Ecosystem services imply the natural environmental conditions and their effectiveness
formed and sustained by ecosystems and ecological processes, on which, human life relies
for existence. They not only supply human with the production of ecosystem goods, such as
food, forage, timber, fuel, natural fiber and pharmaceuticals, but also perform fundamental
life support services, which include the purification of air and water, detoxification and
decomposition of wastes, regulation of climate, regeneration of soil fertility, production and …

Ecosystem services and their economic valuation | CiNii Research … Ecosystem services
and their economic valuation …