浙江天童枫香树群落不同垂直层次物种间的联结性与相关性

doi:10.17521/cjpe.2015.0110

摘要/Abstract

摘要：

种间关系是植物群落重要的数量和结构特征之一, 分析群落不同垂直层次物种的种间联结和相关性对于理解群落结构、动态和分类等具有重要的生态意义。该研究选取浙江省天童处于演替前期的枫香树(Liquidambar formosana)群落乔木层3个物种、亚乔木层3个物种以及灌木层28个物种为研究对象, 应用基于二元数据的方差比率法、χ²统计量检验和基于数量数据的Spearman秩相关系数检验研究了3个垂直层次间物种的联结性与相关性。结果发现: (1)乔木层与亚乔木层物种总体间存在不显著正联结, 乔木层与亚乔木层主要物种间相互独立的种对较多, 较少种对显著联结或相关; (2)乔木层与灌木层物种总体显著正联结, 显著关联或相关的种对较多, 种对间依赖性较强; (3)亚乔木层与灌木层物种总体同样存在显著正联结, 种对间关系较为紧密。该研究结果表明: 群落垂直层次间物种生态习性和对生境适应的趋同性, 以及在垂直方向上对生境要求的互补性差异是决定演替前期种对关系的主要因素。

关键词: 联结系数, 相关系数, 常绿阔叶林, 演替前期, 种间关系

Abstract:

Aims Interspecific relationship is one of the most important properties in plant communities. Analyzing species association and correlation between vertical layers in plant communities is ecologically crucial for understanding community structure, dynamics and classification. The objective of this study was to test how plant species in contrasting vertical layers of plant communities associate and correlate. Methods The study sites are located in Tiantong region in Zhejiang Province. Community structure and species composition were measured in an early successional community of Liquidambar formosana. Interspecific relationships were examined between 3 tree species and 3 sub-tree species, between 3 tree species and 28 shrub species, and between 3 sub-tree species and 28 shrub species. Interspecific relationships were analyzed by using χ²-test for 2 × 2 contingency table, variance ratio (VR) test and spearman rank correlation test.Important findings With respect to tree and sub-tree layers, positive significant association was not observed for overall species. Species were independent with each other for most species pairs. Few species pairs showed significant association or correlation. Regarding tree and shrub layers, there were significant positive associations between overall species. Species between tree and shrub layers were more dependent on each other, with the most species showing significant association or correlation. Similarly, positive significant association existed for overall species between sub-tree and shrub layers, displaying a close interspecific relationship. These results suggest that the convergences of species behavior and habitat acclimatization, and complementary differences in habitat requirement over species between vertical layers might be the main driver affecting patterns of species association and correlation in the early successional community.

Key words: association coefficient, correlation coefficient, evergreen broadleaved forest, early stage of succession, interspecific relationship

周刘丽, 张晴晴, 赵延涛, 许洺山, 程浚洋, 朱丹妮, 宋彦君, 黄海侠, 史青茹, 阎恩荣. 浙江天童枫香树群落不同垂直层次物种间的联结性与相关性. 植物生态学报, 2015, 39(12): 1136-1145. DOI: 10.17521/cjpe.2015.0110

ZHOU Liu-Li, ZHANG Qing-Qing, ZHAO Yan-Tao, XU Ming-Shan, CHENG Jun-Yang, ZHU Dan-Ni, SONG Yan-Jun, HUANG Hai-Xia, SHI Qing-Ru, YAN En-Rong. Species association and correlation between vertical layers in the Liquidambar formosana community in Tiantong region, Zhejiang Province. Chinese Journal of Plant Ecology, 2015, 39(12): 1136-1145. DOI: 10.17521/cjpe.2015.0110

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https://www.plant-ecology.com/CN/Y2015/V39/I12/1136

