TREE SPECIES RICHNESS OF UPPER AMAZONIAN FORESTS
TREE SPECIES RICHNESS OF UPPER AMAZONIAN FORESTS
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DOI：
10.1073/pnas.85.1.156
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发表时间：
1988-01-01
影响因子：
11.1
通讯作者：
GENTRY, AH
中科院分区：
文献类型：
--
作者：
GENTRY, AH
报告了亚马逊河上游1公顷地块树种丰富度的数据。所有植物.gtoreq.在亚马逊河流域秘鲁的六块土地和委内瑞拉-巴西边境的一块土地上进行了直径10厘米的普查和鉴定。这两块来自秘鲁伊基托斯附近常湿森林的地块是世界上物种最丰富的，有.apprxeq。300种。每公顷直径10厘米；秘鲁所有的地块都是有史以来物种最丰富的地块之一。与公认的观点相反，亚马逊河上游的森林，也许还有中非的森林，拥有与可比的亚洲森林一样多或更多的树种。在三大洲肥沃到中等贫瘠的土壤上，非常高的树种丰富度似乎是成熟的低地常绿森林的普遍特征。
Upper Amazonian data for tree species richness in 1-hectare plots are reported. All plants .gtoreq. 10 cm diameter were censused and identified in six plots in Amazonian Peru and one on the Venezuela-Brazil border. The two plots from the everwet forests near Iquitos, Peru, are the most species-rich in the world, with .apprxeq. 300 species .gtoreq. 10 cm diameter in single hectares; all of the Peruvian plots are among the most species-rich ever reported. Contrary to accepted opinion, upper Amazonian forest, and perhaps Central African ones, have as many or more tree species as comparable Asian forests. Very high tree species richness seems to be a general property of mature lowland evergreen forests on fertile to moderately infertile soils on all three continents.