摘要: |
在广东省潮州市饶平县3种林分类型中进行8种树种的造林试验,结果表明:种植后20个月,马占相思、南酸枣、桃花心木和红椿生长快、长势好,地径年平均生长量分别为3.17,3.03,2.34,2.02 cm;树高年平均生长量分别为136.1,122.9,91.3,87.6 cm;冠幅年平均生长量分别为59.5,95.9,49.8,57.1 cm。重阳木、枫香和樟树生长中等, 地径年平均生长量分别为1.58,1.61,1.33 cm, 树高年平均生长量分别为67.7,57.1,49.3 cm, 冠幅年平均生长量分别为19.6,20.2,49.3 cm。乐昌含笑生长较慢,地径年平均生长量仅为1.05 cm,树高年平均生长量为30.4 cm,冠幅年平均生长量为11.9 cm,不适合作为改造树种在粤东地区种植。 |
关键词: 林分改造 改造树种 生长情况 饶平县 |
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基金项目:广东省林业科技创新项目(2009KJCX011-02) |
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A Preliminary Report on Tree Selection of Forest Transformation in Raoping |
wangjunping,,, and chenhongyue
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College of Forstry, South China Agricultural University
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Abstract: |
Afforestation tests including eight tree species were carried out in three types of stands in Raoping, Chaozhou. The results showed that Acacia mangium, Choerospondias axillaris, Swietenia mahagoni and Toona ciliate grew fast and well, with average annual ground diameter growth (GDG) of 3.17, 3.03, 2.34, 2.02 cm, height growth (HG) of 136.1, 122.9, 91.3, 87.6 cm, and crown width growth (CWG) of 59.5, 95.9, 49.8, 57.1 cm, respectively. Bischofia polycarpa, Liquidambar formosana and Cinnamomum camphora exhibited medium growth rate, with average annual GDG of 1.58, 1.61, 1.33 cm, HG of 67.7, 57.1, 49.3 cm, and CDG of 19.6, 20.2, 49.3 cm, respectively. Michelia chapensis grew relatively slowly, with average annual GDG of 1.05 cm, HG of 30.4 cm, and CDG of 11.9 cm, which was not suitable for forest transformation in East Guangdong. |
Key words: stand transformation transformed tree species growth Raoping |