图/表 4

参考文献 56

[1]	Bertness MD, Hacker SD (1994). Physical stress and positive associations among marsh plants.The American Naturalist, 144, 363-372.
[2]	Bray JR (1956). A study of mutual occurrence of plant species.Ecology, 37, 21-28.
[3]	Bruno JF, Stachowicz JJ, Bertness MD (2003). Inclusion of facilitation into ecological theory.Trends in Ecology & Evolution, 18, 119-125.
[4]	Chai Y, Meng GT, Wu L, Qi RP, Li NY (2009). Interspecific associations of main tree species in the communities with Magnolia odoratissima.Journal of Northwest Forestry University, 24, 31-35.
	(in Chinese with English abstract) [柴勇, 孟广涛, 武力, 祁荣频, 李宁云 (2009). 馨香玉兰所在群落主要树种的种间联结性. 西北林学院学报, 24, 31-35.]
[5]	Cheng DL, Wang GX, Chen BM, Wei XP (2006). Positive interactions: Crucial organizers in a plant community.Journal of Integrative Plant Biology, 48, 128-136.
[6]	Connell JH (1983). On the prevalence and relative importance of interspecific competition: Evidence from field experiments.The American Naturalist, 122, 661-696.
[7]	Cox GW (1979). Laboratory Manual of General Ecology. Translated by Jiang YX. Science Press, Beijing.(in Chinese)
	[Cox GW (1979). 普通生态学实验手册. 蒋有绪译. 科学出版社, 北京.]
[8]	Debski I, Burslem DFRP, Palmiotto PA, Lafrankie JV, Lee HS, Manokaran N (2002). Habitat preferences of aporosa in two malaysian forests: Implications for abundance and coexistence.Ecology, 83, 2005-2018.
[9]	Ding SY (1999). Comparative Ecology of Successive Seral of Evergreen Broad-Leaved Forest. Henan University Press, Kaifeng.
	(in Chinese) [丁圣彦 (1999). 常绿阔叶林演替系列比较生态学. 河南大学出版社, 开封.]
[10]	Ding SY, Song YC (1999). Study on the synecological characteristics of the early successional stage of an evergreen broadleaved forest on Tiantong National Forest Park, Zhejiang Province.Acta Phytoecologica Sinica, 23, 97-107.
	(in Chinese with English abstract) [丁圣彦, 宋永昌 (1999). 浙江天童国家森林公园常绿阔叶林演替前期的群落生态学特征. 植物生态学报, 23, 97-107.]
[11]	Du DL, Liu YC, Li R (1995). Studies on the interspecific association of dominant species in a subtropical Catanopsis fargesii forest of Jinyun Mountain, China.Acta Phytoecologica Sinica, 19, 149-157.(in Chinese with English abstract)
	[杜道林, 刘玉成, 李睿 (1995). 缙云山亚热带栲林优势种群间联结性研究. 植物生态学报,19, 149-157.]
[12]	Forbes SA (1907). On the local distribution of certain Illinois fishes: An essay in statistical ecology.Illinois State Laboratory of Natural History, 7, 237-303.
[13]	Greig-Smith P (1957). Quantitative Plant Ecology. Butterworths, London.
[14]	Grime JP (1979). Plant Strategies and Vegetation Processes. John Wiley & Sons, New York.
[15]	Hale ME (1955). Phytosociology of corticolous crytogams in the upland forests of southern Wisconsin.Ecology, 36, 45-63.
[16]	Hurlbert SH (1969). A coefficient of interspecific assciation.Ecology, 50, 1-9.
[17]	Jian MF, Liu QJ, Zhu D, You H (2009). Inter-specific correla- tions among dominant populations of tree layer species in evergreen broad-leaved forest in Jiulianshan Mountain of subtropical China.Chinese Journal of Plant Ecology, 33, 672-680.
	(in Chinese with English abstract) [简敏菲, 刘琪景, 朱笃, 游海 (2009). 九连山常绿阔叶林乔木优势种群的种间关联性分析. 植物生态学报,33, 672-680.]
[18]	Kang B, Liu SR, Wen YG, Zhang YJ, Jiang ZM, Chang JG (2006). Population dynamics during succession of secondary natural forest in Daqingshan, Guangxi, China. Journal of Plant Ecology (Chinese Version), 30, 931-940.
	(in Chinese with English abstract) [康冰, 刘世荣, 温远光, 张跃进, 姜在民, 常建国 (2006). 广西大青山南亚热带次生林演替过程的种群动态 .植物生态学报,30, 931-940.]
[19]	Kershaw KA (1960). The detection of pattern and association.Journal of Ecology, 48, 233-242.
[20]	Legendre L, Legendre P (1983). Numerical Ecology. Elsevier Scientific Publishing Company, Amsterdam. 205-207.
[21]	Li YD, Xu H, Chen DX, Luo TS, Mo JH, Luo W, Chen HQ, Jiang ZL (2008). Division of ecological species groups and functional groups based on interspecific association—A case study of the tree layer in the tropical lowland rainforest of Jianfenling in Hainan Island, China.Frontiers of Forestry in China, 3, 407-415.
[22]	Liu JF, Hong W, Fan HB, Lin RF (2001). Study on the inter- specific association of species in the vegetation laver in Castanopsis kawakamii forest.Scientia Silvae Sinicae, 37, 117-123.(in Chinese with English abstract)
	[刘金福, 洪伟, 樊后保, 林荣福 (2001). 天然格氏栲林乔木层种群种间关联性研究. 林业科学, 37, 117-123.]
[23]	Long CL (2006). Height niche of main tree species in gaps in karst forest in Maolan Nature Reserve. Journal of Guizhou Normal University (Natural Sciences), 24, 36-39.(in Chinese with English abstract)
	[龙翠玲 (2006). 茂兰喀斯特森林林隙主要树种的高度生态位. 贵州师范大学学报(自然科学版),24, 36-39.]
[24]	Long CL (2008). Effects of gap size on regeneration of Karst forest in Maolan Natural Reserve of Guizhou Province. Journal of Nanjing Forestry University (Natural Science Edition), 32, 34-38.
	(in Chinese with English abstract) [龙翠玲 (2008). 茂兰喀斯特森林林隙大小对树种更新的影响. 南京林业大学学报(自然科学版),32, 34-38.]
[25]	Mueller-Dombois D, Ellenberg H (1986). Aims and Methods of Vegetation Ecology. Translated by Bao XC, Zhang S, Yang BS, Jin ZZ, Tang TG, Yao BJ, Jiang HQ . Science Press, Beijing.(in Chinese)
	[Mueller-Dombois D, Ellenberg H (1986). 植被生态学目的和方法. 鲍显诚, 张绅, 杨邦顺, 金正洲, 唐廷贵, 姚璧君, 姜汉侨译.科学出版社, 北京.]
[26]	Odum EP (1983). Basic Ecology. Saunders College Publishing, Philadelphia.
[27]	Ouyang XZ, Ding S (2014). Investigation on species diversity and distribution pattern of main evergreen broad-leaved forest in Jinggang Mountain National Natural Reserve.Practical Forestry Technology, 9, 16-20.(in Chinese with English abstract)
	[欧阳勋志, 丁松 (2014). 井冈山国家自然保护区主要常绿阔叶林物种多样性及分布格局. 林业实用技术,9, 16-20.]
[28]	Queenborough SA, Burslem DFRP, Garwood NC, Valencia R (2007). Habitat niche partitioning by 16 species of Myristicaceae in Amazonian Ecuador.Plant Ecology, 192, 193-207.
[29]	Rao MR, Nair PKR, Ong CK (1997). Biophysical interactions in tropical agroforestry systems.Agroforestry Systems, 38, 3-50.
[30]	Rosenthal G (2003). Selecting target species to evaluate the success of wet grassland restoration.Agriculture, Ecosystems & Environment, 98, 227-246.
[31]	Schluter D (1984). A variance test for detecting species associations, with some example applications.Ecology, 65, 998-1005.
[32]	Schoener TW (1983). Field experiments on interspecific competition.The American Naturalist, 122, 240-285.
[33]	Song YC (2001). Vegetation Ecology. East China Normal University Press, Shanghai.
