【摘要】 厚荚相思于１９８５年从澳大利亚引种，８年引种及种源试验表明厚荚相思生长迅速，在广东湛江市８年生高达１２ｍ，胸径１２．８ｃｍ，超过大叶相思和马占相思。主干较通直，适应热带砖红壤和沿海沙土生长，能耐盐风和茅草竞争，未发现严重病虫害。由于它为浅根性树种，故抗风力较弱。种源试验还表明，产自巴布亚新几内亚的种源较澳大利亚昆士兰州种源生长快且干形较通直。现已利用巴布亚产优良种源营造母树林，３ａ可开花结实。更多还原

【Abstract】 Acacia crassicarpa was introduced in 1985 to South China.8-year species trialof A.crassicarpa shows that it is a fast-growing tropical legume tree without serious insectand pest damage.It is a suitable tree species for pulp and timber plantation.It could beplanted in the vast tropical and southern subtropical regions in China where the mean annualtemperature ranges 21～24℃,mean annual rainfall 1 000～2 000 mm without frost.Themost suitable sites may be low hills,mountains and the coast sandy soils where typhoon dam-age is not serious.The most suitable seed sources of A.crassicarpa come from the low eleva-tions of PNG.The MAI of height is 1.2～1.9 m and MAI of DBH is 1.7～2.9cm. It startsflowering and bearing fruit at age 4～5year.1 000 wt.of seeds is 22 g.A.crassicarpa is atree with shallow root system whose root system concentrates on the upper 10～45 cm layerof the top soil.It is not wind resistant.The fresh leaves of A.crassicarpa contain 2.168%N,0.094%P,0.146%K,0,424%Ca,0.172%Mg.It can enrich soil because it is a nitrogen fixing species.更多还原