从种间联结分析濒危植物毛柄小勾儿茶在群落中的地位

doi:10.17521/cjpe.2005.0033

摘要/Abstract

摘要：

毛柄小勾儿茶 (Berchemiellawilsoniivar.pubipetiolata) 为我国分布于浙江、安徽局部地区的特有珍稀物种, 由于自身和人为干扰的原因, 该种受到灭绝威胁。该文在 2× 2联列表基础上, 应用 χ2 检验、联结系数 (AC) 分别检测了毛柄小勾儿茶在 4个分布点与群落中乔、灌两层植物的种间联结性。综合比较 χ2 检验与AC值的测定结果, 在 4个分布点, 毛柄小勾儿茶与群落中其它种群的关联情况十分相似 :1) 绝大多数种群与毛柄小勾儿茶的AC值在 - 0.2至 0.2之间, 即无关联 ;2 ) 与毛柄小勾儿茶存在显著关联的种群仅有一个或无 ;3) 优势种群与毛柄小勾儿茶关联小。这说明 4个分布点毛柄小勾儿茶在群落中都具有很大的独立性或随机性, 它只是群落的伴生种或偶见种。研究结果对为该物种制定合适的就地保护措施和恢复计划具有参考价值。

关键词: 濒危植物, 毛柄小勾儿茶, 种间联结, 联结系数

Abstract:

Berchemiella wilsonii var. pubipetiolata is a local endemic species distributed discontinuously throughout the Mt. Dabieshan region of the Anhui Province and Mt. Qingliangfeng region of Zhejiang Province, eastern China. Because of the human impacts on natural ecosystems, it is under the threat of extinction and has been ranked as an endangered species. In this study, we assessed the community status of B. wilsonii var. pubipetiolata as a basis for its conservation. Based on 2×2 contingency tables, the interspecific correlation of B. wilsonii var. pubipetiolata in the tree layers and shrub layers with other species analyzed in four different communities were studied by using χ 2 tests and association coefficients (AC). The results indicated that the interspecific correlations of B. wilsonii var. pubipetiolata to other species were very similar in each of the four sites. The value of AC between most species and B. wilsonii var. pubipetiolata ranged from -0.2 to 0.2, which indicated that there was no relationship between B. wilsonii var. pubipetiolata and other species. The χ 2 analysis indicated that either no species or only one species in a community had a significant relationship with B. wilsonii var. pubipetiolata. There were no significant relationships between the dominant species and B. wilsonii var. pubipetiolata in any of the communities. All of the above results imply that B. wilsonii var. pubipetiolata was distributed independently or had random occurrence in the different communitiesindicating that it is an incidental or rare species. This case study highlights the importance of having a good understanding of the ecological characteristics of uncommon plants as a basis for making decisions regarding their conservation.

Key words: Endangered plant species, Berchemiella wilsonii var. pubipetiolata, Interspecies association, Association coefficient

胡理乐, 江明喜, 党海山, 黄汉东. 从种间联结分析濒危植物毛柄小勾儿茶在群落中的地位. 植物生态学报, 2005, 29(2): 258-265. DOI: 10.17521/cjpe.2005.0033

HU Li-Le, JIANG Ming-Xi, DANG Hai-Shan, HUANG Han-Dong. COMMUNITY STUDIES ON THE STATUS OF THE ENDANGERED PLANT, BERCHEMIELLA WILSONII VAR. PUBIPETIOLATA, USING INTERSPECIFIC ASSOCIATION ANALYSIS. Chinese Journal of Plant Ecology, 2005, 29(2): 258-265. DOI: 10.17521/cjpe.2005.0033

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2005.0033

https://www.plant-ecology.com/CN/Y2005/V29/I2/258

图/表 4

表2 毛柄小勾儿茶与各研究地点物种间关联测度值

Table 2 The values of χ2 and AC between Berchemiella wilsonii var. pubipetiolata and species in all four sampling areas

图1 霍山联结系数半矩阵图 (AC值) 1大果山胡椒Lindera praecox 2山胡椒Lindera glauca 3伞形绣球Hydrangea umbellata 4华中五味子Schisandra sphenanthera 5青榨槭Acer davidii 6杜鹃Rhododendron simsii 7宁波溲疏Deutzia ningpoensis 8香槐Cladrastis wilsonii 9千金榆Carpinus cordata10苦木Picrasma quassioides 11华千金榆Carpinus cordata var.chinensis 12短柄木包栎Quercus glandulifera var.brevipetiolata 13化香Platycarya strobilacea 14中华绣线梅Neillia sinensis 15棣棠Kerria japonica 16蜡瓣花Corylopsis sinensis 17三叶木通Akebia trifoliata18金缕梅Hamamelis mollis 19盘叶忍冬Lonicera tragophylla 20山橿Lindera reflexa 21白蜡树Fraxinus chinensis 22五角枫Acer mono 23羊尿泡Rubus malifolius 24金银忍冬Lonicera maackii 25四照花Dendrobenthamia japonica var.chinensis 26毛柄小勾儿茶Berchemiella wilsonii var.pubipetiolata 27茅栗Castanea seguinii 28黑枣Diospyros lotus 29叶下珠Phyllanthus urinaria 30木半夏E-laeagnus multiflora 31白檀Symplocos paniculata 32绿叶胡枝子Lespedeza buergeri 33水马桑Weigela japonica var.sinica 34江浙钓樟Lindera chienii

Fig.1 Half-matrix diagram of interspecific association in Huoshan

图2 霍山χ2半矩阵图物种编号同图1

Fig.2 Half-matrix diagram of χ 2-test in Huoshan The species No.see Fig.1

表1 毛柄小勾儿茶分布地点自然环境因子

Table 1 Environmental factors of locations of Berchemiella wilsonii var. pubipetitola

环境因子 Environmental factors	霍山^* Huoshan	舒城^** Shucheng	湍口 Tuankou	马啸 Maxiao
年均温 (℃) Annual average temperture	14	13.6	15.1	11.8
年降水量 (mm) Annual average rainfall	1 391	1 300	1 424.8	1 500
纬度 Latitude	31°5.29′~31°6.12′ N	31°2.63′~31°3.56′ N	30°0.51′~30°1.12′ N	30°8.57′~30°9.29′ N
经度 Longitude	116°11.34′~116°12.14′ E	116°32.83′~116°33.83′ E	119°1.53′~119°2.66′ E	118°50.80′~118°53.65′ E
海拔 Altitude (m)	900~1 170	570~910	450~750	500~740
取样数 Sample number	32	19	9	8

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