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在海南岛东部进行的桉树１１个树种７９个种源试验，５年的结果表明，不同树种种源间生长差异极显著，来自印度尼西亚Ｍｔ．ｍａｎｄｉｒｉ的尾叶桉１２８９５种源是所有参试树种／种源中表现最好的，树高、胸径和每公顷材积分别为１３．８２ｍ、１２．５４ｃｍ和１２８．３４ｍ３。同一树种种源间生长差异也极显著，最佳种源的每公顷材积与最差种源相比，尾叶桉为８．４６：１，细叶桉５．８６：１，赤桉５．３２：１和巨桉３．０４：１。细叶桉、赤桉和巨桉种源树高、胸径和材积生长与原产地纬度显著负相关，尾叶桉种源与原产地海拔高极显著负相关。本文提出了适合海南岛东部地区生长的树种和种源。
79 provenances of 11 species of eucalyptus were conducted in the eastern part of Hainan Island. The results of 5 years showed that the differences in growth among different provenances were significant and originated from Mt. Indonesia. Eucalyptus urophylla 12895 provenances of mandiri were the best performers in all tested tree species / provenances. The tree height, DBH and hectare were 13.82m, 12.54cm and 128.34m3, respectively. The difference in growth among the provenances of the same species was also significant. The yield per hectare for the best provenances was 8.46: 1 for Eucalyptus urophylla, 5.86: 1 for Eucalyptus urophylla, and 5 for Eucalyptus grandis. 32: 1 and giant eucalyptus 3.04: 1. Eucalyptus urophylla, Eucalyptus grandis and E. grandis provenance tree height, DBH and volume growth were significantly negatively correlated with latitude of origin, Eucalyptus urophylla and provenance were significantly negatively correlated with altitude. This paper presents the tree species and provenances suitable for the growth of the eastern part of Hainan Island.