Table 31b continued

Goods and Services

Rivers: Unmanaged

Service Rank




Service Rank



Water quantity

organic matter, geomorphology moisture retention

Supporting Services Waste disposal 3

Climate modification 2

nutrient cycling, decomposition

organic matter burial in sediments, decomposition

Calcium carbonate deposition

bacterial-based food webs enhance C loss (but still net C accumulation), CH, emission from moisture, complexing, etc.

C sequestration 1

Trace gas production — 1

Irrigation 1

Transport 3

Cultural Services Recreation



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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