IBDP Geography Section B Chapter 3 Notes

managing coastal margins


These notes have specially been curated by expert teachers to simplify and enlighten concepts given in IB Geography. The notes are comprehensive in nature and are sufficient to study the chapter in depth, One need not look for other resources beyond the notes provided on our website which can be accessed for free. The notes for Geography IBDP are available on our official website and can be downloaded for free. You are one click away from obtaining all that you need to score well in IB Geography. The material made available on Tychr’s website is available for all IBDP subjects and is specially curated after an extensive amount of effort to ensure that the notes are in consonance with the IB curriculum and are an amalgamation from various textbooks prescribed by the IBO.

Students often face a challenge understanding concepts, especially concepts that are new and These IB Geography Notes will help the student cover the chapter of Drainage Basin Hydrology and Geomorphology entirely while explaining each and every concept in a detailed and easy way.

This chapter delves into the management of coastal margins. Coastal erosion is the process by which local sea level rise, strong wave action, and coastal flooding wear down or carry away rocks, soil, sands along the coast. The chapter begins by introducing the concept of coastal erosion and flooding management strategies. It also helps understand the cost-benefit analysis of coastal defense as the costs include cost of building, maintenance, employment of manpower and other related costs. The chapter uses the case study of Palisadoes Spit to understand the problem and the solution the Government of Jamaica has decided to implement.

A second case study of the Thames Barrier is also an additional resource that will help gain more clarity on the topic in discussion. The SMMA is an example of how a fragile coastal environment can be managed. Coral reefs are often described as the “rainforests of the sea” and hold immense environmental and economic value. They provide a variety of advantages that include coastal protection, food resources, economic importance, tourism wealth and a medical future. The chapter ends with a discussion on the concept of mangrove swamps, the pressures on mangroves and the ways to manage mangrove forests.