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Global maps of soil temperatureNARA Subscribed
Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation canopies and near the ground surface, where critical ecosystem functions occur and most terrestrial species reside. Here, we provide global maps of soil temperature and bioclimatic variables at a 1‐km 2 r...
Free Air CO 2 Enrichment of potato ( Solanum tuberosum L.): development, growth and yieldNARA Subscribed
A FACE (Free Air CO 2 Enrichment) experiment was carried out on Potato ( Solanum tuberosum L., cv. Primura) in 1995 in Italy. Three FACE rings were used to fumigate circular field plots of 8 m diameter while two rings were used as controls at ambient CO 2 concentrations. Four CO 2 exposure levels were used in the rings (ambient, 460, 560 and 660 μmol mol –1 ). Phenology and crop development, canopy surface temperature, above‐...
Free Air CO 2 Enrichment of potato ( Solanum tuberosum , L.): design and performance of the CO 2 ‐fumigation systemNARA Subscribed
Free Air CO 2 Enrichment (FACE) systems are used to fumigate unconfined field plots with CO 2 . As these installations can treat a sufficiently large area without interfering with natural climatic conditions, they are considered important tools for global change research worldwide. However, there is general consensus that elevated capital costs of existing FACE systems as well as high running costs may prevent their applicatio...
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