The total economic value of an ecosystem:

a. is composed of the direct values an ecosystem provides upon which a price can be placed, such as crops and medicinal plants.
b. is the monetary value of all of the services an ecosystem provides. includes all of the ecosystem services, future uses, and non-use values (such as cultural, intrinsic, and aesthetic values) of an ecosystem.
c. is composed of the utilized services and goods an ecosystem provides, such as water storage and filtration, even if they are not directly paid for.
d. is the monetary value of all of the services an ecosystem provides.
e. includes all of the ecosystem services, future uses, and non-use values (such as cultural, intrinsic, and aesthetic values) of an ecosystem.