Ecosystem

ThesisStatement:desert as an ecosystem supports both biotic and abiotic organisms.

Anecosystem refers to community comprising of living and non-livingorganisms. It includes plants, microbes, and animals. The organismsexist in an environment as their communication systems. The organismis in two forms, abiotic and biotic components (Molles &amp Cahill,2008). The two components link together through energy flows andnutrient cycles. These networks of interaction among organisms tendto define an ecosystem. Scientist tends to refer an ecosystem to bethe whole planet.

Theabiotic components in an ecosystem consist of water, energy, soil,minerals, and nitrogen. The sun provides the energy flow in thesystem. The energy enters the system by photosynthesis. The process,usually, captures atmospheric carbon. The cycles then continue untilit reaches the animals when they feed on plants. s are undercontrol of the internal and external factors. External factorsinclude of climate, soil, and topography. The internal factorscomprise of decomposition, shading, and root competition. Examples ofecosystems include rainforest, desert coral reefs.

Desert

is into two types. They include the aquatic ecosystem it consists ofmarine ecosystems and freshwater ecosystem. Terrestrial ecosystemincludes forest, greater yellow ecosystem, and desert. Desert is anecosystem that has characteristics of barren land with littleprecipitation (Kroening, 2001). Animals and plants living in thedesert have hostile living conditions. The surface of the earth isunprotected since it lacks vegetation. Deserts occur in areas thatreceive minimal rainfall of between 250 to 500mm. An example of adesert includes the Gobi desert in Asia and Great Victoria Desert inAustralia. Structure of this ecosystem has various features. There isthe presence of large sheets of land and dunes. The sand entailedcoarse silt, very fine grain sand and separated in layers. The openground exposes the surface to wind erosion. Due to wind erosion, vaststones accumulate together and cover large areas. Most of the desertsare flat land hence make the area prone to floods. The waves comefrom raining in the neighboring ecosystems (Kroening, 2001).

Thereare xerophytes, which are plants that have adapted to survive in theecosystem. They include cacti, small shrubs, and grasses. Theecosystem also consists of Xeroxes. They are animals that haveadapted to the severe environment. They include the Courser, camel,addax antelopes and Oryx.

Desertsfacilitate propagation of various activities. They include provisionof fertile grounds for irrigation farming. Similarly, it enablescapturing of solar energy due to its low amount of the cloud cover.In addition, the ecosystem acts as a home for the biotic and abiotic(Molles et al., 2008).

Biogeochemicalcycle

Theterm refers to any natural circulation of pathways of essentialelements of living matter. The flow cycles from abiotic to bioticcomponent of the biosphere then to the non- living again (Molles etal., 2008). In order for all components of the ecosystem to survivethere must be continuous recycling of chemical elements. The cycleconsists of the gaseous cycle and sedimentary cycle. The gaseouscycle includes those of oxygen, carbon, nitrogen, and water. Thesedimentary cycle consists of calcium, phosphorous, iron and otherelements (Kroening, 2001).

Acarbon cycle is an example of a biogeochemical cycle. Carbon is aform of ubiquitous element. It exists in large pools in livingorganisms, soils, fuels, atmosphere, and ocean (Cain, Damman, &ampLue, 2006). Animals take part in the carbon cycle when they breathecarbon dioxide into the air. Plants remove the carbon dioxide fromthe atmosphere through photosynthesis. Oceans also participate in thecycle by releasing and absorbing carbon dioxide. Carbon in the carboncycle also changes by burning of carbon elements such as fossilfuels. When the carbon dioxide tends to accumulates in theatmosphere, it traps heat (Cain et al., 2006). The heat results towhat is called as the greenhouse warming. It is condition wherebyearth becomes warmer. Desert has various natural resources such asseasonal rivers and touristic sites like sand dunes. To conserve theecosystem people should be responsible. Measures and initiatives forland reclamation should be implemented.

Conclusion

Desertis a useful ecosystem that consists of cycles such as biogeochemical.The conservation of ecosystem should be there since it inhabits vastorganisms.

References

Cain,M.L., Damman, H., Lue, R. A. (2006). Discover Biology: The CarbonCycle. Retrieved from:http://nortonbooks.com/college/biology/animations/ch38a03.htm. Accessed on 4/10/2014.

Kroening,H. (2001). Analyzingan .Retrieved fromhttp://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/.swf.Accessed on 4/10/2014.

Molles,M.C. and Cahill, J.F. (2008) Ecology:Concepts and Applications. Retrieved from:http://highered.mcgraw-hill.com/sites/007096341x/student_view0/chapter18/.Accessed on 4/10/2014.