| 杉木采伐迹地鹅掌楸和杉木生长特性的研究 |
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| 引用本文： | 谭触灵,何斌,刘莉.杉木采伐迹地鹅掌楸和杉木生长特性的研究[J].安徽农业科学,2010,38(36). |
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| 作者姓名： | 谭触灵 何斌 刘莉 |
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| 作者单位： | 1. 广西融水苗族自治县林业局,广西融水,545300
2. 广西大学林学院,广西南宁,530004 |
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| 基金项目： | 广西"十一五"林业科技项目 |
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| 摘 要： | 目的]揭示引种鹅掌楸和杉木人工林在广西自治区融水县的生长特性,为杉木连栽迹地造林树种的选择提供科学依据。方法]对广西自治区融水苗族自治县杉木采伐迹地的鹅掌楸和杉木人工林的生长特性进行了5年的定位监测,并进行了比较研究。结果]在相似立地条件下,1～5年生鹅掌楸人工林的平均树高、平均胸径和平均蓄积量均明显高于杉木人工林,其中,5年生杉木人工林年均胸径生长量为1.43 cm,年均树高生长量为1.23 m,年平均蓄积量为17.02 m3/hm2,而5年生鹅掌楸人工林的上述3个数据分别为2.19 cm、1.78 m和31.80 m3/hm2,是杉木人工林的1.53、1.45和1.87倍。结论]鹅掌楸是一种早期速生树种,其生长速度比杉木快,成材比杉木早,可以作为杉木的替代轮作树种进行推广。
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| 关 键 词： | 鹅掌楸 杉木 采伐迹地 生长特性 |
Study on Growth Characteristics of Liriodendron chinese and Cunninghamia lanceolata Plantation in Cutover Forestland of C.Lanceolata |
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| Institution: | TAN Chu-ling et al (Forestry Bureau of Rongshui in County Guangxi Municipality; Rongshui; Guangxi 545300); |
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| Abstract: | Objective] The propose was to open out the growth characteristics of introduced Liriodendron chinese and Cunninghamia lanceolata plantation in Rongshui County in Guangxi Municipality so as to provided the scientific basis for the breeding of forestation tree species in the continuously planting forestland of C.Lanceolata.Method] The fixed site monitoring survey for 5 years were conducted on the growth characteristics of Liriodendron chinese and Cunninghamia lanceolata plantation in the cutover forestland in Rongshui County of Guangxi Municipality and their comparison were studied.Result] Under the similar site condition,the average tree height,average diameter at breast height(DBH) and average volume of L.Chinese plantation were all significantly higher than those of C.Lanceolata plantation in 1～5 years.In which,the average annual growth of DBH of 5-year-old C.Lanceolata plantation was 1.43 cm,its average annual growth of tree height was 1.23 m and the average annual volume was 17.02 m3/hm2,while the above 3 data for 5-year-old L.Chinese plantation were 2.19 cm,1.78 m and 31.80 m3/hm2,being 1.53,1.45 and 1.87 times of C.Lanceolata plantation.Conclusion] L.Chinese is an early fast-growing tree species,its growth rate was faster and its lumber was earlier than C.Lanceolata,so it can be spread as the substituted rotation tree species of C.Lanceolata. |
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| Keywords: | Liriodendron chinese Cunninghamia lanceolata Cutover forestland Growth characteristics |
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