马占相思的生态生物学特征  

The Ecological and Biological Characteristics of Acacia mangium

作　　者：任海[1] 彭少麟[1] 余作岳[1] 

机构地区：[1]中国科学院华南植物研究所,广州510650

出　　处：《生态学杂志》1996年第4期1-5,共5页Chinese Journal of Ecology

基　　金：中国科学院重中之重06项目;国家自然科学基金

摘　　要：马占相思(Acacia mangium)是含羞草科相思属速生乔木树种,又名黑荆树、山核桃荆等,原产澳大利亚等地,1979年由中国林业科学院林业研究所引种室引入我国。由于其速生耐瘠。用途广泛,不久即被广泛用于集约经营短轮伐期工业用材林、四旁绿化和水源涵养林,成为我国热带和南亚热带地区的主要造林树种之一。由于其为新引进的造林树种,因而有关的研究还不多,仅有一些形态学、引种学和生产量方面的报道。本文报道中国科学院鹤山丘陵综合试验站十余年来对马占相思的定位研究结果,以期为今后种植和管理马占相思人工林提供依据。The biological and physiological characteristics, community structure and dynamic , biomaas and productivity, nutrient cycling of Acacia mangium were studied over 10 years at Heshan Station, Guangdong, China. The results showed that Acacia mangium was a quickly and widely adaptive species, and could be planted in tropical and lower-subtropical zone. Because of high photosynthesis rate and rational vertical structure, the productivity of Acacia mangium forest was high. The biomaas of the forest increased annually, but the annual growth of biomass and nodule biomass decreascd annually from the fourth year. This indicatad that N limited the growth of biomass. The nodule biomass and the amount of litterfall and nitrogen fixation of Acacia mangium forest were high. Quick cycling of the nutrient demts (especially N) in the forests proteced the soil and increaved the frtility in the soil.

关 键 词：植物生态学 马占相思 生态生物学特征 

分 类 号：Q949.751.9[生物学—植物学]