41 McLaughlin, S.B.; Nosal, M.; Wullschleger, S.D.; Sun, Ge. 2007. Interactive effects of ozone and climate on tree growth and water use in a Southern Appalachian forest in the USA. New Phytologist. 174: 109-124.
New studies with forest trees and small watersheds suggest that vegetation will use more water when exposed to increased levels of the air pollutant ozone, and thus the effects of drought predicted for a warmer climate may be amplified. We found that current levels of ozone in the mountains of eastern Tennessee amplified the effects of climate stresses on large tree growth, transfer of water from soil to the atmosphere, and rates of stream flow from forested watersheds in the region. This new research suggesting that current levels of ozone amplify water loss of forests could be important in providing improved estimates of the future effects of global warming on water use and availability in natural systems. The researchers stress the need to test these concepts further with additional forest types and climatic systems.
42 McLaughlin, S.B.; Wullschleger, S.D.; Sun, G.; Nosal, M. 2007. Interactive effects of ozone and climate on water use, soil moisture content, and streamflow in a Southern Appalachian forest in the USA. New Phytologist. 174: 125-136.
Documentation of the degree and direction of effects of ozone on transpiration of canopies of mature forest trees is critically needed to model ozone effects on forest water use and growth in a warmer future climate. Patterns of sap flow in stems and soil moisture in the rooting zones of mature trees, coupled with late-season stream flow, in three forested watersheds in east Tennessee were analyzed to determine relative influences of ozone and other climatic variables on canopy physiology and stream flow patterns. This new research suggesting that current levels of ozone amplify water loss of forests could be important in providing improved estimates of the future effects of global warming on water use and availability in natural systems. The researchers stress the need to test these concepts further with additional forest types and climatic systems.
Repeal Existing Regulations, Including Obamacare And Dodd-Frank. Obamacare, a $1 trillion bomb that our nation cannot afford, included more than 40 provisions that require, permit, or contemplate rulemaking by federal agencies and established dozens of new governmental organizations or advisory boards. Dodd-Frank fails to solve \"too big to fail\" and guarantees slow credit and slow productivity gains for the near future. Dramatically Rein In The EPA. While the nation struggles to recover from economic turmoil, EPA has imposed vast new rules on the nation's energy producers, crippling one of the most critically important components of economic recovery: energy supply. Among the rules Gov. Huntsman will oppose is a new ozone rule that would effectively halt new construction.
Make Free Trade A Priority Again. For 2.5 years, the President has failed to act on three trade agreements with South Korea, Colombia and Panama - Gov. Huntsman would make these agreements a priority. Furthermore, as president, Gov. Huntsman would immediately pursue new trade opportunities with other nations, including Japan, India and Taiwan. Click here to download the full 12-page plan now. 153554b96e