Examination of growth rings

Examination of growth rings

E812/0035 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 30.5MB

Downloadable file size: 2.8MB

Price image Pricing

Please login to use the price calculator


Credit: ADAM HART-DAVIS/SCIENCE PHOTO LIBRARY.

Caption: Examination by the Forestry Commission in Freiburg West Germany of growth rings from the trunk of a Black Forest fir tree, showing evidence of acid rain damage. Each ring is an expression of one year's growth & reflects the growing conditions over the period. The fir tree examined here shows a collapse of ring growth over the last 20 years (outer rings immediately beneath the bark). The rings are smaller & closer together than previous years (inner rings), indicating a stunted growth history. This is linked to acid rain pollution, the lowering of pH levels in rainfall due to sulfur dioxide emissions into the atmosphere.

Release details: Model release not required. Property release not required.

Keywords: acid rain, air pollution, atmospheric, environment, environmental, growth ring, tree rings

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.