Journal of Ecosystem & Ecography
Open Access

Abstract

Acacia mangium has been planted in large areas of southern China ever since its introduction into China in 1979. This article reports on Acacia mangium biomass accumulation and biodiversity changes over a period of 15 years in a plantation in southern China. The biomass of Acacia mangium increases up to 1 st to 7 th year, after which the growth slows down. The total biomass accumulated was 196.96 t/ha over 15 years. The plant diversity in understory also increased from 1 to 11 year. The total number of species increased up to 13 and the Shannon-Wiener index was 1.41 in 15 years old. However, there were no native tree species to recolonize in the plantation. A 11-year-old Acacia mangium can facilitate the conversion of degraded lands into mixed native species forests. This paper also points out the N and P deficiency may be inhibitive factor to biomass growth.

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