Environmental and cultural significance

Glaciated and periglacial landscapes hold important environmental and cultural value for various communities and scientific efforts. These areas often serve as sites of deep cultural meaning and provide opportunities for research and recreation.

Cultural importance

Certain glaciated landscapes are culturally significant, often tied to local traditions and beliefs. This significance can manifest in storytelling, sacred sites, and symbolic practices.

Key examples of cultural value:

• Inuit communities in North America - Storytelling traditions among these groups frequently draw on legends that reflect a profound knowledge of the tundra environment, helping to preserve cultural heritage.
• Himalayas in Nepal and Tibet - These mountains are viewed as sacred by local people, with practices such as adorning peaks like Mount Everest with colourful Tibetan prayer flags. Tibetan Buddhists hang these flags outside homes, believing that strong upland winds carry the inscribed prayers further.

Environmental research and study

Glaciated regions offer valuable insights into global processes, particularly through dedicated research facilities.

Role of polar research stations:

• Facilities like the British Antarctic Survey's Halley VI in Antarctica are used to investigate climatic and oceanic processes.
• By examining Antarctica's climate history, scientists gain understanding of past climate change events, which helps in modelling future climate scenarios.

Wilderness recreation

These landscapes attract people for outdoor activities, providing spaces for adventure in remote, natural settings. Hiking and climbing are common in glaciated areas, allowing visitors to experience the rugged terrain and scenery.

Economic opportunities

Glaciated and periglacial landscapes provide various economic benefits through resource extraction, land use, and visitor activities. These opportunities support local economies but must be balanced with environmental protection.

Mining activities

Mining in these areas taps into valuable mineral deposits, contributing significantly to regional wealth.

Key aspects of mining:

• Resources extracted include gold, silver, iron ore, lead, zinc, and copper.
• In Alaska, the mining industry generated US $3.1 billion in 2020, highlighting its economic impact by creating jobs and revenue.

Forestry operations

The climate in relict glacial uplands supports specific types of tree growth, leading to commercial forestry.

Features of forestry in these landscapes:

• Cold temperatures and high rainfall make these areas ideal for coniferous trees.
• Large companies in Canada and northern Europe manage extensive forestry plantations to produce timber and paper products.

Tourism development

The scenic beauty of glaciated regions draws tourists, boosting local economies through spending and job creation.

Attractions and economic benefits:

• Visitors are attracted to wildlife, mountains, and phenomena like the Northern Lights, with Alaska receiving around 2.5 million tourists annually.
• In mountainous areas like the Alps, ski resorts are prevalent, alongside other activities such as mountain biking and ziplining.

Farming practices

Upland glaciated landscapes are often used for specific types of agriculture that suit the terrain.

Characteristics of farming:

• Pastoral farming, which involves rearing livestock like sheep, is common due to the suitability of grassy uplands.
• In the Lake District National Park in the UK, 30% of the land is designated as common land, allowing communal grazing by local farmers. This system requires farmers to protect the landscape's beauty while generating income.

Energy production

Meltwater from glaciers is increasingly harnessed for renewable energy, particularly in remote or Arctic regions.

Methods of energy generation:

• Hydroelectric power (HEP) - Rising glacial meltwater around the Arctic Circle supports HEP plants, which currently produce over 85 GW of electricity. Northern Canada and Russia each have six major plants capable of generating 2.5 GW.
• Micro-hydro systems - In low-income countries like Nepal (e.g., Darbang), small-scale systems generate up to 120 kWh, powering rural industries and businesses. These work well in valleys with ribbon lakes, which are easily dammed.

Steep relief and low population densities in upland areas make HEP efficient, as there is minimal disruption to communities.

Biodiversity and adaptations in tundra regions

Tundra regions, which are periglacial areas characterised by cold, treeless plains, have unique but limited biodiversity due to their extreme conditions. The harsh climate limits species diversity, with higher latitudes experiencing even tougher environments.

Factors influencing low biodiversity

• The inhospitable climate, including long, dark winters and short summers, results in relatively low levels of plant and animal life.
• These ecosystems are fragile, meaning they recover slowly from disturbances like climate change or human activity.

Adaptations of flora and fauna

Species in the tundra have evolved specific traits to survive the cold, windy conditions and short growing seasons.

Plant adaptations:

• Plants grow to limited heights to withstand strong winds and make the most of brief growing periods.
• Dominant vegetation includes low-level plants like grasses and mosses, which provide food for herbivores.

Animal adaptations and behaviours:

• Mammals are fewer compared to other ecosystems, but species like Arctic hares are common in northern Russia and Canada.
• Larger animals, such as caribou, migrate seasonally: north in summer to graze on grasses and south when snow arrives.
• In spring, melting permafrost creates wet areas that breed flies and insects, attracting migratory birds for feeding.

Potential future value

Although biodiversity is limited, many tundra species remain understudied. They could hold unknown benefits, such as in pharmaceutical development for new medicines.

Seasonal variations in biodiversity:

• Summer biodiversity can differ greatly from winter, with more insects and birds present during warmer months.

Role in maintaining natural systems

Glaciated and periglacial landscapes play a vital part in global natural processes, particularly in the water and carbon cycles. These systems help regulate climate and provide essential resources.

Contribution to the water cycle

The relationship between ice, meltwater, and the landscape is central to water storage and distribution.

Key elements of water storage and use:

• The cryosphere holds about 2% of the world's water, accounting for over 68% of global freshwater.
• In Alpine regions, meltwater replenishes drinking water supplies.
• In drier areas, such as the Bolivian foothills of the Andes, farmers use glacial meltwater for irrigating farmland, providing drinking water, and generating HEP.
• Precipitation in these areas varies: snow and hail build ice stores in the zone of accumulation, while rainfall accelerates ablation and increases meltwater stores.
• River levels rise in spring and summer with higher temperatures but can drop to near zero in winter.

Importance as carbon stores

These landscapes act as significant reservoirs for carbon, helping to mitigate climate change.

Types of carbon storage:

• Permafrost holds dead organic material in a frozen state, preventing decomposition. Scientists estimate it contains around 1500 gigatonnes of carbon.
• Glaciated areas store carbon in fossil fuels, with an estimated 3.2 trillion kWh of energy potential from natural gas under Yukon in Canada.