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Ecosystem Services

We know that forests are more than just trees. To ensure we and others recognize the full value our timberlands offer, we developed a program to measure and report on 18 ecosystem services provided by our forests.

We believe we are leaders in this area. We share this information with the public to help educate about the many benefits forests provide, to demonstrate transparency about alternate revenue sources, and to help influence global reporting standards for ecosystem services.

METHODOLOGY

We adopted the terminology used by the Millennium Ecosystem Assessment, which separates ecosystem services into four categories:

  • Provisioning: Often described as ecosystem goods, these services represent the tangible benefits provided by an ecosystem. Many of these services are relatively easy to quantify because they have a market value.
  • Regulatory: These services represent the ecosystem processes that are needed to maintain human health and ecosystem infrastructure. This category is often more difficult to quantify because the processes are intangible and are mostly considered public goods.
  • Supporting: These services enable the other categories to work, and can also be described as an ecosystem process.
  • Cultural: These services are intangible values people derive from ecosystems.

THE DATA

Ecosystem Service Scale Reporting Unit 2012 2013
Provisioning
Fiber - roundwood harvested All Weyerhaeuser timberlands Volume (thousands m3) 19,421 20,844
Food - mushrooms/berries US West # of acres covered by permits 1,024,498 1,045,850
Greenery US West # of acres covered by permits 778,605 853,400
Tons sold for noble fir boughs 499 8,214
Livestock - grazing Uruguay, Canada, and West acres of grazing leases 422,130 480,401
Honey production Uruguay and US West # bee box (hive) leases 19,543 17,465
Biochemical - wood extractives US South and Uruguay # Tons of soap (potential) based on extractive supply 941,058 977,997
# Gallons of turpentine (potential) based on extractives supply 126,240 131,195
# Lbs harvested of turpentine (traditional method) 129,630 33
Fur production Canada # permits 300 495
Genetic resources (tree improvement) All Weyerhaeuser timberlands # improved seedlings planted 52,888,570 59,961,005
Regulating
Water regulation (quantity and quality) All Weyerhaeuser timberlands Percent harvested area planted within 2 yrs; 99% 99%
Riparian buffer/perennial stream length (m2/m)* 160 160
*Based on current public stream layer datasets.
Fire resistance All Weyerhaeuser timberlands Acres burned (not including prescribed burns) 5,430 5,181
Supporting
Habitat - protected US and Uruguay Acres, including biotopes, riparian buffers, and wetland mitigation banks 891,446 878,257
Canada 5,519,744 5,459,812
Habitat - managed US and Canada Acres of early-successional habitat 2,635,935 2,586,441
Acres of mid-successional habitat 10,308,288 10,423,166
Formal Habitat Management Agreements US and Canada Acres 4,492,773 4,502,351
Habitat - fish habitat/aquatics US West # upgraded stream crossings/drainage projects (cumulative) 1,472 1,542
Soil productivity All Weyerhaeuser timberlands Information from soil productivity research (updated annually) see link see link
Cultural
Hunting US South # people in hunt clubs 56,852 57,843
US West # of permits in game management units 61,174 56,458
Special sites All Weyerhaeuser timberlands # special sites 1,314 1,966
Education (school tours/groups) US and Uruguay # of visitors 162,110 196,823

Last updated May 22, 2014