1. What are New Zealand's main natural assets?
New Zealand has significant natural capital including approximately 8 million hectares of native forests, which contain unique species found nowhere else on Earth. The country has extensive freshwater systems including rivers, lakes and wetlands. The marine and coastal environment is also important, with over 15,000 km of coastline. New Zealand is known for its high levels of endemism – many species like the kiwi, tuatara and kauri tree exist only in New Zealand (Statistics New Zealand, 2023).
About one-third of New Zealand's land area is managed by the Department of Conservation as public conservation land. This includes 13 national parks covering approximately 25,000 square kilometres (Department of Conservation, 2024).
2. What ecosystem services do these assets provide?
New Zealand's natural assets provide all four categories of ecosystem services as defined by the Millennium Ecosystem Assessment:
Provisioning services:
These include freshwater supply from rivers and aquifers, timber from both native and plantation forests, fish from marine and freshwater environments, and agricultural products from the land.
Regulating services:
Native forests provide carbon sequestration which helps regulate climate. Wetlands filter water and reduce flooding. Forests also help with erosion control, which is important given New Zealand's steep terrain and high rainfall.
Cultural services:
New Zealand's natural environment provides significant recreation and tourism value. National parks attract both domestic and international visitors. The natural environment also has spiritual significance, particularly for Māori.
Supporting services:
These include nutrient cycling in soils, pollination by native insects and birds, and habitat provision for native species.
3. How do these ecosystem services support New Zealand's economy?
Tourism is one of New Zealand's largest export earners and depends heavily on the natural environment. Research by the Department of Conservation found that tourism on public conservation land contributes approximately $3.4 billion per year to the economy (DOC, 2024). The "100% Pure New Zealand" brand is built on the country's clean, green image.
Agriculture is also a major part of the economy and depends on ecosystem services like soil fertility, water availability and pollination. The forestry sector contributes to GDP through timber exports.