| 摘要: |
| 对东莞莲花山自然保护区退化马尾松林林分2002年种植的17个3年生阔叶树种的树高、胸径以及冠幅进行测量和分析。结果表明，各个树种之间树高、胸径和冠幅生长均存在极显著差异（P＜0.01）。除红荷、桃花心木、仪花、格木和马占相思以外，其余12个树种树高与胸径生长表现出显著正相关（P＜0.05）。综合树高、胸径和冠幅3个指标对17个阔叶树种的生长数据进行聚类分析，桃花心木、火力楠、铁冬青、尖叶杜英和仪花生长较慢；枫香、格木、红锥、米老排、樟树、木荷、木棉和南洋楹生长速度中等；红荷和黧蒴生长较快；千年桐和马占相思生长迅速。总体而言，试验的17个阔叶树种对退化马尾松林的景观恢复取得一定成效。 |
| 关键词: 东莞莲花山 马尾松林 阔叶树种 早期生长 |
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| Early growth performance of 17 broadleaved tree species in degraded Pinus massoniana forest |
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Liu Songsong
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| Abstract: |
| Height, diameter at breast height(DBH) and canopy width(CW) of 17 broadleaved tree species in degraded Pinus massoniana forest from Lianhua mountain Nature Reserve of Dongguan city, were measured and analyzed. The results showed that height, DBH and CW was highly significant(P＜0.01) between the 17 broadleaved tree species, which planted in 2002. Apart from Schima wallichii, Swietenia mahagoni, Lysidice rhodostegia, Erythrophleum fordii and Acacia mangium, height growth was significantly correlated with DBH(P＜0.05) for the rest of the 12 tree species. According to the measured data of height, DBH and CW, 17 tree species can be classified into 4 types by using cluster analysis. The first type consisits of Swietenia mahagoni, Michelia macclurei, Ilex rotunda, Elaeocarpus apiculatus and Lysidice rhodostegia were slow-growing. The second includes Liquidambar formosana, Erythrophleum fordii, Castanopsis hystrix, Mytilaria laosensis, Cinnamomum camphora, Schima superba, Bombax malabaricum and Albizia falcataria were medium growing. The third type is Schima wallichii and Castanopsis fissa, which grew fast relatively. The last but the fast is Vernicia Montana and Acacia mangium. As a whole, based on 3 years forest rebuilding, 17 experimental broadleaved tree species played an important role in the restoration of landscape to the degraded Pinus massoniana forest. |
| Key words: Lianhua mountain of Dongguan Pinus massoniana forest broadleaved tree species early growth |