	(in Chinese) [宋永昌 (2001). 植被生态学. 华东师范大学出版社, 上海.]
[34]	Su SJ, Liu JF, He ZS, Zheng SQ, Hong W, Xu DW (2015). Ecological species groups and interspecific association of dominant tree species in Daiyun Mountain National Nature Reserve.Journal of Mountain Science, 12, 637-646.
[35]	Suzuki RO, Numata S, Okuda T, Supardi MNN, Kassim AR, Kachi N (2012). Species associations among dipterocarp species co-occurring in a Malaysian tropical rain forest.Journal of Tropical Ecology, 28, 281-289.
[36]	Suzuki RO, Numata S, Okuda T, Supardi MNN, Kachi N (2009). Growth strategies differentiate the spatial patterns of 11 dipterocarp species coexisting in a Malaysian tropical rain forest.Journal of Plant Research, 122, 81-93.
[37]	Thevathasan NV, Gordon AM (2004). Ecology of tree intercropping systems in the North temperate region: Experiences from southern Ontario, Canada.Agroforestry Systems, 61, 257-268.
[38]	Tilman D (1988). Plant Strategies and the Dynamics and Structure of Plant Communities. Princeton University Press, Princeton, USA.
[39]	Wang L, Zhang JT (2004). Interspecific association and cor- relation of dominant species of Lishan Mountain meadow in Shanxi Province.Acta Botanica Boreali-Occidentalia Sinica, 24, 1435-1440.
	(in Chinese with English abstract) [王琳, 张金屯 (2004). 历山山地草甸优势种的种间关联和相关分析. 西北植物学报,24, 1435-1440.]
[40]	Wang NJ, Zhang WH, Lu YC, Fan SH, Wang Y (2010). Inter- specific association among the plants communities in the forest at Ziwuling area in Shanxi Province.Acta Ecologica Sinica, 30, 67-78.
	(in Chinese with English abstract) [王乃江, 张文辉, 陆元昌, 范少辉, 王勇 (2010). 陕西子午岭森林植物群落种间联结性. 生态学报,30, 67-78.]
[41]	Wang XG, Wiegand T, Hao ZQ, Li BH, Ye J, Lin F (2010). Species associations in an old-growth temperate forest in north-eastern China.Journal of Ecology, 98, 674-686.
[42]	Wang ZG, Zhang ZX, Duan RY, Wu GL, Shen SB (2010). Interspecific association of understory species in Duozhijian, Dabieshan Mountain, Anhui Province.Ecology and Environment, 19, 2066-2071.
	(in Chinese with English abstract) [王志高, 张中信, 段仁燕, 吴甘霖, 沈三保 (2010). 大别山多枝尖山区林下植物种间联结性研究. 生态环境学报, 19, 2066-2071.]
[43]	Yan ER, Wang XH, Guo M, Zhong Q, Zhou W (2010). C:N:P stoichiometry across evergreen broad-leaved forests, evergreen coniferous forests and deciduous broad-leaved forests in the Tiantong region, Zhejiang Province, eastern China.Chinese Journal of Plant Ecology, 34, 48-57.
	(in Chinese with English abstract) [阎恩荣, 王希华, 郭明, 仲强, 周武 (2010). 浙江天童常绿阔叶林、常绿针叶林与落叶阔叶林的C:N:P化学计量特征. 植物生态学报, 34, 48-57.]
[44]	Yan ER, Wang XH, Zhou W (2008). N:P stoichiometry in sec- ondary succession in evergreen broad-leaved forest, Tian- tong, East China. Journal of Plant Ecology (Chinese Ver- sion), 32, 13-22.
	(in Chinese with English abstract) [阎恩荣, 王希华, 周武 (2008). 天童常绿阔叶林演替系列植物群落的N:P化学计量特征. 植物生态学报, 32, 13-22.]
[45]	Yang XD, Yan ER, Zhang ZH, Sun BW, Huang HX, Ali A, Ma WJ, Shi QR (2013). Tree architecture of overlapping species among successional stages in evergreen broad-leaved forests in Tiantong region, Zhejiang Province, China.Chinese Journal of Plant Ecology, 37, 611-619.
	(in Chinese with English abstract) [杨晓东, 阎恩荣, 张志浩, 孙宝伟, 黄海侠, Ali A, 马文济, 史青茹 (2013). 浙江天童常绿阔叶林演替阶段共有种的树木构型. 植物生态学报, 37, 611-619.]
[46]	Yang ZJ, Zhang QD, Li H, Bai YH, Bi RC (2013). Inter- specific correlations among dominant populations of woody Syringa reticulata Communities in Wulu Mountain Nature Reserve, Shanxi Province of China.Plant Science Journal, 31, 42-48.
	(in Chinese with English abstract) [杨兆静, 张钦弟, 李豪, 白玉宏, 毕润成 (2013). 山西五鹿山自然保护区暴马丁香群落木本植物种间联结性分析. 植物科学学报,31, 42-48.]
[47]	Zhang F, Shangguan TL (2000). Numerical analysis of interspecific relationships in an Elaeagnus mollis community in Shanxi.Acta Phytoecologica Sinica, 24, 351-355.
	(in Chinese with English abstract) [张峰, 上官铁梁 (2000). 山西翅果油树群落种间关系的数量分析. 植物生态学报,24, 351-355.]
[48]	Zhang JT (1997). Review on species abundance patterns in communities.Rural Eco-Environment, 13, 48-54.
	(in Chinese with English abstract) [张金屯 (1997). 群落中物种多度格局的研究综述. 农村生态环境,13, 48-54.]
[49]	Zhang JT (2004). Numerical Ecology. Science Press, Beijing.
	(in Chinese) [张金屯 (2004). 数量生态学. 科学出版社, 北京.]
[50]	Zhang JT, Jiao R (2003). Interspecific association between woody plants in Shenweigou of Guandi Mountains, Shanxi Province.Bulletin of Botanical Research, 23, 458-463.
	(in Chinese with English abstract) [张金屯, 焦蓉 (2003). 关帝山神尾沟森林群落木本植物种间联结性与相关性研究. 植物研究,23, 458-463.]
[51]	Zhang XP, Wang MB, Zhang WF, Xiao Y (2007). Interspecific relationships among woody plants of forest communities in Pangquangou National Nature Reserve at Mt. Guandi, Shanxi, China.Bulletin of Botanical Research, 27, 350-355.
	(in Chinese with English abstract) [张先平, 王孟本, 张伟锋, 肖扬 (2007). 庞泉沟国家自然保护区森林群落木本植物种间关系的分析. 植物研究,27, 350-355.]
[52]	Zhang Y, Guo LP, Yi XM, Cao W, Wang YX, Wu PL, Ji LZ (2015). Analysis of interspecific associations among major tree species in three forest communities on the north slope of Changbai Mountain.Acta Ecologica Sinica, 35, 106-115.
	(in Chinese with English abstract) [张悦, 郭利平, 易雪梅, 曹伟, 王远遐, 吴培莉, 姬兰柱 (2015). 长白山北坡3个森林群落主要树种种间联结性. 生态学报,35, 106-115.]
[53]	Zhang ZH, Hu G (2011). Interspecific relationships of dominant species in Cyclobalanopsis glauca community in karst mountain area.Ecology and Environmental Sciences, 20, 1209-1213.
	(in Chinese with English abstract) [张忠华, 胡刚 (2011). 喀斯特山地青冈栎群落优势种的种间关系分析. 生态环境学报,20, 1209-1213.]
[54]	Zheng CC (2014). Community Characteristics, Interspecific Relationship and Influencing Factors of the Ecological Public Welfare Forest in Jiangshan City. Master degree dissertation, Zhejiang University of Agriculture and Forestry, Lin’an.
	(in Chinese with English abstract) [郑超超 (2014). 江山市公益林群落结构特征、种间关系及其影响因素研究. 硕士学位论文, 浙江农林大学, 临安.]
[55]	Zheng ZY, Long CL (2014). Interspecific association of woody plant species at different topography sites in Maolan Karst Forest.Forest Resources Management, 4, 78-84.
	(in Chinese with English abstract) [郑振宇, 龙翠玲 (2014). 茂兰喀斯特森林不同地形部位木本植物种间联结性分析. 林业资源管理, 4, 78-84.]
[56]	Zhou XY, Wang BS, Li MG, Zan QJ (2000). An analysis of interspecific associations in secondary succession forest communities in Heishiding Natural Reserve, Guangdong Province.Acta Phytoecologica Sinica, 24, 332-339.
	(in Chinese with English abstract) [周先叶, 王伯荪, 李鸣光, 昝启杰 (2000). 广东黑石顶自然保护区森林次生演替过程中群落的种间联结性分析. 植物生态学报,24, 332-339.]

