Wetland Ecosystem Services
1.14 WETLAND ECOSYSTEM SERVICES WETLAND ECOSYSTEM SERVICES Beverley R. Clarkson1, Anne-Gaelle E. Ausseil2, Philippe Gerbeaux3 1 Landcare Research, Private Bag 3127, Hamilton 3240 New Zealand 2 Landcare Research, Palmerston North, New Zealand 3 Department of Conservation, Christchurch, New Zealand ABSTRACT: Wetlands provide important and diverse benefi ts to people around the world, contributing provisioning, regulating, habitat, and cultural services. Critical regulating services include water-quality improvement, fl ood abatement and carbon management, while key habitat services are provided by wetland biodiversity. However, about half of global wetland areas have been lost, and the condition of remaining wetlands is declining. In New Zealand more than 90% of wetland area has been removed in the last 150 years, a loss rate among the highest in the world. New Zealand Māori greatly valued wetlands for their spiritual and cultural signifi cance and as impor- tant sources of food and other materials closely linked to their identity. The remaining wetlands in New Zealand are under pressure from drainage, nutrient enrichment, invasive plants and animals, and encroachment from urban and agricultural development. In many countries, the degradation of wetlands and associated impairment of ecosystem services can lead to signifi cant loss of human well-being and biodiversity, and negative long-term impacts on economies, communities, and business. Protection and restoration of wetlands are essential for future sustainability of the planet, providing safety nets for emerging issues such as global climate change, food production for an increasing world population, disturbance regulation, clean water, and the overall well-being of society. Key words: climate regulation, ecological integrity, economic valuation, fl ood regulation, natural ecosystem, restoration.
[Show full text]