Species diversity of sevenman-made broad-leaved mixed forests in South China
2002
Z. Y. Yu | H. Ren | S. L. Peng
Seven man-made broad-leaved mixed forests withan area of 6.4 ha were established in 1964-1979 on an extremely degraded land inSouth China. The number of species and individuals and Shannon-Wiener Index(H) of the plantations increased gradually after afforestation. The Rvalue of someof the plantations were close to that of the secondary forest. A total of 47 nativespecies invaded and some planted species disappeared in the plantations in 30years. However, no tree invaded the contrasting barren land since reforestation. Thissuggested that the process of natural restoration of the tropical seasonal rain forestis a potentially slow process in the extremely degraded ecosystem, but plant diversityof tropical seasonal rain forest can be restored after afforestation in naturalcondition. Natural succession cannot be considered as a useful managementoption in extremely degraded region.
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