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In the past decades the decline of Masson pine (Pinus massoniana) forest caused by soil acidification due to excess sulphur (S) and nitrogen (N) input has become common in Chongqing, China. Schima superba, an excellent shade-tolerant and fire-resistant species, is believed to be more resistant to soil acidification than Masson pine. Accordingly, its saplings were often grown in acidified and declining...
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