	物种 Species
乔木层 Tree layer	枫香树 Liquidambar formosana、黄檀 Dalbergia hupeana、檫木 Sassafras tzumu
亚乔木层 Sub-tree layer	红楠 Machilus thunbergii、黄檀 Dalbergia hupeana、赤皮青冈 Cyclobalanopsis gilva
灌木层 Shrub layer	红楠 Machilus thunbergii、赤皮青冈 Cyclobalanopsis gilva、山胡椒 Lindera glauca、矮小天仙果 Ficus erecta、山矾 Symplocos sumuntia、格药柃 Eurya muricata、红果山胡椒 Lindera erythrocarpa、苎麻 Boehmeria nivea、黄丹木姜子 Litsea elongata、大青 Clerodendrum cyrtophyllum、紫楠 Phoebe sheareri、红脉钓樟 Lindera rubronervia 、赛山梅 Styrax confusus、野柿 Diospyros kaki、青冈 Cyclobalanopsis glauca、窄基红褐柃 Eurya rubiginosa、糙叶树 Aphananthe aspera 、米槠 Castanopsis carlesii 、茶 Camellia sinensis、朴树 Celtis sinensis、枸骨 Ilex cornuta、胡颓子 Elaeagnus pungens、苦枥木 Fraxinus insularis、锦绣杜鹃 Rhododendron pulchrum、栲 Castanopsis fargesii、雷公鹅耳枥 Carpinus viminea、毛脉槭 Acer pubinerve、黄檀 Dalbergia hupeana

