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4 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2023

AmeriFlux FLUXNET-1F US-Wi4 Mature red pine (MRP)

This is the AmeriFlux Management Project (AMP) created FLUXNET-1F version of the carbon flux data for the site US-Wi4 Mature red pine (MRP). This is the FLUXNET version of the carbon flux data for the site US-Wi4 Mature red pine (MRP) produced by applying the standard ONEFlux (1F) software. Site Description - The Wisconsin Mature Red Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. As an assemblage, the ten Wisconsin sites are indicative of the successional stages of development in the predominant stand types of a physically homogeneous landscape. Thinned every 7 years until they reach 100 to 150 years of age, the red pine plantations of all ages occupy approximately 25% of the region.

Chen, Jiquan↗
DOE OSTI2016

AmeriFlux US-Wi4 Mature red pine (MRP)

This is the AmeriFlux version of the carbon flux data for the site US-Wi4 Mature red pine (MRP). Site Description - The Wisconsin Mature Red Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. As an assemblage, the ten Wisconsin sites are indicative of the successional stages of development in the predominant stand types of a physically homogeneous landscape. Thinned every 7 years until they reach 100 to 150 years of age, the red pine plantations of all ages occupy approximately 25% of the region.

Chen, Jiquan↗
DOE OSTI2019

Materials Data on WI4 by Materials Project

W3I10(I)2 crystallizes in the orthorhombic Pbcn space group. The structure is one-dimensional and consists of eight iodine molecules and four W3I10 ribbons oriented in the (1, 0, 0) direction. In each W3I10 ribbon, there are three inequivalent W4+ sites. In the first W4+ site, W4+ is bonded to five I1- atoms to form a mixture of corner and edge-sharing WI5 square pyramids. There are a spread of W–I bond distances ranging from 2.78–2.91 Å. In the second W4+ site, W4+ is bonded to five I1- atoms to form a mixture of corner and edge-sharing WI5 square pyramids. There are a spread of W–I bond distances ranging from 2.79–2.91 Å. In the third W4+ site, W4+ is bonded to five I1- atoms to form edge-sharing WI5 square pyramids. There are a spread of W–I bond distances ranging from 2.78–2.89 Å. There are eleven inequivalent I1- sites. In the first I1- site, I1- is bonded in a 6-coordinate geometry to two W4+ atoms. In the second I1- site, I1- is bonded in a 12-coordinate geometry to two W4+ atoms. In the third I1- site, I1- is bonded in a distorted single-bond geometry to one I1- atom. The I–I bond length is 2.82 Å. In the fourth I1- site, I1- is bonded in a 12-coordinate geometry to two W4+ atoms. In the fifth I1- site, I1- is bonded in a bent 120 degrees geometry to two equivalent W4+ atoms. In the sixth I1- site, I1- is bonded in a distorted single-bond geometry to one W4+ and one I1- atom. The I–I bond length is 3.16 Å. In the seventh I1- site, I1- is bonded in a 12-coordinate geometry to two W4+ atoms. In the eighth I1- site, I1- is bonded in a bent 120 degrees geometry to two equivalent W4+ atoms. In the ninth I1- site, I1- is bonded in a 12-coordinate geometry to two W4+ atoms. In the tenth I1- site, I1- is bonded in a 3-coordinate geometry to two W4+ atoms. In the eleventh I1- site, I1- is bonded in a distorted linear geometry to two I1- atoms.

36 MATERIALS SCIENCE↗