Daily Archives: June 13, 2012

The Perfect Milk Machine: How Big Data Transformed the Dairy Industry

By Alexis Madrigal
The Atlantic – While there are more than 8 million Holstein dairy cows in the United States, there is exactly one bull that has been scientifically calculated to be the very best in the land. He goes by the name of Badger-Bluff Fanny Freddie.

Already, Badger-Bluff Fanny Freddie has 346 daughters who are on the books and thousands more that will be added to his progeny count when they start producing milk. This is quite a career for a young animal: He was only born in 2004…. Read More

Source and Photo: The Atlantic, May 21st, 2012
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Impacts of urban greenspace on offsetting carbon emissions for middle Korea

Science Direct – Carbon dioxide is an important greenhouse gas and a major agent of climate change. This study quantified carbon (C) emissions from energy consumption and C storage and uptake by greenspace for three cities in middle Korea: Chuncheon, Kangleung, and Seoul. Carbon emissions were estimated using C emission coefficients for fossil fuels consumed. Carbon storage and uptake by woody plants were computed applying biomass equations and radial growth rates. The soils in Chuncheon were cored to analyze organic C storage. Annual C emissions were 37·0 t/ha/yr in Kangleung, 47·2 t/ha/yr in Chuncheon, and 264·9 t/ha/yr in Seoul. Mean C storage by woody plants ranged from 26·0 to 60·1 t/ha for natural lands within the study cities, and from 4·7 to 7·2 t/ha for urban lands (all land use types except natural and agricultural lands). Mean annual C uptake by woody plants ranged from 1·60 to 3·91 t/ha/yr for natural lands within the cities, and from 0·53 to 0·80 t/ha/yr for urban lands. There were no significant differences (95% confidence level) between the cities in C storage and uptake per ha for urban lands. Organic C storage in Chuncheon soils (to a depth of 60 cm) averaged 31·6 t/ha for natural lands and 24·8 t/ha for urban lands. Woody plants stored an amount of C equivalent to 6·0–59·1% of total C emissions within the cities, and annually offset total C emissions by 0·5–2·2%. Carbon storage in soils was 1·2 times greater than that by woody plants in Chuncheon. The C reduction benefits of woody plants were greater in Chuncheon and Kangleung, where areal distribution of natural lands was larger and the population density lower than in Seoul. Strategies to increase C storage and uptake by urban greenspace were explored.

Source: Science Direct
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