	物种 Species
乔木层 Tree layer	枫香树 Liquidambar formosana、黄檀 Dalbergia hupeana、檫木 Sassafras tzumu
亚乔木层 Sub-tree layer	红楠 Machilus thunbergii、黄檀 Dalbergia hupeana、赤皮青冈 Cyclobalanopsis gilva
灌木层 Shrub layer	红楠 Machilus thunbergii、赤皮青冈 Cyclobalanopsis gilva、山胡椒 Lindera glauca、矮小天仙果 Ficus erecta、山矾 Symplocos sumuntia、格药柃 Eurya muricata、红果山胡椒 Lindera erythrocarpa、苎麻 Boehmeria nivea、黄丹木姜子 Litsea elongata、大青 Clerodendrum cyrtophyllum、紫楠 Phoebe sheareri、红脉钓樟 Lindera rubronervia 、赛山梅 Styrax confusus、野柿 Diospyros kaki、青冈 Cyclobalanopsis glauca、窄基红褐柃 Eurya rubiginosa、糙叶树 Aphananthe aspera 、米槠 Castanopsis carlesii 、茶 Camellia sinensis、朴树 Celtis sinensis、枸骨 Ilex cornuta、胡颓子 Elaeagnus pungens、苦枥木 Fraxinus insularis、锦绣杜鹃 Rhododendron pulchrum、栲 Castanopsis fargesii、雷公鹅耳枥 Carpinus viminea、毛脉槭 Acer pubinerve、黄檀 Dalbergia hupeana

