IB ESS HL3.2 Human Impact on BiodiversityHL only~11 min read
Indigenous Land Management
Indigenous Australians used controlled burning to prevent catastrophic wildfires long before fire ecology existed as a discipline. These are not folk customs that happen to work — they are land management systems refined over generations, and they are now under pressure from both outside and within.
📘 What you need to know
Traditional Indigenous land management means the methods Indigenous communities use to care for and sustain the natural environment over generations.
These focus on long-term sustainability, keeping land productive and healthy for future generations.
Practices include rotational farming, controlled burning, and sustainable fishing and hunting.
They are based on a deep connection to the land and a holistic understanding of ecosystems.
External threats: population growth and economic development, climate change, government policies and lack of support.
Internal threats: aspiration for economic development, and erosion of traditional knowledge.
What these methods are
Traditional Indigenous land management refers to the methods used by Indigenous communities to care for and sustain the natural environment over generations. They focus on long-term sustainability, ensuring the land remains productive and healthy for future generations, and they maintain balance in the ecosystems where they occur.
Controlled burning is the clearest case: deliberately setting small fires to prevent the conditions that produce large ones.
Why they are considered sustainable
Rotational farming. Some Indigenous groups, such as the Kayapo in the Amazon, use shifting agriculture to allow soil to regenerate between planting cycles, preventing nutrient depletion.
Controlled burning. Indigenous Australians have used fire-stick farming to manage forests, prevent large wildfires, and promote the growth of certain plants and animals. This promotes biodiversity and reduces the risk of catastrophic wildfires.
These methods focus on working with nature rather than over-exploiting it, helping preserve biodiversity and ecosystem balance.
Connect this to 3.1. Controlled burning is a resilience strategy in the sense used in 1.2: small, regular disturbances prevent fuel building up to the point where a single fire pushes the ecosystem past a tipping point. Suppressing all fire looks protective and is in fact the opposite — which is why fire ecologists now advocate for practices Indigenous Australians have used for millennia.
Threats to these practices
The internal threats are not failures of the communities. They follow from integration into a global economy that rewards different things.
External threats
Threat
What happens
Example
Population growth and economic development
Greater pressure on Indigenous lands for resources, agriculture and infrastructure
Deforestation in the Amazon threatens Indigenous farming and hunting as forest is cleared for cattle ranching or soy production
Climate change
Disrupts the traditional weather patterns and natural cycles that Indigenous practices rely on
In the Ecuadorian Amazon, communities historically used river flooding in the rainy season to improve fishing. Flooding is now more extreme, submerging farms and affecting crops, causing food insecurity
Government policies and lack of support
Many governments do not recognise Indigenous land rights, or prioritise economic development over traditional land management
In parts of Canada, government-sanctioned logging and mining on Indigenous lands has degraded ecosystems essential to hunting, fishing and spiritual practices
Internal threats
Threat
What happens
Aspiration for economic development
As Indigenous societies become more integrated into the global economy, there can be pressure to adopt modern development models that may not align with sustainable practices. Younger generations may prefer industrial agriculture or other economically profitable but less sustainable forms of land use, leading to overuse of natural resources
Erosion of traditional knowledge
The spread of modern education systems and cultural influences can lead to a loss of traditional ecological knowledge, making it harder for communities to maintain sustainable practices across generations
Be clear on the difference between traditional Indigenous methods and modern land management, and focus on how Indigenous methods prioritise sustainability. Exam questions may ask about both outside pressures such as deforestation and internal changes such as economic aspirations, so prepare both. Be careful not to romanticise: the internal threats are real, and they arise from communities facing the same economic pressures as everyone else.
Worked examples
WE 1
Traditional practices
Describe two traditional Indigenous land management practices and explain why they are sustainable. (4 marks)
Practice 1: rotational farming
The Kayapo in the Amazon use shifting agriculture, moving planting between areas so soil can regenerate between cycles.
Why it is sustainable
It prevents nutrient depletion, so the land remains productive over the long term rather than being exhausted.
Practice 2: controlled burning
Indigenous Australians use fire-stick farming to manage forests and promote the growth of certain plants and animals.
Why it is sustainable
It promotes biodiversity and reduces the risk of catastrophic wildfires by preventing fuel from accumulating.
Both work with natural cycles instead of overriding themname the community for each practice — it is what makes the example specific
WE 2
External pressure
Explain how climate change threatens traditional Indigenous land management. (3 marks)
Step 1: the dependency
Indigenous practices rely on traditional weather patterns and natural cycles, which climate change is disrupting.
Step 2: the example
In the Ecuadorian Amazon, communities historically used river flooding during the rainy season to increase the effectiveness of their fishing practices.
Step 3: the disruption
Flooding is now more extreme, submerging farms and affecting the growth of vital crops, leading to food insecurity in these communities.
Practices tuned to a predictable cycle fail when the cycle changesthe Ecuadorian flooding example is precise and easy to remember
WE 3
Internal change
Discuss the internal challenges facing traditional Indigenous land management. (4 marks)
Challenge 1: economic aspiration
As Indigenous societies become more integrated into the global economy, there is pressure to adopt modern development models that may not align with sustainable practices.
How this plays out
Younger generations within some communities may prefer industrial agriculture or other economically profitable but less sustainable land uses, leading to overuse of natural resources.
Challenge 2: knowledge loss
The spread of modern education systems and cultural influences can lead to the erosion of traditional ecological knowledge.
Why this matters
That knowledge is transmitted between generations rather than written down, so once the chain is broken it is very difficult to recover, making sustainable practices harder to maintain.
Both pressures come from integration, not from failureframing these as economic pressures rather than choices avoids sounding judgemental
💡 Exam tips
Name the three practices: rotational farming, controlled burning, sustainable fishing and hunting.
Attach a community to each: the Kayapo, Indigenous Australians.
Use the term fire-stick farming.
Separate external from internal threats clearly. Questions ask for both.
Have one named example per external threat: Amazon, Ecuador, Canada.
Emphasise the focus on long-term sustainability and future generations.
⚠ Common mistakes
Describing these practices as primitive. They are refined systems based on holistic ecological understanding.
Giving only external threats. Internal changes are explicitly examinable.
Treating controlled burning as destructive. It prevents catastrophic wildfires.
Romanticising Indigenous communities. Economic aspirations within them are a genuine pressure.
Forgetting government policy. Non-recognition of land rights is a named threat.
Vague examples. Name the community, the country and the practice.
Up next: Conservation and Environmental Justice. If Indigenous communities manage land sustainably, a difficult question follows: what happens when conservation itself removes them from it?
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