The growth traits of 4-year-old provenance trial forests of Toona sinensis were investigated. The results showed that:the differences in growth adaptability of 29 provenances was extremely signiifcant, and the average height in the range was between 1.66 m-5.15 m, the average diameter between 1.52-4.42 cm, the average individual volume between 0.000 38 m3-0.007 01 m3. Correlationon analysis showed that height, DBH, individual volume were negatively related to latitude, but were extremely signiifcant positive related to the average annual rainfall, the average annual temperature and the frost-free period, which showed that provenances of lower latitude, more rainfall, higher temperatures and longer frost-free period had a better adaptability in Shaowu city. 29 provenances were divided into excellent, good, normal, poor four categories by clustering analysis. The excellent and good categories were analyzed and found that the provenances in the area of Hunan Province, Jiangxi Province and northern Midwest Guangxi Province had obvious growth advantage and showed strong adaptability. The average height, the average diameter and the average individual volume of the eight provenances in this area where could be the better provenance zone was 2.73 m, 3.68 cm, 0.003 58 m3.%采用完全随机区组设计，在福建邵武进行来自14个省区29个种源香椿的造林试验，通过对4年生香椿种源试验林生长性状的调查，开展香椿种源生长差异性分析及早期评价，研究结果表明：参试的29个香椿种源在生长适应性上存在着极为显著的差异，平均树高在1.66～5.15 m之间，平均胸径在1.52～4.42 cm之间，平均单株材积在0.00038～0.00701 m3之间；树高、胸径和单株材积均与纬度呈显著负相关，而与年均降水量、年均气温和无霜期表现出极显著的正相关，说明纬度较低、降水量较多、气温较高和无霜期较长的种源在福建邵武生长适应性较好；通过聚类分析，29个香椿种源可分成了优、良、中、差4个类别；湖南、江西中西部和广西北部的种源有较明显的生长优势，表现出较强的适应性，该地域内8个种源的树高均值为2.73 m，胸径均值为3.68 cm，单株材积均值为0.00358 m3，这一区域可能是香椿的较优种源区。
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