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"The tropical rainforest is the most complex ecosystem on Earth, yet human use of this precious resource does not reflect its ecological importance and immense biodiversity." Discuss.

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Introduction

Lee Ka Ying Janice GEOG 1016 Nature Conservation for Sustainable Societies 3rd Written Exercise: Essay Question Attempted: 4 "The tropical rainforest is the most complex ecosystem on Earth, yet human use of this precious resource does not reflect its ecological importance and immense biodiversity." Discuss. Tropical rainforest is a valuable natural resource with the most complex ecosystem on the Earth. Its importance to the global ecosystem and humanis extremely paramount. They are located in low-latitudes areas near the Equator, between the Tropic of Cancer (23.5ºN) and the Tropic of Capricorn (23.5ºS). The majority is lying between 10ºN to 10ºS, commonly found in Brazil, Democratic Republic of Congo and South-east Asia(Figure 1). For the sake of its environmental opportunities available, human carry out large-scale deforestation by cutting and burning the forests to open up more land for development. This threatens the ecology and biodiversity drastically. Figure 1. Distribution of Tropical Rainforest (Source: www.mongabay.com) 1. Ecosystem of Tropical Rainforests Ecosystem refers to the interaction and inter-connection of energy and matter between biotic components (living organisms) and abiotic components (non-living organisms) (Loreau, M.,Naeem, S. andInchausti, P. 2002). A change in one component will lead to a series of chain effects on the other. Tropical rainforest is the most complex ecosystem in terms of the number of biotic components and their structure, as well as the complexities of the interactions between components. 1.1 Abiotic components Abiotic components include non-living elements, such as solar energy, air, soil, water and nutrients. ...read more.

Middle

Due to high level of urbanization, the world population and the living standard is both rising. Thus, the demand for tropical cash crops is increasing. This causes a rise in their prices and provides incentives for setting up more plantations. With the support of local government, huge tracts of tropical rainforest are being cut to make ways for plantations. This greatly accelerates the rate of deforestation. Figure 5 describes the palm oil production in Indonesia and Malaysia from 1964 to 2006. Both show a significant growth and this illustrates the rising importance of plantation to the countries' economies. But at the same time a greater destruction to the environment. Figure 5. Annual palm oil production by Malaysia and Indonesia from 1964-2006 (Source: mongabay.com) 3.2.3 Cattle Ranching A large area of rainforest is cut down to provide pastureland for cattle ranching. It can be regarded as the main source of soil deterioration (Sluyter 1996). Without vegetation cover, the pasture is not protected from heavy rain. Overgrazing occurs when excessive number of livestock is reared. This accelerates soil erosion and soil quality deteriorates. Cattle ranchers move to a new site and this causes a huge destruction to rainforest. 3.2.3.1 Reasons for rapid cattle ranching The demand for beef is extremely high nowadays due to an improving world's living standard. This applies especially for Brazilian beef which are cheaper and safer (not infected by livestock diseases) in international markets. Besides, local government often supports this activity. The environmental awareness in these countries is usually very low and they pay little attention on rainforest conservation. ...read more.

Conclusion

(2,132 words) ________________ Reference List: Ablett, E., 2006. Process of nutrient cycling http://onlinegeography.wikispaces.com/LW+-+What+is+an+ecosystem. accessed on 18 November 2012 Ahmad, K.A, 2008. Can Malaysia support ecotourism? ? An Analysis of ecotourism's status in Malaysia, KhairunNajiah Ahmad.Master thesis, University of Portsmouth. Asner, G., 2006. Condition and fate of logged forests in the Brazilian Amazon. Proceedings of the National Academy of Sciences, 103 (34), 12947-12950. Butler, R.A., 2005. Annual palm oil production by Malaysia and Indonesia from 1964-2006.mongabay.com. accessed on 18 November 2012 Butler, R.A., 2005. Tropical Rainforests of the World.mongabay.com. accessed on 17 November 2012 Butler,R.A.,2012.Environmental impact of Mining in the Rainforest.http://rainforests.mongabay.com/0808.htm. accessed on 19 November 2012 Ganesh , K., 2005. Energy Flow in Ecosystem http://www.tutorvista.com/content/biology/biology-iv/ecosystem/energy-flow.php#. accessed on 18 November 2012 Heinrichs, S., 1996. Flying Fox Conservation Fund. http://www.flyingfoxconservationfund.com/. accessed on 19 November 2012 Highest average annual deforestation of primary forests in 2000-2005.United Nations Food and Agriculture Organization Global Forest Resources Assessment 2005. UNFAO Kirkland, E., 2010Beautiful Mountain. Greenpeace Press, USA Loreau, M.,Naeem, S.,Inchausti, P., 2002.Biodiversity and ecosystem functioning: synthesis and perspectives. OxfordUniversityPress, USA Monthly average of rainfall/temp in rainforest area of Manaus, Brazil. http://www.bbc.co.uk/schools/gcsebitesize/geography/ecosystems/tropical_rainforests_rev1.shtml. accessed on 17 November 2012 Parks, P.J., 2007. Natural resource use conflict: gold mining intropical rainforest in Ghana. Department of Agricultural, Food and Resource Economics, Cook College,Rutgers University, New Brunswick, NJ. Process of Leaching. http://www.sln.org.uk/geography/schools/blythebridge/gcseecosystemtropicalrf.htm. accessed on 19 November 2012 Sani,S., 2008. The encyclopedia of Malaysia: Volume 1:The environment. Archipelago Press, Singapore Sluyter, A., 1996.The Ecological Origins and Consequences of Cattle Ranching in Sixteenth-Century New Spain.American Geographical Society. USA Varone, L., 2006. Carbon sequestration and their contribution to decreasing airtemperature in Rome,Springer Science and Business MediaInc ...read more.

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