The CENTURY Soil Organic Matter Model

The CENTURY version 5 agroecosystem model is the latest version of the soil organic model developed by Parton et al. (1987). This model simulates C, N, P, and S dynamics through an annual cycle over time scales of centuries and millennia. The producer submodel may be...

Soil organic carbon balance using Century model

Abstract Mathematical modelling has widely been used during the last 20 years to estimate and predict soil organic carbon (SOC) balance and nutrients dynamic on the landscape scale. The model simulations are applied and developed to assess the long-term effects of...

U.S. Energy-Related Carbon Dioxide Emissions, 2013

U.S. ENERGY-RELATED CARBON DIOXIDE EMISSIONS INCREASED 2.5% IN 2013 Energy-related carbon dioxide emissions (CO2) increased from 5,267 million metric tons (MMmt) in 2012 to 5,396 MMmt in 2013 (2.5%). The 2013 increase was largely the result of colder weather leading...

Improving the Air We Breathe

The Salt Lake Valley, long recognized for its spectacular mountain views and abundant outdoor activities, has in recent years earned a negative reputation for its air quality problems. During winter months, the valleys of Northern Utah consistently rank among the...