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Woody plants are some of the tallest, largest, and longest-lived lifeforms on Earth. Their raw materials have literally framed and supported past human development, continues to do so today, and may aid humanity to combat and cope with future challenges, like climate change. All of the ecological and societal achievements of woody plants are due, in part, to a thin barrier between their internal and external worlds: bark. There is a lot of bark, too. Current estimates find that there is >40 million km2 of bark surface area, which is nearly as large as the entire Asian continent! Bark acts as both an environmental barrier (to pests and fire, for example) and an interface between woody plants ...
The No. 1 source for information on the men's and women's pro game.
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NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
Quantifying and Modeling Soil Structure Dynamics emphasizes a systems approach to how soil structure changes in response to inputs and to the environment. Soil structure is a dynamic, complex system affected by tillage, wheel traffic, roots, soil life, shrink–swell, and freeze–thaw. In turn, soil structure affects root growth and function, soil fauna, solute transport, water infiltration, gas exchange, thermal and electrical conductivities, traffic bearing capacity, and more. Ignoring soil structure or viewing it as “static” can lead to poor predictions and management. Readers will especially appreciate the description of soil structure influence on endpoints, such as environmental contamination and efficient water use, and how models should be adjusted to include dynamic soil structure components for accurate outputs.