How can ecosystems be used and managed sustainably?
Why ecosystems matter (goods and services) and why they are under threat; and how local and global strategies, including protected areas, international agreements and balancing development with conservation, can manage biomes sustainably.
A focused answer to OCR GCSE Geography B (J384) Sustaining Ecosystems on managing ecosystems sustainably, covering why ecosystems matter, the threats they face, and local and global strategies including protected areas and international agreements.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
This is OCR GCSE Geography B (J384) Component 1, Our Natural World, the final enquiry of Sustaining Ecosystems: "How can ecosystems be used and managed sustainably?" OCR expects you to explain why ecosystems matter (the goods and services they provide) and why they are under threat, and to explain and evaluate local and global strategies for managing biomes sustainably, including protected areas, international agreements, and balancing development with conservation. This pulls together the rainforest and polar studies into a general argument about sustainability.
Why ecosystems matter
OCR wants you to be able to justify why we should protect ecosystems, in terms of goods and services.
Why ecosystems are under threat
The major threats cut across all biomes:
- Deforestation and land-use change for farming, logging, mining and settlement.
- Climate change, which shifts conditions faster than species can adapt (hitting fragile polar ecosystems hardest).
- Pollution of air, water and soil.
- Over-exploitation, such as overfishing and overhunting.
These threats are driven by population growth and rising consumption, so managing ecosystems means managing human demand as well as protecting the environment.
Local and global strategies
Sustainable management operates at two scales, and OCR rewards using both.
- Local strategies. Community conservation (giving local people a stake), ecotourism (income that depends on protecting the environment), selective logging and agro-forestry (using the resource without destroying it), and education. These give people a direct reason to conserve and are often well enforced on the ground, but are small in scale.
- Global strategies. International agreements such as the Antarctic Treaty (banning mining in Antarctica) and CITES (controlling trade in endangered species), debt-for-nature swaps, protected areas and national parks, and global emissions targets. These can protect whole biomes and tackle shared problems, but are hard to agree and enforce and depend on national cooperation and funding.
Try this
Q1. Describe two services that ecosystems provide for people. [2 marks]
- Cue. Storing carbon to slow climate change, and regulating the water cycle (also soil protection and biodiversity).
Q2. Suggest why a global agreement is needed to protect a polar environment. [4 marks]
- Cue. Polar environments cross national boundaries and face shared threats (climate change, resource pressure), so only international cooperation can manage them effectively, as the Antarctic Treaty does.
Exam-style practice questions
Practice questions written in the style of OCR exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
OCR 20194 marksExplain why it is important to protect natural ecosystems. (Component 1)Show worked answer →
A 4-mark "Explain" question assessing AO1 and AO2. Markers reward developed reasons, not a list.
Award credit for: ecosystems provide goods such as food, timber, medicines and fuel that people depend on; they provide services such as storing carbon (slowing climate change), regulating the water cycle, protecting soils and supporting biodiversity; and they have cultural and tourism value. Losing them would remove these benefits, worsen climate change and cause species extinction. Top answers develop a reason into why its loss would matter, rather than just listing benefits.
OCR 20226 marksAssess whether local or global strategies are more effective at managing ecosystems sustainably. (Component 1)Show worked answer →
A 6-mark "Assess" question marked by levels of response, assessing AO1, AO2 and AO3, with a judgement.
Strong answers explain local strategies (community conservation, ecotourism, selective use, agro-forestry) and global strategies (international agreements such as the Antarctic Treaty and CITES, debt-for-nature swaps, protected areas, global emissions targets). They argue that local strategies give people a direct stake and tend to be better enforced on the ground, but are small in scale; global strategies can protect whole biomes and tackle shared problems such as climate change, but are hard to agree and enforce, and depend on national cooperation and funding. A good judgement concludes that the two work best together, with global frameworks setting the rules and local action delivering them, and that the best balance depends on the threat. Markers reward named strategies and a clear judgement.
Related dot points
- The structure of ecosystems (producers, consumers, decomposers, food chains and webs, nutrient cycling); and the global distribution of the major biomes, including tropical rainforest and polar, and the climatic conditions that create them.
A focused answer to OCR GCSE Geography B (J384) Sustaining Ecosystems on the structure of ecosystems, food chains, webs and nutrient cycling, and the global distribution of biomes such as tropical rainforest and polar.
- The climate, soils, structure, biodiversity and nutrient cycling of the tropical rainforest; plant and animal adaptations; the causes and impacts of deforestation; and sustainable management at different scales.
A focused answer to OCR GCSE Geography B (J384) Sustaining Ecosystems on tropical rainforests, covering their climate, structure, adaptations and nutrient cycle, the causes and impacts of deforestation, and sustainable management.
- The climate, soils and ecosystem of polar and tundra environments; plant and animal adaptations; the opportunities and challenges for human activity; and the threats, including climate change, and sustainable management.
A focused answer to OCR GCSE Geography B (J384) Sustaining Ecosystems on polar and tundra environments, covering their climate, adaptations, the opportunities and challenges for people, and the threats from climate change.
- The evidence for climate change in the Quaternary period; the natural causes (orbital cycles, sunspots, volcanic activity) and the human enhanced greenhouse effect; the impacts of climate change; and how it can be managed through mitigation and adaptation.
A focused answer to OCR GCSE Geography B (J384) Changing Climate, covering evidence from the Quaternary, natural causes such as orbital cycles and volcanic activity, the human enhanced greenhouse effect, impacts, and mitigation and adaptation.
- The global distribution of food, water and energy and the concept of resource security and insecurity; the ecological footprint as a measure of demand; and how rising population and economic development increase resource consumption.
A focused answer to OCR GCSE Geography B (J384) Resource Reliance on resource security, covering the global distribution of food, water and energy, resource security and insecurity, the ecological footprint, and rising demand.
Sources & how we know this
- OCR GCSE (9-1) Geography B (J384) specification — OCR (2016)