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Introduction
This activity is suitable for children of ages 14 - 16 years old.
A wide range of ecological goods and services are provided by the steppe ecosystems. These include:
clean water
soil erosion control
fresh air
grazing land
biodiversity
provision of sinks for wastes and residues
Although goods and services have no market price, they have economic benefits which can be quantified by looking at the costs of replacing them with artificial alternatives, representing expenditures saved by their existence, which can be used as estimates of their economic value.
Введение
Это упражнение подходит для детей 14-16 лет
Различные экологические блага и услуги степные экосистемы предоставляют человеку. Это включает в себя: