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| 4个杉木品系在广东省天井山林场的生长比较 |
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彭华贵,李兆佳,周志平,周光益,曾庆团,孔祥南
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广东省天井山林场,中国林业科学研究院热带林业研究所,广东省天井山林场,中国林业科学研究院热带林业研究所,广东省天井山林场,广东省天井山林场
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| 摘要: |
| 文章测量了杉木（Cunninghamia lanceolata）4 个品系树高、地径、冠幅、高径比和最大净光
合作用速率，比较了不同品系苗木在造林 2 a 后的存活与生长表现。结果表明，GLS-1 和 YL-061 的保存
率较高，依次为 GLS-4 和 YL-020；杉木苗品系之间的生长表现、光合能力与保存率均表现出相同的趋
势，为 GLS-1 苗木生长最好，YL-061 次之，YL-020 和 GLS-4 生长相近且低于前两个品系；各品系之间
的高径比没有显著差异。造林 2 a 的初步结果表明，GLS-1 和 YL-061 可以作为附近区域杉木人工林造林
的候选品种。 |
| 关键词: 杉木 造林试验 生长 光合 |
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| The Comparison of Growth Performance of Four Provenances Cunninghamia lanceolata in Guangdong Tianjingshan Forest Farm |
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penghuagui,lizhaojia,zhouzhiping,zhouguangyi,zengqingtuan and kongxiangnan
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Guangdong Tianjingshan Forest Farm,Key Laboratory of State Forestry Administration on Tropical Forestry Research,,Guangdong Tianjingshan Forest Farm,Key Laboratory of State Forestry Administration o,Guangdong Tianjingshan Forest Farm,Guangdong Tianjingshan Forest Farm
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| Abstract: |
| The survival rate and growth performance of seedlings of different provenances of Cunninghamia
lanceolata were compared after afforestation for two years. And the seedling height, ground diameter, crown
dimeter, height-dimeter ratio, and maximum net photosynthetic rate of four provenances of C. lanceolata were
measured. The results showed that the survival rate of GLS-1 and YL-061 were higher, followed by GLS-4 and
YL-020. The provenances of C. lanceolate showed the same trend in growth performance, photosynthesis ability
and survival rate. The growth of GLS-1 seedlings was the best, YL-061 followed, YL-020 and GLS-4 were similar
and lower than the first two provenances. There was no significant difference in the height-dimeter ratio of the
performances. The preliminary results of two years afforestation showed that GLS-1 and YL-061 could be served
as the candidate provenances for C. lanceolata afforestation in the surrounding areas. |
| Key words: Cunninghamia lanceolata afforestation experiment growth photosynthesis |
