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马占相思 (Acacia mangium)是含羞草科金合欢属的一种常绿乔木 ,原产澳大利亚、巴布亚新几内亚、印度尼西亚等国家的湿润热带地区 ,是一种生长迅速、用途广泛的强阳性树种 ,2年生树木胸径和树高年生长量达到高峰值 ,分别为 3.7cm和 3.3m,3～ 4年生树木胸径和树高年生长量分别稳
Acacia mangium is an evergreen tree of the genus Acacia, native to the humid tropical regions of Australia, Papua New Guinea, Indonesia and other countries. It is a rapidly growing and widely used strong positive species, The annual DBH and tree annual growth of 2-year-old trees reached the peak values of 3.7cm and 3.3m, respectively. The DBH and tree height annual growth of 3 ~ 4-year-old trees were stable