Journal Article 2 N762921K75 2 Nitrogen 2 Soil 2 soil nitrogen availability Arctic plant productivity 1 Comment 1 plus ... Nitrogen Isotopes 1 Qinghai–Tibetan plateau 1 Research Support, Non-U.S. Gov't 1 dendroecological data 1 drought 1 increasing atmospheric CO2 concentrations 1 nitrogen cycling 1 nitrogen limitation 1 nutrient limitation 1 plant-soil feedback 1 shrub abundance 1 stable nitrogen isotope 1 temperature 1 moins ...