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We developed a tree-ring chronology based on 52 ring-width series from 25 Pinus tabulaeformis trees at Tianlong Mountain (TLM) using the signal-free method. TLM is located in the middle reaches of the Fen River, North China, and is influenced by the East Asian monsoon system. Tree growth was highly correlated (0.789) with the Palmer Drought Severity Index (PDSI) from May to July and indicated a drought-stress...
The zonality of vegetation was described with atlas or graph in the world, in a country, or in a region, but the correlations between vegetation and longitude and latitude or altitude was drawn indirectly with statistical methods. This paper studies quantitatively the correlations on the basis of formations and distributions of vegetation. Based on the vegetation atlas of Shanxi, every patch of vegetation...
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