http://biology.about.com/od/ecology/ss/nutrient-cycle.htm

http://participatoryscience.org/curriculum-activity/introduction-nitrogen-cycle

http://thecarboncycledio.weebly.com/the-carbon-cycle-steps.html

http://www.sciencelearn.org.nz/Contexts/Soil-Farming-and-Science/Science-Ideas-and-Concepts/The-phosphorus-cycle

http://www.epa.gov/acidrain/effects/

http://www.newworldencyclopedia.org/entry/Biogeochemical_cycle

http://www.informaecon.com/sacd.asp

http://www.kew.org/science-conservation/plants-fungi/acacia-mangium-brown-salwood

http://news.mongabay.com/2010/0923-rspo_smart_palm_oil.html#sthash.WQwMHaky.dpbs

Muhumuza, M. (2010). Biogeochemical cycles. Retrieved from http://www.eoearth.org/view/article/150616/

The Economics of Climate Change in Southeast Asia: A Regional Review. (2009). Retrieved from http://www.climatefinance-developmenteffectiveness.org/documents/ADB_economics-climate-change-se-asia.pdf

 

Case Study 1: Inagaki, M., & Ishizuka, S. (2011). Ecological Impact on Nitrogen and Phosphorus Cycling of a Widespread Fast-growing Leguminous Tropical Forest Plantation Tree Species, Acacia mangium. Diversity. Retrieved from www.mdpi.com/journal/diversity

Case Study 2: Carbon storage and release in Indonesian peatlands since the last deglaciation. (2014).Quaternary Science Reviews, 97, 1-32.