摘要
采用标准地调查、树干解析等方法对安溪白濑国有林场10年生的马褂木纯林及马褂木、杉木混交林(9杉1马、8杉2马、7杉3马)的树高、胸径、蓄积量等进行对比分析,结果表明:4种林分的树高、胸径、蓄积量间有显著或极显著差异;在相似的郁闭度下,林分蓄积量大小排序为7杉3马>8杉2马>9杉1马>马褂木纯林;不同混交比例对土壤肥力有较大影响,随着林分中马褂木树种数量增加,林地土壤的有机质含量、全N、水溶性N、速效P等土壤肥力指标显著提高。综合分析结果表明,7杉3马为杉木、马褂木混交的最佳比例。
The tree height, dbh, stocking of 10-years-old pure Liriodendron Chinese, and the mixed forests（ 10% of Liriodendron Chinese and 90% of Cunninghamia lanceolata, 20% of L. Chinese and 80% of C. lanceolata,30% of L. Chinese and 70% of C. lanceolata ）in Anxi Bailai National Forest Farm were compared and analysed by sample plot investigation and stem analysis methods. The results showed that： the differences of tree heights, dbh, stockings of above 4 stands were evident or extremely evident; When the shade densities were similar, the stand stockings were： 30% of L. Chinese and 70% of C. lanceolata 〉20% of L. Chinese and 80 % of C. lanceolata 〉 10 % of L. Chinese and 90 % of C. lanceolata 〉 pure L. Chinese, different mixed proportions had big effect on the soil fertility. With increase of species number of L. Chinese of stands, the soil fertility indexes of organic matter content, whole N, water soluble N, rapid available P of forest soil increased evidently. Colligated analysis results showed 30% of L. Chinese and 70% of C. lanceolata was the best mix proportion.
出处
《福建林业科技》
2009年第1期82-86,共5页
Journal of Fujian Forestry Science and Technology
关键词
马褂木
杉木
混交比例
混交效果
Liriodendron Chinese
Cunninghamia lanceolata
mix proportion
mix effect
