大叶相思(Acacia auriculaeformisA.Chum)具根瘤,有固氮能力,耐干旱瘠薄土壤;枯枝落叶量多,能改良土壤;易繁殖,生长快;萌芽能力强,生物量多,是薪炭和水土保持的优良树种。我市从1983年开始在平和县侵蚀劣地引种,随后逐步推广到全市九县一区,至1989年已栽种3277.4公顷,定植867.82万株。一、具有适生的自然环境 Acacia auriculaeformisA.Chum has a nodule with nitrogen fixation capability and drought-resistant and infertile soils; the amount of litter can improve the soil; the easy reproduction and fast growth; the more sprouting ability and biomass, Good tree species. Since 1983, the city introduced the bad habitat in Pinghe County, and then gradually spread to nine districts and one district in the city. By 1989, it had planted 3,277.4 hectares and planted 8,668,200 plants. First, with a suitable natural environment