Estimates and relationships between aboveground and belowground resource exchange surface areas in a Sitka spruce managed forest
Our knowledge of the nature of belowground competition for moisture and nutrients is limited. In this study, we used an earth impedance method to determine the root absorbing area of Sitka spruce (Picea sitchensis (Bong.) Carr.) trees, making measurements in stands of differing density (2-, 4- and 6-m inter-tree spacing). We compared absorbing root area index (RAIabsorbing; based on the impedance measure) with fine root area index (RAIfine; based on estimates of total surface area of fine...[Show more]
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