Root system spatial distribution of different aged Armeniaca vulgaris cv. Luntaibaixing in arid oasis under irrigation. Spatial distribution of sulfur dioxide around a tobacco bulk-curing workshop cluster. Multiple-scale analysis on spatial distribution changes of forest carbon storage in Heilongjiang Province, Northeast China based on local statistics. Species composition and community structure of  a spruce-fir forest and a larch forest  on the northern slope of Changbai Mountains, Northeast China. Woody plant species composition and community structure in residual fragments of broad-leaved Korean pine mixed forests in Changbai Mountains area.