| 2003年干旱对1～3年生杉木林生长的影响 |
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| 引用本文： | 林有乐.2003年干旱对1～3年生杉木林生长的影响[J].福建林业科技,2004,31(3):31-34,49. |
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| 作者姓名： | 林有乐 |
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| 作者单位： | 福建省洋口国有林场,福建,顺昌,353211 |
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| 摘 要： | 通过2003年干旱对1～3年生杉木幼林生长影响的研究,结果表明,2003年的杉木造林成活率、1～3年生杉木地径和树高当年生长量显著低于降水量正常的年份(2000～2002年)。干旱期间1年生杉木林平均造林成活率为81 5%,下降11 5%,平均地径当年生长量为0 70cm,下降54 3%,平均树高当年生长量为0 53m,下降36 4%;2年生杉木林地径和树高当年生长量分别下降38 8%和34 2%,3年生杉木林地径和树高当年生长量分别下降36 0%和43 1%。
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| 关 键 词： | 杉木 幼林 干旱 生长 |
| 文章编号： | 1002-7351(2004)03-0031-04 |
Effects of the 2003 Drought on the Growth of 1-to 3-Year-Old Chinese Fir(Cunninghamia Lanceolata) Plantation |
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| LIN You-le.Effects of the 2003 Drought on the Growth of 1-to 3-Year-Old Chinese Fir(Cunninghamia Lanceolata) Plantation[J].Journal of Fujian Forestry Science and Technology,2004,31(3):31-34,49. |
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| Authors: | LIN You-le |
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| Abstract: | The effects of drought in 2003 on the growth of 1-to 3-year-old Chinese fir (Cunninghamia lanceolata) were investigated.The results showed that survival rate of 1-year-old Chinese fir plantation,current annual increment of ground diameter and tree height of 1-to 3-year-old Chinese fir plantations in 2003 were significantly lower than those in the year 2000-2002 with normal precipitation.During the drought,average survival rate of the 1-year-old Chinese fir plantations was 81.5%,decreased by 11.5%,current annual increment of ground diameter was 0.70 cm,decreased by 54.3%,and current annual increment of tree height was 0.53 m,decreased by 36.4%.Current annual increment of ground diameter and tree height of the 2-year-old Chinese fir plantations decreased by 38.8% and 34.2%,respectively,and by 36.0% and 43.1%,respectively,for the 3-year-old plantations. |
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| Keywords: | Cunninghamia lanceolata young plantation drought growth |
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