Agriculture

Wind turbines may have beneficial effects for crops
December 9, 2016 05:15 PM - Iowa State University

A multi-year study led by an Iowa State University scientist suggests the turbines commonly used in the state to capture wind energy may have a positive effect on crops.

Gene Takle, a Distinguished Professor of agronomy and geological and atmospheric sciences, said tall wind turbines disbursed throughout a field create air turbulence that may help plants by affecting variables such as temperature and carbon dioxide concentrations.

Tongass Forest Plan Amendment supports sustainable communities and viable economies - Amended plan focuses on transition to young growth harvest and renewable energy development
December 9, 2016 12:26 PM - USDA Forest Service

KETCHIKAN, Alaska, December 9, 2016 – M. Earl Stewart, the Forest Supervisor for the Tongass National Forest, Alaska Region, has signed the final Record of Decision (ROD) for the amended Tongass National Forest Land and Resource Management Plan (Tongass Forest Plan). The Final ROD documents the Forest Supervisor’s rationale for approving the Tongass Forest Plan Amendment. The Tongass Forest Plan Amendment will become effective in 30 days.

Bioenergy grass can withstand freezing temperatures
November 30, 2016 09:39 AM - University of Illinois College of Agricultural, Consumer and Environmental Sciences (ACES)

March 2012 was unusually warm. Biomass crops around the Midwest were well established and thriving. But when a late frost came in mid-April, all of that changed.

“When I went out in the morning, I was just shocked,” says University of Illinois agronomist D.K. Lee. “All the grasses were covered in frost. By noon, Miscanthus and switchgrass had turned black. The only plant that was untouched was prairie cordgrass.”

Controlling plant regeneration systems may drive the future of agriculture
November 2, 2016 10:50 AM - Vlaams Instituut voor Biotechnologie

The ability to self-repair damaged tissue is one of the key features that define living organisms. Plants in particular are regeneration champions, a quality that has been used for centuries in horticultural techniques such as grafting. Belgian scientists from VIB and Ghent University have now discovered a key protein complex that controls plant tissue repair. Understanding this mechanism is of great agricultural importance: crops and edible plants might be cultivated more efficiently and made more resistant to parasitic plants. The results are published in the leading journal Nature Plants. 

 

Reforesting Kilimanjaro could ease East Africa's severe water shortages
October 19, 2016 04:09 PM - United Nations News Centre

There is a need to reforest Africa’s highest mountain to help protect vital water supplies that are under threat across large parts of East Africa, a UN Environment report urged today.

The loss of Mount Kilimanjaro’s forests could trigger water crisis as rivers begin to dry up, notes the report, entitled Sustainable Mountain Development in East Africa in a Changing Climate, which was launched at the World Mountain Forum in Uganda today.

Scientists creating super grass to cut methane emissions from cows
October 13, 2016 02:02 PM - Yale Environment 360

Danish scientists are developing a grass that will cut down how often cows burp and pass gas — reducing the amount of methane, a potent greenhouse gas, they release into the atmosphere.

To Help Bees, Skip Herbicides and Pesticides, Keep Lawns Naturally Diverse
October 7, 2016 04:23 PM - University of Massachusetts Amherst

Declining populations of pollinators is a major concern to ecologists because bees, butterflies and other insects play a critical role in supporting healthy ecosystems. Now a new study from urban ecologists at the University of Massachusetts Amherst suggests that when urban and suburban lawns are left untreated with herbicides, they provide a diversity of “spontaneous” flowers such as dandelions and clover that offer nectar and pollen to bees and other pollinators. 

Future increase in plant photosynthesis revealed by seasonal carbon dioxide cycle
October 4, 2016 07:11 AM - University of Exeter

Doubling of the carbon dioxide concentration will cause global plant photosynthesis to increase by about one third, according to a paper published in the journal Nature

The study has relevance for the health of the biosphere because photosynthesis provides the primary food-source for animal life, but it also has great relevance for future climate change.

Farming with forests
October 3, 2016 02:28 PM - University of Illinois College of Agricultural, Consumer and Environmental Sciences

Feeding the world’s burgeoning population is a major challenge for agricultural scientists and agribusinesses, who are busy developing higher-yielding crop varieties. Yet University of Illinois researchers stress that we should not overlook sustainability in the frenzy to achieve production goals.

More than a third of the global land area is currently in food production. This figure is likely to expand, leading to deforestation, habitat loss, and weakening of essential ecosystem services, according to U of I agroecologist Sarah Taylor Lovell and graduate student Matt Wilson. To address these and other problems, they are promoting an unconventional solution: agroforestry.

Wetlands and agriculture, not fossil fuels could be causing a global rise in methane
September 30, 2016 07:07 AM - Royal Holloway University of London

Research published today in the American Geophysical Union’s journal Global Biogeochemical Cyclesshows that recent rises in levels of methane in our atmosphere is being driven by biological sources, such as swamp gas, cow burps, or rice fields, rather than fossil fuel emissions.

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