth, or of its surface features. • Refers to the “Abiotic” or “non-living” environment • The physical template on which all living things and processes interact and modify to change the surface of the Earth. 4 key elements of landscape/landform • Relief – shape and height of landforms • Abiotic – soil and rock formation and type • Bio-systems (Biomes) – plants and animals • Climate – normal annual weather conditions, intensity and angle of sunlight Abiotic • Abiotic, as in inorganic, which is an non-living physical and chemical attribute of a system within an environment, for example: - light, temperature, wind patterns, rocks, soil, pH, pressure, etc. • The landforms that develop upon a particular kind of bedrock are related to its structural features such as bedding planes, joints, folds and faults, and to its mineralogical composition. Rock structure determines both major landforms and details of the landscape. (Online Dictionary) http://www.env.gov.bc.ca/soils/landscape/1.3geology.html Relief • The relief is the result of the internal forces of the Earth (Earthquakes, tectonic plate movement, volcanoes etc) and external agents (wind, rain, temperature, rivers, groundwater, ice, humans etc). • The internal forces are responsible for the origin and elevation of topography and the external agents cause the erosion and the modeling of the Earth’s relief. Biomes • A major ecological community of organisms (plant and animal) adapted to a particular climatic or environmental condition on a large geographic area in which they occur. • Biomes are dependent on a number of factors in order to survive – most importantly – climate, elevation, abiotic conditions (soil type) etc (biology Online) Climate • Climate is the average weather in a place over many years. While the weather can change in just a few hours, climate takes hundreds, thousands, even millions of years to change. • The climatic elements of temperature, precipitation, and wind are not the only elements of climate, but they are the most significant elements used to express the climate of a region. The relief influences the climate – e.g. mountains influence rainfall Relief Biomes Biomes influence the relief – e.g. the roots of plants can crack rocks Direct influence Indirect influence In response the climate influence the relief – e.g. rainfall erodes rock and soil Climate Soils Biomes Influence climate – e.g. trees release water vapour into the atmosphere aiding in the creation of clouds resulting in rain i.e. rainforests Task. • Complete the landscape elements relational diagram by researching how each element “directly” or “indirectly” influence the other.