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Month: July 2009

Why Multiplex?

Why Multiplex?

Soil CO2 flux (FCO2) is usually the largest component of ecosystem respiration. It is also important for understanding soil carbon sequestration potential and soil carbon dynamics. FCO2 has a strong temporal variation over the course of a day or a season because of changes in soil temperature, soil moisture, above-ground vegetation physiological activities, and other driving variables. It also shows a strong spatial variation because of high heterogeneity…

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6400-22L Lighted Conifer Chamber

6400-22L Lighted Conifer Chamber

The 6400-22 Opaque Conifer Chamber is the newest addition to the long line of leaf chambers and accessories available for use with the LI-6400/LI-6400XT Portable Photosynthesis System. The 6400-22L Package combines the 6400-22 Opaque Conifer Chamber and the 6400-18 RGB Light Source, which are also available separately. The 6400-22 is constructed with an opaque plastic material that has excellent resistance to water sorption. It is designed to…

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Sand Hills: A Story to be Told

Sand Hills: A Story to be Told

What can a grass-stabilized sand dune tell us about the future? What can it tell us about the past? That depends on where you look and how long you look at it. For Dr. Dave Wedin from the University of Nebraska at Lincoln, studies of the Nebraska Sand Hills might help explain why some arid, sandy landscapes are blowing desert-like dunes while others are productive, vegetated grazing lands.

Recent…

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Green Roofs Help Keep it Cool

Green Roofs Help Keep it Cool

Normally, one wouldn’t walk bare-foot on the roof in midsummer. But, it’s a different story when your roof is green. A green roof is covered with living vegetation rather than conventional roofing materials – and it can provide a cool soft place to rest your feet.

In recent years, green roofs have emerged from an obscure niche and entered the mainstream. Cities around the world, from Chicago to Stuttgart, are adopting initiatives to promote, or even require, the installation of…

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