Biological Diversity Ecosystem Condition and Productivity Soil and Water Role in Global Ecological Cycles Economic and Social Benefits Society's Responsibility
Indicator 2.1 Total growing stock of both merchantable and nonmerchantable tree species on forest land Indicator 2.2 Additions and deletions of forest area by cause Indicator 2.3 Area of forest disturbed by fire, insects, disease, and timber harvest Indicator 2.4 Area of forest with impaired function due to ozone and acid rain Indicator 2.5 Proportion of timber harvest area successfully regenerated

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