Saturday, April 18, 2015

Study puts a price on the help that nature provides agriculture

Sylvia Kantor in the Washington State University News: A team of international scientists has shown that assigning a dollar value to the benefits nature provides agriculture improves the bottom line for farmers while protecting the environment. The study confirms that organic farming systems do a better job of capitalizing on nature’s services.

Scientists from Australia, Denmark, New Zealand, the United Kingdom and the United States describe the research they conducted on organic and conventional farms to arrive at dollar values for natural processes that aid farming and that can substitute for costly fossil fuel-based
inputs. The study appears in the journal PeerJ.

“By accounting for ecosystem services in agricultural systems and getting people to support the products from these systems around the world, we move stewardship of lands in a more sustainable direction, protecting future generations,” said Washington State University soil scientist John Reganold, one of the study’s authors.

Farmers use cover crops like hairy vetch mixed with triticale or rye grass to supply organic matter to soil and make nitrogen available to plants. (Photos by Sylvia Kantor, WSU)

Earthworms turning the soil, bees pollinating crops, plants pulling nitrogen out of the air into the soil and insects preying on pests like aphids – these are a few of nature’s services that benefit people but aren’t often factored in to the price we pay at the grocery store.

The value of ecosystem service benefits provided to people by nature is rarely quantified experimentally in agricultural studies and is generally not taken into account in the real world of economic markets...

A bee pollinating a flower, shot by JoĆ£o Carvalho, public domain

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