Table 31c Positive ecosystem service rankings relative within fresh waters not quantitative for managed and unmanaged wetlands

Explanation of service values:

(—3) = strong disservice; (0) = neutral; (3) = strong positive; n.a. = not applicable.

Wetlands: Unmanaged Wetlands: Managed

Service

Service

Goods and Services

Rank

Biotic

Abiotic

Rank

Biotic

Abiotic

Provisional Services

Food production

Plant

1

**

***

3

**

***

Animal

2

***

***

1

***

***

Other products

Fuel/energy

0

n.a.

n.a.

0

n.a.

n.a.

Fiber

2

**

***

0

**

***

Potable water

3

***

***

0

n.a.

n.a.

Water quantity

0

n.a.

n.a.

-1

n.a.

***

Supporting Services

Waste disposal

3

***

***

2

***

**

applica-

tion of

manure

Climate modification

C sequestration

0

n.a.

n.a.

0

n.a.

n.a.

Trace gas production

3

***

***

3

***

***

Irrigation

0

n.a.

n.a.

0

n.a.

n.a.

Transport

0

n.a.

n.a.

0

n.a.

n.a.

Cultural services

Recreation

1

***

***

0

n.a.

n.a.

Aesthetic

2

**

***

2

***

***

Asterisks indicate the relative importance of biotic and abiotic factors, from weak (*) to strong (***), in the provision of the associated good or service.

Asterisks indicate the relative importance of biotic and abiotic factors, from weak (*) to strong (***), in the provision of the associated good or service.

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