检验方法 Test methods	乔木层物种 Tree layer species	正联结(相关) Positive association (correlation)
χ²检验 χ²-test	枫香树 Liquidambar formosana
	檫木 Sassafras tzumu
	黄檀 Dalbergia hupeana
Spearman秩相关检验 Spearman rank correlation test	枫香树 Liquidambar formosana
	檫木 Sassafras tzumu	红楠 Machilus thunbergii^*
	黄檀 Dalbergia hupeana

检验方法 Test methods	乔木层物种 Tree layer species	正联结(相关) Positive association (correlation)
χ²检验 χ²-test	枫香树 Liquidambar formosana
	檫木 Sassafras tzumu
	黄檀 Dalbergia hupeana
Spearman秩相关检验 Spearman rank correlation test	枫香树 Liquidambar formosana
	檫木 Sassafras tzumu	红楠 Machilus thunbergii^*
	黄檀 Dalbergia hupeana

检验方法 Test methods	乔木层物种 Tree layer species	正联结 Positive association	负联结 Negative association
χ²检验 χ²-test	枫香树 Liquidambar formosana	青冈 Cyclobalanopsis glauca^*、山矾 Symplocos sumuntia^、枸骨 Ilex cornuta^、红脉钓樟 Lindera rubronervia^、胡颓子 Elaeagnus pungens^、黄丹木姜子 Litsea elongata^、锦绣杜鹃 Rhododendron pulchrum^、米槠 Castanopsis carlesii^、窄基红褐柃 Eurya rubiginosa^	苎麻 Boehmeria nivea^*
	檫木 Sassafras tzumu	毛脉槭 Acer pubinerve^*
	黄檀 Dalbergia hupeana
Spearman 秩相关检验 Spearman rank correlation test	枫香树 Liquidambar formosana	糙叶树 Aphananthe aspera^*、赤皮青冈 Cyclobalanopsis gilva^、格药柃 Eurya muricata^、枸骨 Ilex cornuta^、红果山胡椒 Lindera erythrocarpa^、红脉钓樟 Lindera rubronervia^、红楠 Machilus thunbergii^、锦绣杜鹃 Rhododendron pulchrum^、米槠 Castanopsis carlesii^、青冈 Cyclobalanopsis glauca^、山矾 Symplocos sumuntia^、山胡椒 Lindera glauca^、野柿 Diospyros kaki^、窄基红褐柃 Eurya rubiginosa^、胡颓子 Elaeagnus pungens^、栲 Castanopsis fargesii^、赛山梅 Styrax confusus^、紫楠 Phoebe sheareri^*
	檫木 Sassafras tzumu	红楠 Machilus thunbergii^、毛脉槭 Acer pubinerve^	苎麻 Boehmeria nivea^*
	黄檀 Dalbergia hupeana	苎麻 Boehmeria nivea^*	赤皮青冈 Cyclobalanopsis gilva^*、格药柃 Eurya muricata^、青冈 Cyclobalanopsis glauca^、山矾 Symplocos sumuntia^、山胡椒 Lindera glauca^、红楠 Machilus thunbergii^、赛山梅 Styrax confusus^、野柿 Diospyros kaki^